Commit Graph
16 Commits
Author SHA1 Message Date
wyuc fcb464bdf0 fix(dsl): migrate away legacy rotate/height fields on line elements (#1261)
* fix(dsl): strip legacy rotate/height from line elements on migration and import (#1260)

* fix(dsl): cover whiteboard slides in the legacy line strip, drop redundant import wiring

Round-1 review findings (#1261): the strip only walked
scenes[*].content.canvas.elements, leaving the same bug class latent on
interactive whiteboard slides (scenes[*].whiteboards[*].elements); and the
import-site sanitize was redundant because the document store already runs
the ladder on save, while its comment misdescribed that mechanism. Extend
the strip to whiteboards and let the ladder alone own the cleanup.

* fix(dsl): cover stage-level whiteboard boards and row envelopes in the legacy line strip

Round-2 terminal audit findings (#1261): the strip walked only the
document envelope's scene surfaces, so dirty line elements under
stage.whiteboard (the stage-level explainer boards) and under bare
Scene/Stage row envelopes passed through while the runner stamped the
document current. Walk every line-element surface of every migratable
envelope: scene canvas, scene whiteboards, and stage whiteboard, at
document, Scene-row, and Stage-row roots.

* fix(dsl): gate the canvas strip on the slide discriminant; run the ladder on legacy-only exports

Round-3 terminal audit findings (#1261): the canvas walk fired on any
canvas-shaped content regardless of the scene kind, so a non-slide scene
carrying a canvas-shaped app extension would have fields deleted from it
— gate on content.type ('slide' or absent, the dirty-line epoch predates
schema enforcement). And the lock-free exportDatabase fallback
hand-stamped DSL_VERSION onto a payload the ladder never walked, so a
backup could read as current on restore and permanently skip the
migration — build the export unstamped and let migrate stamp it.

* fix(agent-runtime): bring stale-stamped documents current before incremental scene writes

Round-4 audit finding (#1261): putScene rejects documents whose stored
DSL stamp is older than the current one, and the aggregate read migrates
in memory only, so the first server-side tool write into a course stored
at an older version (every pre-bump course, including previously
imported ones) failed with a version error. Route the server tools'
incremental scene writes through a wrapper whose not-current fallback
reloads the migrated aggregate and full-saves it with the scene spliced
in — the server-side counterpart of the app autosave's
catch-and-full-save.

* style: prettier

* docs(agent-runtime): record the reviewed concurrency window on the stale-stamp fallback
2026-08-28 14:06:03 +08:00
wyucandClaude Fable 5 04621578de release: OpenMAIC 1.0.0 — the agent workbench (#1228)
* feat(storage): add an agent-session store with PG backend and layered contracts (#1163)

* feat(storage): add agent-session store with PG backend and layered contracts

* test(storage): avoid BigInt literals for pre-ES2020 root typecheck

* fix(storage): close agent-session store review findings

* docs(storage): align hook ordering and contention-probe claims with the code

* ci: run on the agent-workbench integration branch

* chore(storage): bump to 0.5.0 for the agent-session store

* fix(storage): carry replay compaction across page boundaries

* feat(agent): add the driver model contract and stage route dialect (#1165)

* feat(agent): add the driver model contract and stage route dialect

* fix(agent): validate route context windows and clarify dialect precedence

* feat(agent): adapt the agent-session store and runtime foundations (#1167)

* feat(agent): adapt the agent-session store and runtime foundations

* feat(agent): resolve request owner identity via an anonymous cookie

* docs(agent): document the opt-in compaction default and harden edge cases

* feat(agent): add the background session runner (#1169)

* feat(agent): add the background session runner

* feat(agent): wire the runner into startup behind feature flags

* fix(agent): stop clean interruptions from consuming the attempt budget

* fix(storage): charge the attempt budget for abandoned leases but not clean parks

* docs(storage): document the attempt-charging contract and decouple its tests

* feat(agent): add agent session and owner event streams (#1170)

* feat(agent): add agent session and owner event streams

* fix(agent): close the session-existence oracle and document the owner seam

* feat(agent): add agent session lifecycle routes (#1171)

* feat(agent): add agent session lifecycle routes

* fix(agent): validate session-create input and preserve the owner cookie on errors

* refactor(storage): drop the unused active-stage API from the agent-session contract (#1174)

* refactor(storage): drop the unused active-stage API from the agent-session contract

Tools address stages explicitly on every call, so the store keeps no
mutable session-level stage pointer. Removes resolveActiveStage and
setActiveStage from the store interface, their PG implementations, the
active_stage_changed lifecycle event, the session_active_stage owner
event variant, and the contract tests pinning them. The active_stage_id
column and the DDL check constraint stay untouched for schema
compatibility.

* chore(storage): bump @openmaic/storage to 0.7.0 for the contract removal

* docs: document the agent runtime configuration surface (#1176)

* fix(agent): repair orphaned and late tool results across interruption boundaries (#1180)

* fix(agent): repair orphaned and late tool results across interruption boundaries

A crash, shutdown, or provider failure can leave the durable transcript with
tool calls that have no result, or with results ordered illegally for the
provider. Three failure modes were fixed:

- Orphaned tool calls: a run that died between an assistant tool-call frame
  and its result left a dangling call in the entry tree. Resume no longer
  synthesizes and persists receipts for it: interrupted results are a
  read-time provider view owned by a shared read-boundary repair, which
  returns the original array for a healthy transcript and never mutates the
  tree.

- Late parallel results: a parallel tool can finish while pi unwinds an
  aborted assistant frame, leaving result(A), assistant(aborted), result(B)
  in durable order. Strict providers reject non-contiguous results, so the
  read-boundary repair moves existing results next to their owning assistant
  frame (in call order), omits incomplete unwind frames, and synthesizes
  receipts only for genuinely missing calls.

- Interrupted calls at the write boundary: a call still in flight when the
  run winds down (shutdown, lease loss, cancellation, provider failure) had
  no receipt at all. The runner now tracks in-flight calls from their
  assistant frames and, before the terminal flush, appends an
  interrupted-result receipt for each still-orphaned call through the same
  attempt-fenced write chain, so a lease-stealing zombie never writes and
  the next claim sees a provider-safe transcript.

* test(agent): pin the runner wiring for interruption-boundary tool repair

* feat(agent): add neutral tool foundation libraries (#1184)

* feat(agent): register a web_search tool on the session runner (#1185)

* feat(storage): add a per-session URL trust gate (#1186)

* feat(agent): add the skills system (#1189)

* feat(agent): add the skills system (builtin directories and durable user skills)

* fix(storage): serialize the user-skill quota check-and-insert per owner

Two concurrent creates at the 50-skill boundary both counted 49 rows and
both inserted (READ COMMITTED, no lock), overshooting the quota contract.
The create transaction now takes a per-owner pg_advisory_xact_lock first,
and the same-name idempotency check runs before the count check so an
at-least-once retry of the create that committed as the owner's 50th row
still returns its durable receipt instead of a quota error. The 23505
backstop is retained for writes that do not take the lock.

* fix(agent): share unstorable-character validation and align skill lookup

* feat(agent): add session materials and a fetch_url tool behind the URL trust gate (#1190)

* feat(agent): add session materials and a fetch_url tool behind the URL trust gate

* fix(agent): harden session material fetching

* feat(storage): add an ownership scope to stage documents (#1191)

* feat(agent): add material read and search tools (#1192)

* feat(agent): add stage read and patch tools (#1194)

* feat(agent): add page generation and deck editing tools (#1198)

* test(storage): keep the PG contract suite order-independent (#1200)

* fix(agent): revoke deleted-session URL authority and reject private ISATAP endpoints (#1199)

* fix(storage): revoke deleted session URL authority

* fix(ssrf): reject private ISATAP endpoints in strict fetches

* chore(storage): bump to 0.11.1 for the session-URL authority fix

* feat(agent): add roster and voice registration tools (#1201)

* feat(agent): add folder organisation tools (#1202)

* feat(api): add stage and material HTTP routes (#1203)

* feat(workbench): add the client data layer (#1204)

* feat(workbench): add the client data layer

* docs(workbench): write the ported comments in English

* chore(edit): remove the in-editor agent panel (#1210)

* chore(edit): remove the in-editor agent panel

* style: apply prettier formatting

* fix(agent): report the runtime as unusable without a database (#1207)

* fix(agent): report the runtime as unusable without a database

* style: apply prettier formatting

* feat(agent): add image, video and pptx import tools (#1211)

* feat(workbench): add the agent chat surface (#1205)

* feat(workbench): add the agent chat surface

* docs(workbench): write the ported comments in English

* fix(workbench): label the folder and rename tools on the timeline

* fix(workbench): label the roster and voice tools on the timeline

The reconciliation test iterates every tool the runner registers and
requires a display label of its own. The roster and voice-clone tools
(list_voices, set_roster, clip_audio, register_voice) reached the
integration base with the roster/voice-registration tools but never
gained presentation rows, so they fell through to the default branch
and rendered their wire names. Port their rows from the reference
implementation (labels and i18n keys verbatim) and extend the
reconciliation allowlist with ROSTER_TOOL_NAMES and
VOICE_CLONE_TOOL_NAMES, so a future tool cannot enter the product
without a label.

* feat(agent): add the material extraction lifecycle (#1212)

* feat(storage): add material extraction lifecycle

* feat(agent): execute queued material extraction

* style: apply prettier formatting

* style: satisfy prefer-const in the extraction runner

* test: give material fixtures the extraction lifecycle fields

The media-tools slice and the extraction lifecycle slice were each green
in isolation but never compiled together: the lifecycle made derivedFrom
and extraction required on AgentSessionMaterial while the media-tool
fixtures predate them.

* chore: remove stray task notes

* fix(workbench): label the extraction lifecycle tools on the timeline

* feat(workbench): add the workspace shell (#1206)

* feat(workbench): add the workspace shell

* docs(workbench): write the ported comments in English

* i18n(workbench): align workspace keys across locales

* fix(workbench): adopt the landed data layer and label the extraction tools

- replace the sibling-slice seam stubs with the real data-layer modules
- drop ambient declarations now shadowed by landed files
- port timeline labels for the extraction lifecycle tools from the reference
- align the new i18n keys across all locales

* ci: retrigger

* feat(api): folder routes, stage-meta viewer surfaces, and the material upload contract (#1215)

* fix(storage): restore capability-based stage access

* fix(api): bind document access to request owner

* fix(agent): restore three-state stage access on the tool layer

Port probeStageAccess and the three-state StageAccess (owned / foreign /
missing / tombstoned) and gate every stageId-bearing stage tool on an owned
probe, mirroring the reference per tool:

- move_to_folder, rename_stage, read_stage_outline refuse a non-owned stage
  with the single not-yours message before touching the store.
- The course/DSL toolset and the roster toolset are wrapped by
  withOwnerStageAuthorization: read_stage, patch_stage, grep_stage and every
  writer refuse a foreign stage with the same message and refusal shape.
- Scene preview keeps its own probe and its own refusal text, and is
  registered beside the course toolset (never double-gated).
- The runner injects one probe factory at the three call sites.

Tests: the dsl cross-owner test premise (a foreign stage is readable by id)
encoded an invented capability-read policy that the reference does not have
at the tool layer; it now asserts foreign read/patch/grep are all refused
while the owner still reads. Curriculum cross-owner assertions were already
the reference's and now pass with the probes in place.

* docs: correct per-file test counts in the fidelity report

* test: fix type errors in stage-access fidelity test

* test: adapt media-tool and gate suites to the owner-scoped store seam

* feat(api): add owner-scoped course-folder HTTP routes

Port the reference implementation's /api/folders family (list, create,
rename, delete with ungroup/remove modes, and folder membership) onto the
owner-bound document store, replacing its provider-based auth with the
existing withRequestOwnerId / owner-scoped store seams.

The storage package's folder store grows the pieces the routes need:
DocumentFolder.order (schema column + max+1 assignment + ordering),
renameFolder, deleteFolder(mode) with captured member ids, and
setStageFolder(stageId, folderId | null) with idempotent un-filing.
FolderNameError moves into folder-name-validation.ts (stage-storage re-exports
it, keeping import sites intact).

Every route gates on the configured agent runtime (plain 404 when off or
unconfigured), keeps the reference's machine codes and envelopes, and is
covered by gate tests plus a behavior suite.

* feat(api): add stage-meta viewer surfaces for the classroom

Port the reference implementation's viewer-facing stage state — can-edit /
collected / published / generation-complete — on top of the stage-access
base (stage_meta + tombstones). stage_meta gains published_at and
generation_complete columns plus a stage_bookmarks table; the reference's
deployment-specific origin/claimed_at columns are stripped.

New gated routes: GET /api/stage-meta/[stageId] (per-viewer facts, 404 for
absent/tombstoned, never returns the owner id), GET /api/stages/[id]/status,
POST generation-complete / publish / unpublish (owner-only), POST
/api/bookmarks. The resolver lives in lib/server/stage-access.ts.

Wiring: a fetchStageMeta client with the reference's three-outcome contract,
stage-store isOwner/isBookmarked/readOnly fields (upstream single-user
defaults, no-op until the sidecar answers) plus setViewerAccess, the
classroom apply path computing readOnly = !(isOwner || isBookmarked), the
Stage editability gate, and a sidecar probe after each classroom load. A
sidecar 'absent' answer keeps the editable default here because the
classroom also serves local-only courses; server writes stay owner-enforced.

* feat(api): port the reference material upload contract

Rewrite POST /api/materials to the reference implementation's upload shape
so the workbench uploader (uploadWorkbenchMaterial, which posts no session
id and expects a flat 201 view) works unchanged: owner-scoped upload with
mime normalization/validation (415), per-class size caps checked on the
declared content-length and the streamed body (413), empty body (400),
quota (429), sha256 reserve->store->finalize lifecycle with abandon on
failure, flat { materialId, originalName, bytes, mime, extraction } 201,
and an x-request-id echo.

Adds the owner-scoped material library (owner_material table + quota +
24h lazy sweep, bytes in the host's asset registry as the neutral
replacement for the reference's object-storage byte path) and the material
cap configuration. The session-scoped GET list is left as-is; the
reference's owner-material extraction worker is not ported (the branch's
session-material extraction lifecycle already covers extraction).

Gate tests now cover all 23 persistence routes across the three runtime
env states; the materials behavior suite pins the new contract.

* feat(media): add an optional local ffmpeg media extractor (#1213)

Adds a local ffmpeg/ffprobe pipeline as a second media extraction
provider behind the extractor registry, ported faithfully from the
reference implementation: duration probing, keyframe-safe chunking,
per-chunk ASR with timeout and deadline budgets, and timestamped
transcript assembly.

- Availability probing feeds the registry's candidate selection: the
  provider simply is not a candidate when ffmpeg/ffprobe are absent.
- With neither ffmpeg nor a cloud provider configured, extraction fails
  with an actionable message naming both enablement paths.
- Media materials route through the same extraction lifecycle and lease
  fence as documents; no parallel queue.
- Tests inject the executable resolver so the missing-ffmpeg path is the
  default-tested one; the real pipeline test is skip-if-unavailable.
- @openmaic/storage 0.13.0 -> 0.14.0 (media routing in the material
  lifecycle surface).

* feat(storage): per-scene monotonic revisions via database triggers (#1214)

* feat(storage): per-scene monotonic revisions via database triggers

Restore the reference implementation's freshness granularity: a
per-scene monotonic revision maintained by database triggers, so every
writer (HTTP routes, agent tools, jobs, manual SQL) bumps it without
application cooperation.

- Companion revision tables + trigger functions in the storage package's
  idempotent schema bootstrap, with the lock-order invariant, pg_notify
  wakeup and the suppression switch for batch writers.
- ensureDocumentSchema gained a dollar-quote-aware statement splitter.
- The freshness and manifest routes serve per-scene revisions.
- Mutation-verified: dropping the triggers turns the revision tests red.
- @openmaic/storage 0.13.0 -> 0.14.0.

* fix: forward the freshness manifest through the owner-bound store

* feat(workbench): add the Pro entry points and preserve the mode-transition semantics (#1208)

* feat(workbench): add the Pro entry points

* feat(workbench): preserve Pro mode transition semantics

* fix(workbench): drop ambient declarations shadowed by landed slices

* fix(workbench): drop ambient declarations shadowed by the landed shell

* feat: port workspace shell sibling modules

Port the 16 leaf modules the Pro workspace shell imports but that were only
ambient-declared, replacing the compile-time bridge with real implementations
adapted from the sibling-slice reference: pure workbench helpers (session
title, rail tab, course-chat bootstrap, created-course tabs, course-tabs
memory, workspace navigation, pane navigation, pro-edit sizing,
existing-course minting, first-message session), the neutral brand context and
course-rename server API, the server-action session delete, the home
discovery hook, the classroom pane host with its load-policy leaf, the theme
toggle and floating-layer owner, plus the floating-layer-owner wiring the
dialog/dropdown/tooltip portals stamp.

Also add the workbench-shell locale copy for all 12 locales, port the
reference tests for the ported modules, and drop
types/workbench-sibling-slices.d.ts now that every declaration has a real
implementation.

* docs: keep ported comments in English and deployment-neutral

* docs: announce 1.0.0 and refresh the feature overview (#1216)

* docs: announce 1.0.0 and refresh the feature overview

* docs: finalize 1.0.0 README after feature merge

* fix(agent): control-plane routes answer 404, not 500, without a database

The agent control-plane routes gated only on the runtime flag, so an
enabled-but-unconfigured deployment (flag on, DATABASE_URL empty)
answered 500 from a store that cannot connect. Gate them on the
configured check instead, matching the stage/material routes: the
whole surface is cleanly absent until both the flag and the database
are present. The status probe keeps reporting both bits.

* test: mock both runtime gate exports in the control-plane route suites

* fix(agent): abort in-flight TTS on cancel and bound each provider request with a timeout (#1217)

The generate_tts / scene-tts path checked the runner's AbortSignal between
actions but never created the provider HTTP requests with it, so a session
cancel left a hung synthesis fetch in flight until a restart repaired the
tool result. Thread the signal end-to-end: TTSModelConfig carries an
optional signal, generateTTS combines it with a per-request timeout
(TTS_REQUEST_TIMEOUT_MS, default 30s, ported from the reference runtime's
TTS bounds) via AbortSignal.any, and every provider fetch (openai, azure,
glm, qwen incl. voice-clone + audio download, voxcpm, minimax, doubao,
elevenlabs, lemonade) is created with that signal.

A timeout now fails the tool call with TTSRequestTimeoutError (a clear
retryable error) instead of wedging the session; a caller cancel propagates
as the interruption so the runner settles the session as cancelled without
a restart.

Tests: hung-provider simulation rejects at the timeout with the retryable
error; abort mid-flight aborts the captured request signal and surfaces the
interrupted shape; removing the signal wiring makes the abort tests fail
(red), restoring them turns green.

* fix(workbench): PG-mode home listing via owner stages; keep the interrupted terminal course card (#1218)

Finding 1: with server persistence on, listStages resolved to the generic
GET /api/persistence/documents listing, which the capability model
deliberately answers 403 FORBIDDEN_DOCUMENTS for (reads by id, listings
owner-only). The home/workspace library now lists through the owner-scoped
GET /api/stages surface (same anonymous-owner cookie the workbench uses)
when server persistence is enabled; the server-side 403 is untouched.

Finding 2: a run interrupted (session_interrupted) and repaired
(session_resumed) that ends cancelled before agent_end stranded its pending
classroom sightings, so the timeline's terminal card lost the course the
answer produced. session_end (cancelled) now flushes the pending sightings
into the same course card set agent_end paints, before the stopped caption.

* chore(workbench): remove the bookmark concept and the saved-courses drawer (#1219)

* chore(classroom): remove the bookmark ('collected') concept entirely

The stage-meta viewer port introduced a bookmark surface (stage_bookmarks
table, POST /api/bookmarks, the isBookmarked sidecar field, and a
readOnly rule that let a saved course stay editable). The product has no
such concept, so remove it as a closure:

- delete the /api/bookmarks route and the stage_bookmarks table plus its
  query helpers from the persistence bootstrap
- drop isBookmarked from GET /api/stage-meta/[stageId]
- simplify the classroom read-only rule to readOnly = !isOwner across the
  sidecar client, ownership signal, classroom load, stage store and the
  classroom page
- keep publish/unpublish, generation-complete, isOwner and isPublic
  exactly as they were
- update the gate and stage-meta route suites and the README mentions

The workspace rail's Bookmark glyphs and comments describe the upstream
saved-courses (favorites) section, which is driven by isOwner and renders
no collect affordance; they are kept as unrelated homonyms.

* chore(workbench): remove the saved-courses drawer UI

The first pass removed the bookmark data model but kept the rail's
"Saved courses" drawer, judging it a separate surface driven by
`isOwner === false`. The home/workspace listing is owner-scoped, so that
flag can never occur: `allSaved` is permanently empty and the drawer
(plus the collapsed-rail Bookmark mini-button) is a dead affordance.
Remove it: the SavedDrawer component and its mount, the savedOpen /
savedSection state, the allSaved / matchedSaved derivations, the 'saved'
variant of the course-list renderers, the mini Bookmark glyph, the
drawer-only CSS, and the drawer's i18n keys from all 12 locales. The
courses tab is now exactly one folders tree.

The authored/favorites split in workspace-tree.ts goes with it; the tree
module no longer reads `isOwner`. The discovery course type keeps the
field — the shell still reads it for read-only gating.

Upstream has no collect concept; the drawer could only ever render empty
here. The reference implementation HAS this drawer (its favorites come
from its account system), so this removal is a deliberate upstream
product decision, not a fidelity bug.

* fix(workbench): restore the attach entry, add the rail settings entry, pin all three entry points (#1221)

* fix(workbench): restore the composer attach entry by gating it on the live runtime

The AttachButton's rollout probe read a `materialsEnabled` field that this
branch's /api/agent/runtime never answers (the materials routes gate on the
runtime itself, like the stages), so the gate could never pass and the attach
button never rendered — the Pro launch and chat composers showed only the
@-mention and enhance glyphs.

Substitute the field with the runtime's `enabled` value, which IS the upload
action's precondition: POST /api/materials answers 404 whenever it is false,
so the render condition now equals the action precondition (no dead button).

The button's label (`proMode.attach`) is a user-visible string that becomes
visible again; port the reference implementation's own translations verbatim
into the 11 locales that still carried the Chinese copy.

* feat(workbench): add the settings entry to the rail's bottom-left cluster

The reference's rail foot carries a cluster of utilities (its saved-courses
drawer, the language switcher, the display toggle). This branch removed the
drawer — it could only ever render empty here — and the product decision is
to fill that freed spot with the settings entry.

Add a settings trigger to the foot cluster (expanded rail, beside the
language and display toggles, and on the collapsed strip) and mount the
model/provider SettingsDialog in the rail, wired to the trigger. It is the
same dialog the classic home opens from its header pill; the workspace had no
settings entry of its own, so nothing is duplicated within a surface.

* test(workbench): pin the restored upload, attach, and settings entry points

Covers the three restored entry points:

- the courses-tab upload control: rendered beside the course name filter,
  wired to the discovery hook's ZIP import trigger, disabled while an import
  runs, and gated by the same condition as its action (the courses tab);
- the composer attach control: an actual render of AttachButton under both
  probe answers (visible when the runtime says the upload path is live,
  hidden otherwise), its mounts in the launch and chat composers, the
  branch's runtime-field substitution in the probe, and the reference's own
  `proMode.attach` copy in all 12 locales;
- the settings entry: the trigger in the rail's foot cluster (expanded and
  collapsed), beside the language and display toggles, opening the
  SettingsDialog the rail mounts.

* chore(config): the Pro workbench flag implies the MAIC Editor gate (#1223)

A workbench build without the editor toggle has no way to edit a course:
enabling NEXT_PUBLIC_PRO_WORKBENCH_ENABLED while forgetting
NEXT_PUBLIC_MAIC_EDITOR_ENABLED produced exactly that split-brain bundle.
The workbench IS Pro mode, so its flag now implies the editor gate; the
standalone flag remains for deployments that want the classroom editor
without the workbench. Documents both flags in .env.example.

* fix(agent): wake SSE tails and the runner on durable deltas (streaming fidelity) (#1222)

The Pro workbench chat did not stream: the session/owner SSE routes polled
the durable event log on a 5s/30s clock with no wakeup, so message_update
deltas (written at 150ms cadence) reached the browser in poll-sized blocks
and the thinking strip only mounted after the whole reasoning text had
accumulated.

Port the reference's LISTEN/NOTIFY delta path:

- storage: add in-transaction wake hooks (onSessionEventAppended,
  onOwnerEventAppended, onCancelRequested) so a host queues pg_notify in
  the same transaction as the durable append; align readEventsAfterForReplay
  to rank the bounded page so the first delta after the cursor is always
  kept (the live tail can never starve). Bump @openmaic/storage to 0.18.0.
- app: port the process-wide event-notify bus (dedicated LISTEN client,
  self-check probe, reconnect backoff; notify through the storage
  transaction surface), wire the store hooks, subscribe both SSE routes
  before the initial read with the reference's initializing gate, and give
  the runner one {kind:'session'} subscription whose wake runs the cancel
  check and the message drain. Polls stay as the lossy-NOTIFY backstop.
- lifecycle: start/stop the bus from instrumentation.

Tests: storage hook + compaction contract; route wakeup latency; runner
wakeup wiring with a fake agent; bus unit tests; PG contracts proving a
real append wakes the routes and a live SSE route forwards a message_update
on the wakeup, and that a rolled-back append never wakes. Also fix the
pre-existing park-attempt-budget PG test TRUNCATE (missing CASCADE against
newer FK tables).

* fix(storage): asset writes self-deadlocked against pooled PostgreSQL (#1225)

* fix(storage): refuse the non-transactional byte-write deadlock configuration

A byte store whose plain write() runs on its own pooled connection cannot be
invoked from inside a registry write transaction: after the transaction has
claimed the blob-row lock, that write blocks on the lock the transaction just
took while the transaction waits on the write - a self-deadlock PostgreSQL
cannot detect (one side is idle in transaction).

There is no lock-safe ordering for such a writer: bytes must be written after
the row claim (writing before it lets the collector delete the bytes while the
upsert waits), and any second-connection write after the claim is the
deadlock. The configuration is therefore detected and refused:

- AssetByteStore gains writesOutsideRegistryDatabase?: true, declaring that the
  layer's plain byte operations cannot contend for the registry's row locks.
- PgAssetStore refuses put()/replace() up front (and defends coordinatedWrite)
  when the byte store has no writeWith and does not declare the flag, throwing
  a clear configuration error before any row is claimed.
- The collector mirrors the guard on its delete path (deleteWith or a declared
  out-of-registry layer, else a configuration error).
- The object store declares the flag (its out-of-transaction write remains
  legitimate); the in-registry PostgreSQL byte column provides writeWith /
  deleteWith instead.
- Write transactions (put/replace/remove) set SET LOCAL lock_timeout = 30s so
  any future lock-contention variant fails loudly instead of hanging.

Bumps @openmaic/storage to 0.18.0.

* fix(persistence): forward the transactional byte methods through the lazy asset byte-store wrapper

The no-bucket case of lazyAssetByteStore returned a bare { write, read,
delete } and dropped writeWith/readWith even though the underlying
PgAssetByteStore has them. The registry's hasTransactionalWriter duck check
then failed and put() fell back to the byte store's own pooled connection,
which blocks forever on the blob-row lock the registry transaction just took
when the bytes live in the same PostgreSQL - the production self-deadlock.

The no-bucket layer is statically PgAssetByteStore, so its transaction-pinned
methods are forwarded eagerly (typed against the real signatures via
PgForwardedByteStore). The bucket case keeps its lazy-probing semantics: no
transactional writer exists there, the signed-URL method stays absent or lazy
exactly as documented, and the wrapper now declares writesOutsideRegistryDatabase
so the registry may run the plain write inside its transaction.

New tests pin the wrapper's transactional capability red-to-green and assert
put()/resolve() route byte traffic through the transaction-pinned queryable.

* fix(home): cap the generate-prep ingest drain at 3s so Generate never waits the full server budget

The classic home flow's Generate click drained in-flight ingests for the full
15s server budget. Cap the wait at GENERATE_DRAIN_CAP_MS (3000ms, documented as
a UX bound) and reuse the existing timeout fallback: sources that miss the cap
proceed on the legacy byte path and each late-resolving id is released.

* chore(storage): bump to 0.19.0 over the concurrently landed 0.18.0

* fix(agent): bound every tool call with a timeout; never resurrect a cancelled session (#1226)

* fix(agent): bound every tool call with a global timeout and settle it on cancel

A tool await that neither resolves nor rejects wedges the session forever:
the lease keeps heartbeating and the driver never reaches its next cancel
checkpoint. Race every tool execution (in buildAgent) against a hard budget
(OPENMAIC_AGENT_TOOL_TIMEOUT_MS, default 10 min, per-tool overrides for
known long runners) and against the caller's AbortSignal, so even a
signal-ignoring await cannot keep a cancelled session running.

On timeout the call rejects with AgentToolTimeoutError; the agent loop turns
the rejection into a structured error tool-result the agent can retry or
proceed from, and the abort signal is delivered to the tool's in-flight work
through a derived controller. Zombie-tool updates after settlement are
dropped.

* fix(storage): never re-lease a cancel-requested session; settle it as cancelled on claim

The claim scan treated a session with cancel_requested_at set as a normal
claim candidate: after a restart it re-leased the same session for attempt
N+1 and resumed generating despite the pending cancel. claimNextSession now
settles such candidates as cancelled under the claim lock (status cancelled,
attempt reset, lease and cancel request cleared, terminal session_end event
and owner projection) instead of leasing them, then keeps scanning.

Bump @openmaic/storage to 0.18.0.

* docs: takeaway-style 1.0.0 announcement with bilingual guide links

The 1.0.0 head is now a short takeaway block — badge links to the
official user guides (English and Chinese), five one-line highlights,
and pointers into Features and the workbench setup section — instead of
six dense paragraphs. The detailed provider-neutrality and freshness
notes move into the Features workbench section, phrased database-
neutrally (the announcement no longer names a specific database).
Release date corrected to August 27.

* fix(workbench): restore editor chrome, mode transition, streaming, materials, mentions, folders (#1229)

* fix(workbench): wire workspace folder routes

* fix(editor): restore reference workbench chrome

* fix(workbench): persist composer materials and course refs

* fix(workbench): preserve live reasoning frames

* fix(persistence): back off failed streaming saves

* chore(workbench): retire stale slice seams

* test(editor): cover element pin layer

* chore(storage): bump to 0.21.0 for the user-message ref/material fields

* chore(editor): translate ported code comments to English

* fix(agent): fence durable tool writes and consume cancel requests atomically (#1230)

* fix(agent): enforce provider force-off in agent tools and scrub vendor identity from tool results (#1231)

* fix(materials): serialize per-owner quota reservations and make crashed uploads reclaimable (#1232)

* fix(editor): resolve dock-bar i18n keys, remove dock height drag, wire element referencing (#1233)

* fix(workbench): send the opening session message exactly once with refs intact (#1234)

* feat(editor): port timeline TTS preview single-flight and voice-all state latching (#1235)

* fix(media): restore the reference classic media chain (#1236)

* fix(import): adapt imported PPTX canvas size so decks render without overflow (#1237)

* fix(editor): complete element referencing — renderer DOM contract and GenUI picking aligned with the reference (#1238)

* test(providers): reconcile the provider-config vendor-token debt count after the main merge

The integration line's AK/SK fallback for the managed document provider adds
occurrences that main's allowlist snapshot predates. Same mixed-composition
debt category the group already documents; no new vendor behavior.

* test(providers): reconcile vendor-token debt counts with the integration line

The main-merge brought main's neutrality-guard snapshot next to integration
features it predates (media-extractor fallback chain, local voice-profile
deletion semantics, the enabled-TTS helper). Same debt categories the guard
already documents; counts updated to the guard's own tally and two grouped
entries added. No new vendor behavior.

* fix(agent): carry reasoning through the completions dialect so the thinking strip renders (#1239)

* feat(skills): add Feynman and spiral curriculum methods (#1240)

* feat(agent): port missing reference tools and skills (parity audit) (#1241)

* feat(media): retire asset-registry wiring; media and materials follow the reference byte model (#1242)

* fix(classroom): center adapted canvases in the stage and send back navigation home during generation (#1243)

* feat(settings): skill management with real list, download, delete, and upload (#1244)

* feat(settings): skill management section with real list, detail, and zip download

* feat(skills): owner skill delete and upload across storage, API, and settings

* fixup! feat(settings): skill management section with real list, detail, and zip download

chore: neutralize a reference note in the settings header comment

* fix(media): persist origin-independent classroom-media references from the agent runtime (#1245)

* feat(editor): float the insert toolbar in the outer frame with collapse (#1246)

The insert strip was bounded to the slide card, so it could only ever sit on
top of slide content: the card's overflow clipped it and it could not be parked
in the padding beside the slide. Move it into the studio frame the element
picker's panel already roams (CanvasOverlayPortal + the frame selector), so both
canvas overlays share one bounding container and their handles behave the same.
While picking, the strip rises over the picker and goes inert, which is the
z-order CANVAS_OVERLAY_Z already documents.

Add a fold beside the grip: the chevron collapses the strip to that grip row and
back, with the buttons unmounted rather than hidden. The fold is session-local
state owned by EditShell, next to the drag offset, so a surface swap keeps it;
nothing is persisted. Expanding a strip parked at the bottom edge re-clamps
through the same bounds rule the keyboard move uses.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

* fix(workbench): align the chat timeline's left edge with the composer (#1247)

* fix(agent): fence session claims while an ask_user question is outstanding (#1248)

* fix(agent): settle-time rescue tracks real delivery instead of a count offset (#1249)

* fix(persistence): migrate owner_material to oss_key and drop legacy asset_id (#1250)

* docs(readme): surface the 1.0.0 user guide badges at the top (#1253)

* fix(workbench): show newly created folders in the sidebar without reload (#1254)

* docs(readme): add the release version prefix and drop the opt-in framing

* fix(workbench): single-source the chat gutter so timeline and composer share a left edge (#1255)

The transcript and the composer each established their own column: their own
`px-*` gutter and their own `mx-auto w-full max-w-*` centering wrapper. Equal
padding values were never enough, because the two columns are centered inside
different containing blocks — the transcript's is a scroll container, whose
content box is narrower than the composer footer's by the scrollbar's width:

  transcript text left = pad + (pane - 2*pad - scrollbar - measure) / 2
  composer box  left   = pad + (pane - 2*pad             - measure) / 2

The padding cancels out of the difference and what remains is `-scrollbar/2` at
every padding value, so the transcript sat half a scrollbar to the left of the
composer and tuning the two paddings against each other could not move it.

The column is now established once, by the nearest common ancestor of both
(`chatColumn`), and the scroll viewport and the composer footer are siblings
inside it that add no horizontal inset of their own. The cap carries the gutter
on top of the 760px reading measure, so the text column keeps its width. The
handed-over question row drops the padding that indented it past the agent's
prose; framed rows keep their own inner padding, which is what a card's border
sitting on the column edge means.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

* fix(workbench): lock pane-embedded classroom to edit mode (#1256)

The workspace right pane painted the full learning chrome — speed control,
play button, learner avatars, mic bar — for a course the agent had just
created, then flipped to edit once the first scene landed.

resolveStageChromeMode treated playback as the DEFAULT branch for a hosted
classroom, so every shortfall fell into it: a course whose tab opens at
stage_link time has no scenes yet, so currentSceneId is null and
isHostedSceneEditable is false. A folded pane parked the playback root
behind the fold and cross-faded it out over the pane on unfold, and a
failed editor chunk dropped into playback permanently.

Lock it at the pane instead of defaulting per entry path:

- WorkbenchPanelProvider — the single element that mounts a classroom into
  the workspace — publishes editPinned (visible && !playback). Every entry
  path passes through it, so none of them decides.
- The hosted resolution can no longer degrade to playback. Start Learning
  (workbenchLearning, new input, split out from pane visibility) is the one
  door; everything else resolves between the neutral loading shell and edit.
- Stage's chrome dispatch is exhaustive on chromeMode, so the playback root
  is no longer the else-branch of a condition about the current scene.

No flicker: chromeMode is resolved during render, and preloadEditor now
answers synchronously (isEditorPreloaded) so a remount with the chunk
already registered paints edit on the first frame. A failed import is no
longer cached forever, so the lock cannot strand the pane.

Standalone classrooms keep their stored mode unchanged.

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-08-27 19:26:25 +08:00
wyuc 98904c1c5d fix(providers): three silent-behavior fixes from the provider audit (#1196)
* fix(extract): fail loudly instead of silently falling back to MinerU Cloud

A request that selects the self-hosted MinerU extractor without a
configured base URL used to fall back to MinerU Cloud whenever a cloud
API key was available, sending documents to a third party without the
operator's knowledge. The cloud fallback now requires an explicit
operator opt-in (ALLOW_MINERU_CLOUD_FALLBACK, default off, documented
in .env.example); otherwise the route answers a 422 that names what was
configured (self-hosted MinerU) and what was unavailable (its base
URL), and points at both remedies.

* fix(media): remove the selectable video provider that has no adapter

The Sora entry in the video provider catalog could be selected in the
settings UI and server config, but had no connectivity or generation
dispatch case, so choosing it failed only at execution time. A catalog
entry that cannot execute is worse than an absent one: the entry, its
type-union member, UI names/icons, store defaults, and the VIDEO_SORA
env mapping are removed. A new catalog test pins that every selectable
video provider dispatches to its own adapter in both switches.

* fix(storage): delete the obsolete no-op storage provider abstraction

getStorageProvider() unconditionally returned a NoopStorageProvider and
the module swallowed every operation into silence, so any caller
believing it had storage got neither bytes nor an error. No real caller
exists anywhere in the repo (only lib/storage/client.ts, a separate
module with a documented null contract and a live caller, remains). The
dead entry point, its type file, and the no-op provider are deleted; a
test pins the removal and that the real client upload helper is kept.
2026-08-27 11:49:23 +08:00
LING DUAN 146e164141 feat(whiteboard): add destructive runtime operations (#1173)
* feat(whiteboard): add destructive runtime operations

* fix(whiteboard): preserve additive exact replay results

* fix(whiteboard): support legacy code line ids
2026-08-27 10:06:44 +08:00
wyuc e15780835a feat(media): convert legacy references to allocated asset ids (#1101)
Lands epic #1007 part 2(c): the app-side reference converter, the `audioUrl`
removal, and the `DSL_VERSION` bump as one delivery unit.

`convertDocumentAssetRefs` walks a loaded document (slide canvases, whiteboards,
video-manifest keys, speech actions) and rewrites legacy handles to allocated
pool ids: placeholders and `audioId`s with local bytes are ingested, a co-present
`audioUrl`/`audioId` pair collapses to one asset, a definitively dead URL
converts to an emptied reference, and a transient failure keeps both handles for
a later retry. Unavailable bytes leave the document untouched for a later open,
and a converted document returns by identity with no writes.

Conversion runs lazily on document open and at fetch time for server-generated
classrooms, with conversion and the first document save sharing the per-stage
document lock: once the document commits it owns every allocation, and every
failure exit rolls its pass ledger back. Legacy URL probes are bounded by a
per-probe timeout and a shared 60-second pass budget.

`SpeechAction.audioUrl` is removed from the DSL and every consumer reads the
converted shape; the server classroom generator keeps its derived-id + serving-URL
pair as an explicitly typed pre-conversion transport, consumed before persistence.
`DSL_VERSION` becomes 0.2.0 with the first real ladder entry, and
`@openmaic/dsl` goes to 0.9.0 per the release rule.

Deferred follow-ups are tracked in #1129: production principal derivation with
document/asset ownership aligned, conditional document writes, and hoisting the
aggregate probe budget into the export and video-timeline paths.

Refs #1007
2026-08-15 17:38:04 +08:00
PercyandPercy b8bba7653e feat(courses): add folder grouping (#1005)
* feat(courses): add folder grouping behind a feature flag

Group courses into user-created folders on the home page. Folders are
device-local organization metadata kept in the existing IndexedDB
database (new folders + course-to-folder mapping tables, Dexie v16);
the course document aggregate owned by the DocumentStore is untouched.

- Create / rename (inline) / delete folders (keep or remove members)
- Move a course between folders via a hover menu
- Navigate into a folder with a breadcrumb back to all courses
- Search flattens the list, annotating each course with its folder
- Deleting a course cleans up its folder membership
- All UI strings internationalized across 9 locales
- Gated behind NEXT_PUBLIC_ENABLE_COURSE_FOLDERS (default OFF)

* test(courses): update db mocks and version assertion for folder tables

The folder feature adds the `stageFolders` table to the deletion cascade
and bumps the Dexie schema to v16. Update the affected test db mocks to
include the new table and bump the version assertion accordingly.

* fix(courses): stop course click-through when selecting from the move menu

The move-to-folder menu is rendered inside the course card's clickable
container. Selecting a folder item could let the click event reach the
card's onClick (opening the course) because only the trigger button
stopped propagation. Stop propagation on pointerdown for the trigger
and on click for every menu item so selecting a destination never opens
the course.

* fix(courses): open a dialog for the move-menu new-folder entry

The move-to-folder menu's inline "new folder" input never worked: a Radix
DropdownMenu is modal, so a raw <input> inside it cannot keep focus —
Radix closes the menu the instant the input is focused, dropping the
field before anything can be typed. Move the new-folder entry out of the
menu: it now asks the caller to open the existing NewFolderDialog and,
on confirm, moves the requesting course into the freshly created folder.

* feat(courses): drag-to-file folders and stacked cover thumbnails

Per review feedback, make folders feel complete:

- Drag a course card onto a folder tile to file it there. The tile turns
  into a clear drop target (ring + overlay) while a drag is over it. The
  hover 📂 menu remains as the accessible fallback for keyboard/touch.
- Replace the placeholder folder icon with a stable stack of up to three
  member course covers (most recently updated frontmost). Empty folders
  keep the folder icon; the name and course count are always visible.

* feat(courses): refine folder cover stack to a tidy fanned layout

Tune the folder-tile cover stack per review: front cover centered and
upright, rear covers peek out from alternating sides with a slight tilt
and reduced opacity, soft shadow and hairline ring. Reads as a neat pile
of course covers rather than an exaggerated fan.

* fix(courses): address review — dialog mount, empty-list, rename validation, partial-delete refresh, breadcrumb dedup

Per review (wyuc, CHANGES_REQUESTED):

1. Mount NewFolderDialog/DeleteFolderDialog outside the collapsible Recent
   subtree so they are reachable while it is collapsed; the New-folder
   button now expands the section before opening the dialog.
2. Keep the Recent/folder surface alive when the course list is empty so
   folders remain reachable and a first folder can be created.
3. Enforce folder-name validation (width + uniqueness) on rename as well
   as create, at the storage boundary (FolderNameError) and in the UI.
4. Refresh authoritative state on folder-delete both success and failure,
   so a partial "remove" failure does not leave stale cards/counts.
5. Drop the duplicated folder breadcrumb from the top section header;
   keep a single navigation breadcrumb in the content area.

Add focused storage tests covering rename validation, membership writes,
both deletion modes, and partial-failure propagation.

* fix(courses): address 2nd review — folder-view layout, drop highlight, validation parity, a11y, i18n

Per review (wyuc, CHANGES_REQUESTED on 9f77686f):

P1 — folder view layout: opening a folder compacts the hero and surfaces
the library content; the centered header shows a single path
"Recent > Folder name"; the empty-folder state sits directly below it;
clicking Recent returns to the root grid. The duplicate content
breadcrumb is dropped (kept only for search).

P2 — correctness & a11y:
- Clear the folder drop highlight on every drag exit (dragenter counter)
  and gate it on the text/stage-id payload.
- Duplicate-name check in the dialog is now case-insensitive, matching
  the storage boundary; FolderNameError is mapped to specific messages.
- Renames report the actual submitted width, not a hardcoded 0.
- createFolder/renameFolder run read-check-write in one read-write
  transaction so the uniqueness invariant cannot race across tabs.
- The move-menu trigger is focus-visible and pointer-coarse reachable
  (visible on touch / keyboard), not hover-only.

Extra:
- Empty library (no courses, no folders) shows a dedicated hint instead
  of the search-empty string.
- Translate all newly added folder strings across ja/ko/pt/ru/ar, fix
  Simplified-Chinese text in zh-TW, and add the emptyLibraryHint key.

* fix(courses): address 3rd review — ungate folders, fix empty-library hero, stabilize the bar

Per review (wyuc, CHANGES_REQUESTED on 19729038):

P1 — ship folders unconditionally: remove NEXT_PUBLIC_ENABLE_COURSE_FOLDERS,
the isCourseFoldersEnabled helper, the .env.example entry, and every
flag-on/flag-off UI branch. Folder metadata is always loaded; create,
move, drag, and folder navigation are always available. The IndexedDB
v16 schema stays intact.

P1 — full-screen landing hero only when the library is truly empty: the
hero uses min-h-[calc(100dvh-8rem)] only when there are zero courses AND
zero folders. A `hydrated` flag waits for both async loads before
selecting the layout, so folders arriving from storage do not flip the
hero from full-screen to compact.

P2 — geometrically stable centered bar: the Recent bar gets a fixed
height (h-9) so entering/leaving a folder (which toggles the New-folder
action and the folder path) does not shift the search/import controls.

* fix(courses): single stable library action bar across root, folder, and empty states

Per review (wyuc, CHANGES_REQUESTED on 860a1170):

P2 — remove the duplicate floating import controls. The hero section
rendered a second Import Classroom / PPTX cluster whenever the course
list was empty, duplicating the Recent bar's actions and floating above
it as the hero switched layout modes. Import now lives only in the
Recent action bar.

P1 — keep folder creation reachable for a truly empty library. The
Recent section is now always rendered after hydration (not gated on
having courses or folders), so a new user with zero of each can still
create the first folder or import. The empty-library hint renders below
the single stable action bar.

Invariant: one library action bar across root, folder, and empty
states; state changes alter the path and enabled actions only.

* chore: trigger CI after ready-for-review

* fix(courses): inherit folder context when importing from inside a folder

Per review (wyuc, CHANGES_REQUESTED on 37be4716):

[P1] Courses imported from inside a folder were silently placed at the
root. The import contract now carries the new stageId to the success
callback; the page captures the active folder when the file picker opens
(not when the async import resolves) and files the imported course into
that folder before the list refresh, so the card appears immediately and
the folder count increments. Root imports remain ungrouped. A failed
folder assignment surfaces an explicit error toast instead of silently
falling back.

* fix(courses): stable hero on folder delete, lightweight delete menu, breadcrumb count, empty-name validation

Per review (wyuc, CHANGES_REQUESTED on 5e12984f) + QA findings:

P1 — deleting the last folder must not expand the hero. The full-screen
landing hero is a first-visit treatment only: a session-scoped
"librarySeen" flag latches true once the library bar renders, so the
hero stays compact across all subsequent create/delete transitions.

P2 — replace the heavy two-card delete dialog with progressive disclosure.
Empty folder: an inline confirmation overlay on the card tile (matching
the course-delete pattern), with the empty-folder copy. Non-empty
folder: a compact dropdown beside the delete icon — "Delete folder only"
(courses move to unfiled) executes directly; "Delete folder and N
courses" opens a lightweight destructive confirmation. The full modal is
gone.

QA fixes:
- Breadcrumb count is now contextual (total at root, in-folder count
  inside a folder) instead of always showing the global total.
- Renaming a folder to empty/whitespace shows a "name cannot be empty"
  error and shakes, instead of silently exiting edit mode.

* fix(courses): cross-review cleanup — dead i18n keys, missing translations, delete-overlay reset

Post-commit cross-review (leak audit PASS, wyuc 19/19 PASS) found:

- Remove 6 dead i18n keys left over from the removed two-card delete
  dialog (deleteFolderDesc, deleteFolderUngroupTitle, etc.) across all
  9 locales.
- Translate all remaining English folder strings in ja/ko/pt/ru/ar
  (newFolderTitle, folderNameLabel, folderCreate, deleteFolderTitle,
  etc.).
- Fix zh-TW: convert ~17 simplified-Chinese folder strings to
  Traditional (新增資料夾/建立/刪除/etc.).
- Delete the orphaned "feature flag" comment (flag was removed earlier).
- Close the inline delete-confirm overlay before the async delete, so a
  failure leaves the card interactive instead of stuck behind the
  backdrop.

* fix(courses): clear drop highlight on drag end, map limit error in dialog

Two minor findings from cross-review:

- Escape-cancelled drags may not fire dragleave on every folder target,
  leaving a highlight ring. The course card now dispatches a
  'course-drag-end' window event on dragEnd (fires for both normal drop
  and Escape cancel); folder cards listen and clear their drop state.
- FolderNameError kind 'limit' (thrown at the storage boundary when
  FOLDER_COUNT_LIMIT is reached in a cross-tab race) now maps to the
  specific folderCountLimit message in the dialog instead of falling
  through to a generic hint.

Also fixes an SSR hydration mismatch: librarySeen is now initialized
to false and read from sessionStorage in useEffect (not in the
useState initializer).

* fix(courses): atomic folder removal, always-compact hero, no-cover placeholder

Per review (wyuc, CHANGES_REQUESTED on 470f5fea):

P2 — close the orphan-membership race in 'remove' mode. deleteFolder now
captures members, deletes the folder row, and clears all memberships in
ONE transaction BEFORE the course-deletion cascade. The folder is gone
from the moment the cascade starts, so a concurrent setStageFolder
(which checks existence in its own transaction) rejects the assignment.

P2 — remove the first-visit full-screen hero. The librarySeen flag
caused a visible layout jump on refresh (SSR renders full-screen, then
the effect reads sessionStorage and switches to compact). The hero is
now always compact (mt-[10vh]); no sessionStorage, no hydration
mismatch, no geometry regression.

P3 — distinct no-cover fallback for non-empty folders. A folder with
courses but no cached thumbnails now shows a neutral stacked-card
placeholder instead of the empty-folder icon.

Merged with latest main; no conflicts.

---------

Co-authored-by: Percy <percy@PercydeMacBook-Pro.local>
2026-08-10 17:56:56 +08:00
fc66cc0603 feat(runtime): add learner whiteboard RuntimeStore foundation (#1075)
* feat(runtime): add whiteboard RuntimeStore foundation

* Potential fix for pull request finding 'Comparison between inconvertible types'

Co-authored-by: Copilot Autofix powered by AI <223894421+github-code-quality[bot]@users.noreply.github.com>

* fix(runtime): reject invalid whiteboard appends before commit

* fix(runtime): preserve special JSON keys during canonical clone

* Potential fix for pull request finding 'Invalid prototype value'

Co-authored-by: Copilot Autofix powered by AI <223894421+github-code-quality[bot]@users.noreply.github.com>

* feat(runtime): add minimal learner whiteboard mutation

---------

Co-authored-by: Copilot Autofix powered by AI <223894421+github-code-quality[bot]@users.noreply.github.com>
Co-authored-by: wyuc <wang-yc24@mails.tsinghua.edu.cn>
2026-08-09 12:32:28 -04:00
ceb05adb41 feat(media): allocate generated assets through the registry (#1007 part 2, step b) (#1039)
* feat(media): establish shared asset ownership primitives

Introduce global browser asset-pool ownership, asset-reference collection, stage reclamation planning, and lease-based URL access. Carry allocated media identity through storage and generation boundaries with regression coverage.

* fix(media): enforce safe resolution across every consumer

Route image, video, thumbnail, presentation, and video-export consumers through one resolution state machine. Prevent opaque allocated or generated references from reaching render and export sinks, with fallback and ownership tests.

* fix(media): protect document-owned assets across mutations

Allocate pool bytes before compatibility writes and document commits, then roll back uncommitted generations safely. Preserve document ownership across edits, retries, imports, speech generation, scene changes, and stage deletion.

* fix(media): scope retries and tighten ownership guard

Scope retries to the target scene and slide and refuse ambiguous shared-reference mutations. Expand retry rendering coverage and keep direct pool URL resolution behind the shared lease owner.

* fix(storage): avoid nested lock during stage cleanup

Execute prepared reclamation plans against an explicitly deleted document so the compatibility cascade cannot re-enter the per-document lock. Cover deletion of stage-owned media rows even when the document has no references.

* refactor(media): confine reclamation to stage deletion

Remove inline pool and compatibility-row cleanup from element, speech, scene, and audio replacement flows. Keep whole-stage reclamation behind explicit stage ownership, preserve stage-less legacy audio rows, and document deferred document-truth sweeping.

* fix(media): close retry and resolution gaps

Restore shared source tasks after successful forks, scope retries across both whiteboard locations, and wait for parallel TTS workers before rollback. Resolve background media through import, rendering, and PPTX export paths while keeping retry controls visible over last-good bytes.

* test(media): execute the consumer safety matrix

Replace source-substring checks with resolver seam execution across all six UI consumers, stage hydration, and both exporters. Pin each rollback layer independently and harden the ownership guard against aliased pool imports.

* chore(packages): publish the additive DSL field

Bump the DSL patch version for the optional speech-action field. Keep the transitional reclamation policy app-owned and document the legitimate transaction rollback removals there.

* fix(media): make retry rollback task-safe

Delay allocation task re-keying until final document reconciliation succeeds, restore shared source tasks on failed forks, and require exact stage-whiteboard targets before falling through from a missed scene.

* fix(media): clear private assets and refresh leases

Delete the asset-pool database during the confirmed local-data wipe. Notify the app lease layer after same-id replacement so mounted consumers re-resolve current bytes without reaching into storage internals.

* test(media): pin closure safety guards

Exercise the CSS allocation boundary, unfiltered legacy-row ownership, delete-and-undo byte survival, and real distinct consumer seams. Restore the video-only manifest overwrite condition and share the direct video resolution hook across both element variants.

* test(media): narrow rollback element assertion

Narrow the reconciled slide element to an image before checking its source so the rollback regression remains type-safe under the full root compiler configuration.

* fix(media): close lease refresh races

Gate the first batch publication by unique resolved refs, then publish every replacement snapshot without mutating the prior React state object. Serialize invalidation behind pending releases, evict rejected refreshes, and register replacement observation at the pool boundary.

* fix(media): reopen pool after clear failures

Always evict the singleton once its store has been closed, including blocked and failed database deletion paths. Report blocked deletion as deferred and prove a later write uses a fresh live store.

* fix(media): isolate shared retry progress

Track forked regeneration under the selected element until it receives a fresh asset identity, leaving the shared source task and bytes untouched. Surface targeted failures through renderer task lookup and skip the redundant fork reconciliation lock.

* fix(media): close final asset retry gaps

Keep blocked asset clears fail-loud until a successful retry, with actionable settings guidance.

Clear failed shared-fork state across durable and live key spaces, and pin renderer lookups, lease publication identity, and committed-ref rollback protection.

* fix: preserve actionable retry failures

Localize the blocked cache-clear recovery hint across every supported locale and pin the deferred-error mapping.

Retain durable fork failure rows while retries run, deleting them only after successful generation so unstructured failures survive reload.

* fix(media): hydrate legacy stored video thumbnails

Home-page recent-video thumbnails regressed for legacy Dexie mediaFiles
rows keyed by gen_vid placeholders: the reworked hydration resolved the
row's bytes through the sealed resolver but never surfaced the stored
blob (and its poster) as object URLs for the preview card, so the CI
recent-video-thumbnail e2e specs found no visible element.

Hydration now materializes legacy stored video rows into blob URLs for
both the element src and poster while keeping the resolver invariants:
opaque refs still never reach a DOM src, and concrete addresses are
never blanked. Unit pins cover the seam so the vitest suite catches this
class without a browser.

* fix(media): resolve sole restored legacy video

Classroom playback restored tasks by exact document media references. Legacy gen_vid references can outlive the key used by the one persisted video row, leaving the player on a placeholder even though bytes were restored.

Select the sole completed stage video only for legacy sequential refs after exact and reconciled matches. Keep exact failures authoritative, refuse ambiguous candidates, and cover success, ambiguity, and failure precedence in unit tests.

* fix(media): scope legacy video recovery

Decide restored legacy video recovery once from the complete document and record it through the shared task lookup consumed by playback, editing, and resolved slides.

Keep ambiguous documents as placeholders, apply the same decision to thumbnail hydration, and preserve exact failure precedence.

* fix(media): exclude claimed video recovery tasks

Model restored legacy recovery as a two-pass match across document video elements and task rows. Remove tasks claimed by exact, targeted, or placeholder lookup before applying the sole-candidate fallback, and cover the ownership/cardinality matrix.

* fix(media): unify video element resolution

Centralize source, task, poster, and legacy recovery decisions for every video consumer. Ensure direct URLs win over opaque refs and play_video waits on element-targeted retry tasks.

* refactor(media): route legacy recovery through resolver

Let document-aware consumers request legacy video recovery through the unified element binding API, keeping thumbnail hydration on a single decision path.

* fix(media): preserve import refs and prefer pool bytes

Recognize unambiguous extensionless relative media addresses during classroom import. Resolve allocated export and thumbnail assets from the shared pool before falling back to lagging compatibility rows.

* fix(export): preserve concrete video sources

Route PPTX video elements through the shared media binding resolver so an unresolved opaque reference cannot replace a playable source. Complete browser and persisted-store cleanup when asset-pool deletion is deferred, while retaining distinct hard-failure behavior.

* fix(media): fork retries without exclusive ownership

Enumerate logical asset owners across every persisted document before allowing global pool replacement. Thread explicit targets through fresh-id rewrites and cover cross-document aliases plus unreadable ownership.

* fix(media): guard global asset reclamation

Share a fail-closed persisted-document liveness check between stage deletion and retry replacement. Preserve cross-document pool aliases while deleting stage-owned compatibility rows and cover enumeration failures.

* fix(media): cover complete slide asset references

Route slide media traversal through a shared mutable slot contract so backgrounds participate in export, thumbnail hydration, collection, and rewrite lifecycles. Snapshot complete surviving-document refs once per reclamation and preserve manifest-only owners while retaining fail-closed behavior.

* fix(media): preserve exclusive retry asset ids

Allow targeted retries to replace exclusively owned pool assets in place. Keep shared and unprovable ownership paths on fresh allocations, and pin production-shaped retries plus compatibility-row cleanup.

* fix(media): revalidate asset bindings at completion

Recheck repository-wide ownership before replacing generated media and fork scoped retries when exclusivity changed. Route video export selection through the unified resolver and keep concrete posters independent of task state.

* fix(media): count unflushed owners and broadcast replacements

The completion-time exclusivity proof read only the persisted document, but
slide duplication updates the Zustand aggregate synchronously and schedules
persistence behind a debounce. A retry finishing inside that window saw a
single persisted owner and replaced the bytes behind a reference the
duplicate also held. The proof now also counts owners in the live stage
snapshot when that snapshot represents the stage being retried, so an
unflushed duplicate forks instead.

Same-id replacement notifications were realm-local, so a second tab showing
the same classroom kept its lease pinned to the superseded blob URL. The
notification now travels over a BroadcastChannel; each receiving realm runs
its own observers against its own pool, so a spoofed message can at most
force a re-resolve. A missing or failing channel never fails the replacement.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(media): bind replacement listeners and spare shared audio rows

A realm that only renders never sends a replacement, so binding the channel
from the sender path left passive tabs deaf to peers. Binding now happens
where the observer is registered, when the asset-pool module loads, and the
receiving realm resolves its own pool lazily so a cleared or unavailable
pool degrades to the next resolve instead of throwing.

Observer notifications ran under Promise.all, so a rejection surfaced after
BrowserAssetStore.replace had already committed and turned a durable success
into a reported failure. They are settled individually now; the callback is
wrapped because a synchronous throw would otherwise escape before allSettled
sees the array.

audioFiles rows are keyed globally by audioId, so deleting a stage removed
the sole row for an id a surviving document still referenced — playback and
both export paths read that table directly and cannot fall back to the
preserved pool blob. Rows are now filtered against surviving references,
while a failed enumeration still withholds only the irreversible pool
removal.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(media): serve replaced bytes from the pool everywhere

Unknown survivor liveness deleted every planned audioFiles row. Those rows
are keyed globally by audioId, and playback plus both export paths read the
table directly, so losing one is as irreversible for them as removing the
pool entry. Unknown liveness now preserves the rows too, leaving bounded
garbage for a later pass that can prove exclusivity.

The earlier pool-first change covered PPTX, video collection and thumbnail
hydration but missed classroom ZIP export, which still serialized the stale
compatibility row after a lagged same-id replacement, shipping media the
classroom no longer renders.

Auditing every direct reader of the media and audio tables surfaced the same
gap in playback: speech regeneration also replaces bytes under a stable id
and does not roll the pool back when the compatibility write fails, so the
player kept serving superseded narration. It now resolves the pool first and
falls back to stored rows for legacy and imported audio.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(audio): replace exclusively owned speech clips in place

regenerateSpeechAudio accepted the action's audioId but always passed
undefined as replaceAssetId, so regenerating an exclusively owned
pool-backed clip allocated a new asset every time, rewrote the action and
orphaned the previous pool entry and compatibility row until stage
reclamation — contradicting the stable-id path generateAndStoreTTS already
implements for media.

Ownership is now established before synthesis, and the rule itself moved to
the shared reference module so media retries, poster replacement and speech
regeneration consume one implementation instead of restating it. An
exclusively owned clip keeps its id and has its bytes replaced; a shared
clip, a legacy id with no pool entry, or unprovable ownership still gets a
fresh allocation so other holders keep their audio.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(media): drop the import left behind by the ownership move

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(media): resolve audio pool-first and fence peer realms

Stable-id TTS regeneration commits replaced narration to the pool before the
audioFiles mirror write, so a failed mirror leaves the row stale. AudioPlayer
already resolved pool-first, but audioObjectUrl, collectAudioFiles and the
video timeline dependencies still read Dexie directly and would serve the
superseded clip. All allocated-audio readers now share one resolver, with
Dexie kept as the fallback for legacy and imported rows.

The exclusivity proof modelled unflushed owners in the active realm only, so
another tab duplicating the same asset during its save debounce could still
be observed as a single owner and have its bytes replaced globally. A peer's
pending state cannot be read across realms, so presence is probed instead:
any realm holding the stage forces the fork path.

A deferred asset-pool deletion no longer reloads the page. The database is
still on disk and the guidance asks the user to close the other tab and
retry, which the reload discarded. The decision moved into a shared helper so
the rule is pinned rather than living inline in the component.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(media): fail closed when presence cannot be probed

The presence helper documented that an unanswerable probe must count as a
peer, but every unavailable path — no BroadcastChannel, a constructor that
threw, a send that failed, and the window before the pool's asynchronous
binding completes — returned false, so the ownership proof cleared a single
local owner and replaced globally shared bytes in place.

Probing now returns present, absent or unknown, and only a probe that was
actually sent and went unanswered is absent; the ownership decision treats
unknown exactly like present. The pool declares its binding intent
synchronously so a probe issued during the load-time window waits for the
bind instead of concluding that presence is unavailable, and releases that
gate if the import fails.

Coverage reaches the write boundary: with presence unknown, a
production-shaped targeted retry forks to a fresh id instead of calling
replace, and the original bytes stay intact for a peer's unflushed owner.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(dsl): bump to 0.6.3 after the release dedupe took 0.6.2

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(i18n): add the deferred-clear guidance to fr-FR

The locale landed on main after this branch added the key, so the alignment
check flagged it as the one missing translation.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
Co-authored-by: 杨慎 <117187635+cosarah@users.noreply.github.com>
2026-08-06 18:49:34 +08:00
wyuc ad30061b6e fix(chat): harden runtime sync, legacy migration, and record validation (#1050)
* fix(chat): harden runtime sync and legacy migration

* fix(storage): validate HTTP runtime appends client-side

* fix(storage): harden runtime validation and legacy guards

* fix(chat): skip malformed legacy messages
2026-08-05 06:23:45 -04:00
b4e3145c90 feat(roster): single-source the generated agent roster on the stage document (#994)
* feat(roster): single-source the generated agent roster on the stage document

The generated agent roster used to live in two places at once: the stage
document carried generatedAgentConfigs, while a per-stage IndexedDB mirror
(db.generatedAgents) was the actual read authority — and the only home of
each agent's voice binding. The split caused real losses: voices vanished on
device switches, exports, and shares (the mirror never travels), the load
path trusted a device-local table over the portable document, and roster
edits persisted through a bespoke debounce with no beforeunload flush.

Make the stage document the single source of truth:

- Contract: add optional voiceConfig/voiceDesign to GeneratedAgentConfig in
  @openmaic/dsl (VoiceDesign moves into the contract; the app re-exports it).
  Additive optional fields — not a breaking serialized-shape change, so
  DSL_VERSION stays put per the version policy.
- Writes: remove every mirror writer (registry saveGeneratedAgents, the
  stage store's debouncedSaveAgents bypass, classroom-load hydration, import
  direct writes). setStageAgents now only marks the stage dirty for the
  shared persistence scheduler plus synchronous in-memory registry/selection
  mirrors; generation and import embed the roster on the stage.
- Reads: classroom load hydrates the registry from the loaded stage's
  generatedAgentConfigs; export reads the stage roster directly.
- Lazy migration: the mirror is retained read-only. On load, a roster (or
  voice fields) missing from the document is backfilled from the mirror,
  committed onto the in-memory stage, and persisted by the next flush —
  idempotent, and gated on the current stage id after every await so a
  classroom switch cannot leak a stale roster into the registry.
- Deletion: deleteStageData discards the deleted stage's pending
  persistence work so a queued flush cannot resurrect the document.
- Round trip: classroom ZIP manifests now carry the voice fields, so
  export/import preserves agent voices.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(roster): harden deletion, migration, selection, and ingress paths

Review hardening on top of the roster single-source change:

- Deletion vs in-flight persistence: deleting a stage now registers a
  session-scoped tombstone (lib/utils/deleted-stages.ts) before the cascade
  starts. Every persistence landing point checks it — the scheduled flush and
  the departing-stage retry drop their snapshots, and the aggregate/incremental
  saves re-check under the document lock, including the incremental path's
  full-save fallback that would otherwise rebuild a deleted document from the
  in-memory snapshot. A deletion that fails before the document is removed
  lifts the tombstone so the still-existing stage keeps persisting.
- Lazy migration termination: a fruitless legacy-mirror probe (nothing to
  merge — e.g. server-generated rosters, which are voiceless by design) is
  remembered per stage for the session instead of re-querying the mirror on
  every load forever. Successful merges are not memoized so a failed flush is
  retried on the next load. Docstrings now state the real lifecycle.
- Selection provenance: setStageAgents no longer overwrites a user-set agent
  selection with the full roster. Stage-derived selections still track the
  roster; a user-set auto selection is only narrowed to surviving agents
  (newcomers are not auto-selected, the user-set flag is untouched), and a
  user-set preset selection is left alone — matching restoreAgentSelection.
- Mirror hygiene: deleteStageData clears the deleted stage's rows from the
  legacy roster mirror (best-effort), and the mirror table's docs now describe
  its actual access pattern (migration reads + deletion hygiene).
- Registry persistence: the agent registry's persist snapshot partializes
  generated agents out of localStorage, making the stage document the roster's
  only durable home; the rehydration merge filter remains as defense in depth.
- Ingress validation: imported manifest voice fields are structurally
  validated (malformed bindings dropped per field, the agent survives), and
  applyGeneratedAgentsToRegistry validates providerId against the known TTS
  provider registry instead of casting, treating unknown providers as "no
  bound voice".
- Contract: drop the speculative AgentVoiceConfig.modelId — an audit of every
  roster producer, current and historical, found none that ever emitted it.
  Contract fields are added once a producer exists, not before.

New tests cover the deletion tombstone at both the store and storage layers
(including the missing-destination full-save pin and the lock-race re-check),
the fruitless-probe memo, the selection-provenance matrix, persistence
exclusion of generated agents, and voice-field sanitization on import.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(roster): close tombstone lifecycle, probe-memo, and selection-intent gaps

Second hardening pass over the deletion/migration/selection fixes:

- Tombstone lifecycle: a deleted classroom id can legitimately come back
  (deletion is client-side only). Explicit (re)creation points now lift the
  tombstone — server-copy restore in applyClassroomStageAndScenes and backup
  restore in importDatabase — so edits after a same-session restore persist
  again, while in-flight flushes stay fenced.
- Failed deletion now restores the dirt it discarded: deleteStageData
  snapshots the pending map plus the in-flight round before tombstoning, and
  re-marks it when the delete fails with the document still present.
- Legacy-mirror probe memo now distinguishes a FAILED read (null, retried on
  the next load) from a confirmed-empty mirror (memoized), so a transient
  IndexedDB error cannot suppress migration for the whole session.
- Incremental save tail (currentScene KV row + chat sessions) is tombstone-
  fenced like the aggregate path, and both paths re-check the tombstone
  immediately before every write, with comments scoped honestly for the
  lock-free (no Web Locks) best-effort LWW fallback.
- Roster-edit selection mirror: an empty intersection now falls back to the
  full roster and clears the user-set flag (matching restoreAgentSelection's
  length > 0 gate), and a user-set selection that equals the pre-edit full
  roster keeps tracking the roster wholesale so newcomers are not excluded
  forever by the AgentBar auto-toggle snapshot.
- TTS/ASR provider lookups use Object.hasOwn instead of `in`/bare indexing,
  so prototype-chain keys ('toString', 'constructor', ...) no longer pass the
  provider whitelist or resolve to Object.prototype members.
- Documented the per-tab limit of the tombstone set.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(roster): replace the boolean deletion tombstone with a deletion-generation model

A boolean tombstone cannot express the deletion lifecycle once a deleted id
legitimately comes back (server-copy restore on revisit, backup import): after
the restore lifts the flag, a pre-delete flush still in flight is
indistinguishable from a post-restore edit and can overwrite the restored
document with pre-delete content. Two rounds of point fixes kept leaking
variants of this race, so this restructures the fence instead.

deleted-stages.ts now keeps a per-stage monotonic deletion epoch plus a
deleted flag. markStageDeleted bumps the epoch; unmarkStageDeleted clears
only the flag and never rewinds the epoch. Every persistence path captures
the epoch at the moment it captures the data it will write (flush-round
snapshot, departing-stage snapshot, aggregate save entry) and re-checks
"captured epoch is current AND not deleted" immediately before each
individual write. Invariants:

- A write captured before a deletion can never land after it, even when a
  same-id restore has lifted the deleted flag (the captured epoch is
  permanently stale).
- A write capturing data after a restore observes the current epoch and
  persists normally.
- A failed deletion lifts only the flag; the restored pending changes are
  re-queued as descriptors, so their flush re-captures current store state
  under the current epoch and is neither dropped nor a stale replay.

Also fixed in the same restructuring:

- Incremental tail writes (currentScene, chats) each re-check independently;
  a delete landing while the first tail write is awaiting now fences the
  chat write instead of riding the earlier check.
- Deleting a classroom evicts it from the warm in-memory store, and
  loadFromStorage treats a warm-but-deleted stage as not loaded (discarding
  the ghost), so navigating Back to a deleted classroom reaches the
  server-restore path instead of rendering an editable ghost whose every
  edit is silently dropped.
- importDatabase records each document's pre-import deletion state and
  reinstates it when a failed import rolls the document back, so an
  outstanding flush cannot recreate the rolled-back document.
- Docstrings on the failed-deletion restore path now state that only dirt
  captured before the deletion is restored; edits refused during the
  deletion window are not part of the snapshot.

New tests cover the epoch invariants at the storage layer (pre-delete rounds
dropped across restores on the incremental, aggregate, and tail paths;
post-restore captures landing; strictly increasing epochs), the scheduler
layer (departing-retry delete+restore straddle; restored dirt flushing under
the current epoch), the warm-ghost restore driven through the real
loadFromStorage, and the import lift/rollback pair.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(deletion): report fenced drops, gate ghost eviction on cascade settlement

Edge hardening around the deletion-epoch fence; the epoch model itself is
unchanged.

- An epoch-stale drop is now reported, not disguised: saveStageData /
  saveStageDataIncremental return a distinct 'stale-dropped' status (entry
  check, every in-mutation re-check, and both tail-write re-checks) instead
  of a shape identical to success. saveToStorage reacts by skipping all
  success bookkeeping - no chatSnapshot rebind to a snapshot that never
  landed, no pending-dirt clearing - and returns false, keeping its
  "true means verified write" contract honest. persistDirtySnapshot keeps
  its existing (correct) semantics explicitly: a drop has nothing to retry.
- Warm-ghost eviction is settlement-gated: the deletion cascade records an
  in-flight bit (begun by deleteStageData, settled in its finally), and the
  deleted-warm branch of loadFromStorage keeps the warm state while the
  cascade is unsettled - a delete can still fail before removing the
  document, in which case the warm state plus the restored pending dirt is
  the only copy of the pre-delete edits. Once settled, the ghost discard
  and server-restore path behave as before.
- Read-side landing re-check: loadFromStorage re-checks isStageDeleted
  after hydration, immediately before set(), mirroring the write-side
  "re-check immediately before landing" discipline - a lock-free
  mid-cascade read can no longer re-materialize a ghost classroom.
- clearStoreForDeletedStage re-checks isStageDeleted at eviction time, so a
  same-id restore completing inside the cascade-tail window is never wiped.
- capturedEpoch is now a required parameter on both storage entry points:
  the default (call-time capture) silently reopened the capture-point/
  validation-point split for future callers; the type system now enforces
  the pairing. All production callers already passed it explicitly.

New tests cover the dropped-status contract, the cascade in-flight
lifecycle (including both failure shapes), keep-warm during an unsettled
delete with end-to-end pending restore after a failed delete, settlement-
then-eviction on success, the eviction guard against a tail-window restore,
and the read-side hydration re-check.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(deletion): settle the deleted-warm load by awaiting the cascade outcome

Hardening around the deletion settlement gate introduced previously; the
epoch model is unchanged.

- The deleted-warm branch of loadFromStorage no longer completes the load
  while the deletion cascade is undecided (which exposed a classroom whose
  edits were refused without being restorable, and left a successful
  deletion's eviction with no follow-up reload). It now parks on a per-stage
  settlement promise (stageDeletionSettled) and branches on the outcome:
  a failed delete keeps the warm, restored classroom; a successful delete
  falls through to a full cold load so the server-restore path recovers the
  route; a navigation that moved on during the park is stopped by the load
  token guard. The eviction (clearStoreForDeletedStage) deliberately stops
  claiming a new load token so the parked load stays current - ghost
  re-materialization is fenced by the read-side deleted re-checks instead.
  No deadlock: a parked load holds no document lock, and the cascade never
  waits on a load.
- 'stale-dropped' now propagates through the debounced flush path:
  persistDirtySnapshot returns the sentinel instead of an empty failure set,
  and startFlushRound skips the chatSnapshot rebind on it (mirroring
  saveToStorage) - a falsely rebound baseline would let later chat saves
  no-op-skip chats that never landed and corrupt cross-tab conflict
  detection. Pending-map clearing keeps its empty-failure semantics
  (restored descriptors mint fresh revisions).
- The cascade in-flight state is a counter (begin++/settle--) instead of a
  boolean, and deleteStageData is single-flight per stage (a concurrent
  second call joins the first cascade), so overlapping deletions can never
  expose an undecided cascade as settled.
- The StaleDroppedSave docstring no longer overpromises: a tail
  saveCurrentScene can land after the cascade's clearCurrentScene; the
  orphaned cursor row is ignored by the load path rather than removed by
  the cascade.

Net +8 tests: overlapping-cascade counting, settlement-promise resolution
(success and failure), concurrent double-delete single-flight join, the
parked mid-cascade Back in both outcomes plus the navigation-away guard,
and the fenced flush round keeping an honest chat baseline end-to-end.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(deletion): re-verify store identity on keep-warm resume, re-run joined deletes after a mid-cascade restore

Three hardening refinements on the deletion/persistence fencing:

- loadFromStorage's parked keep-warm branch now mirrors the success
  path's store-identity guard: if a tokenless writer (e.g. a database
  import) replaced the stage during the park, a failed deletion falls
  through to the cold load instead of reporting another classroom as
  the kept warm state. The ghost-discard block is correspondingly
  gated on the deleted flag so the fall-through does not mislabel a
  surviving document as a ghost.

- deleteStageData: a joined call carries its own deletion intent. When
  the first cascade fulfills but a same-id restore lifted the deleted
  flag in the meantime, the joined caller now runs one fresh cascade
  against the restored document instead of reporting the pre-restore
  outcome. Exactly one re-check per call (no recursion); a rejected
  first cascade still propagates unchanged to every joined caller.

- Narrowed the failed-delete restore-ownership comments: the restore
  covers only the pending map plus an in-flight flush round's dirt;
  a departing-stage snapshot is outside that capture and is fenced
  and dropped by design. Comment-only, no behavior change.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(roster): gate deleted-warm handling on stage identity, keep an explicit empty roster authoritative

Final-audit fixes, three items:

- loadFromStorage keyed its deleted-warm settlement handling (park /
  keep-warm / ghost discard) behind the scenes.length > 0 shortcut, so a
  zero-scene warm ghost of a deleted classroom skipped it entirely: the
  cold load found no document, the ghost stayed in the store, and the
  classroom loader's server-fallback gate (!getCurrentStage()) never ran
  — the silently-uneditable trap this branch exists to close, in its
  scene-less form. Deletion handling now keys on stage identity alone,
  before any scene-count shortcut; the non-deleted warm skip still
  requires scenes.

- rosterNeedsLegacyFallback collapsed "roster field absent" (document
  predates roster persistence) with "explicitly persisted empty roster".
  A future writer persisting [] on a device whose read-only mirror still
  held stale rows would have its emptied roster resurrected on every
  load. The full-lift branch now triggers only when the field is absent
  (undefined); an explicit [] is authoritative and never probes the
  mirror. No current writer produces [], but the read side no longer
  depends on that invariant.

- The GeneratedAgentConfig docstring claimed the voice fields are not a
  breaking change; that only holds for this codebase's tolerant
  structural validators. The generated stage.schema.json sets
  additionalProperties: false, so consumers pinning an older published
  schema artifact reject documents carrying the new fields. The
  docstring now states both sides honestly.

Tests: a zero-scene deleted warm ghost is restored through the real
loadFromStorage (fails pre-fix), an explicit empty roster does not
resurrect stale mirror rows (fails pre-fix), and the
rosterNeedsLegacyFallback unit matrix covers undefined vs [].

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(deletion): re-queue aggregate persistence when a failed deletion is recovered

Direct aggregate saves (saveToStorage: generation completion, server-restore
hydration) run outside the pending map and the flush round, so the deletion
path's pre-delete dirt snapshot cannot describe them. When a deletion bumped
the epoch while such a save was in flight, the save was correctly fenced
('stale-dropped') — but if the deletion then failed before removing the
document, the recovery only re-queued the snapshotted scheduler descriptors.
The fenced aggregate-only content stayed memory-only with no retry anywhere,
and a later reload lost it.

The failed-deletion restore now merges a full re-mark of the aggregate
(structure / stage / outline / currentScene / chats plus a descriptor for
every current scene) into the recovery set, still guarded on the store
holding the stage. Because the flush recaptures the CURRENT store state under
the CURRENT epoch, this necessarily carries whatever the fenced aggregate
save held — and, for the same reason, edits refused by the scheduler during
the deletion window, which previously stayed memory-only as well; the scope
docstrings now say so instead of declaring them excluded.

New integration coverage drives the real store scheduler and the real storage
layer end to end: a genuinely fenced in-flight saveToStorage (generation
completion) plus a pre-removal deletion failure ends with the completion flag
durable on the next flush; a deletion-window scene edit survives the same
way; and a successful deletion re-marks nothing (control). Both recovery
tests fail against the previous restore logic.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Co-authored-by: 杨慎 <117187635+cosarah@users.noreply.github.com>
2026-07-27 14:39:19 +08:00
be3d313bc3 feat(document): dirty-set incremental saves + operation-level flush (#983)
* feat(document): dirty-set incremental saves + operation-level flush + unload protection

Every store mutation used to trigger a debounced FULL aggregate rewrite —
editing one word rewrote the whole document, scene switches during playback
rewrote it for nothing, and concurrent editors clobbered each other at
document granularity. Mutations now mark precise dirt (scene:<id> /
structure / stage / outline / currentScene / chats): scene edits flush as
version-gated putScene, stage metadata as putStage, structure and outline
changes keep the full-save path, and currentScene/chats no longer touch
the document at all. Dirt entries are revisioned so a mutation landing
during a write is never accidentally cleared, and failed writes retain
their dirt for retry. flushStageSave() drains the debounce single-flight;
agent apply operations await it so each AI edit is durable before its tool
result returns; hidden-page/unload kick a best-effort immediate flush.
The PendingChange type stays neutral about the change unit so a future
operation-log backend can replace the flush internals at one seam.

Co-authored-by: Codex <codex@openai.com>

* fix(document): incremental-persistence review round — bypass-proofing, true drain, no stranded dirt

Structural mutations carry the cursor they changed (and cursor resolution
validates membership on load, so a stale device cursor can never resurrect
a deleted scene). The Stage API now wraps the real store in a guard that
diffs pre/post state and centrally classifies every raw write — whiteboard,
element, canvas, and action-engine mutations can no longer bypass dirty
tracking, and new API namespaces inherit the guard by construction (with a
lint-like inventory test). flushStageSave is a bounded true drain: an
awaiter whose mutation landed mid-flight loops until its own dirt is
durable. setStage hands the old document's dirt to a departing flush
instead of discarding it, and a failed flush always reschedules. Mixed
dirty batches (scene+stage/outline) use the atomic full save — the
incremental fast path is homogeneous-only. Chat-half failures keep the
chats dirt for retry without changing the tolerated-split outer semantics.

Co-authored-by: Codex <codex@openai.com>

* fix(document): reviewer round — drain covers caller dirt, full-path chat retry, stamping unification

flushStageSave's early-return now only fires when the failing round's
snapshot actually covered the caller's dirt — an agent edit landing beside
an in-flight failing round is written before the promise resolves, keeping
the tool-result durability guarantee unconditional. The full-save path
reports chat failures the same way the incremental path does (chats dirt
survives and reschedules; the tolerated-split semantics are unchanged).
The departing-stage flush retries once and its doc-comment states the
best-effort semantics honestly. Stage and scene stamping are extracted and
shared — fixing the incremental putScene branch silently dropping the
order ?? index normalization the full path applies — and the dead outline
mark in setGenerationComplete is gone.

Co-authored-by: Codex <codex@openai.com>

---------

Co-authored-by: Codex <codex@openai.com>
Co-authored-by: 杨慎 <117187635+cosarah@users.noreply.github.com>
2026-07-24 00:00:14 -04:00
d0d227424b feat(document): complete the document-persistence cutover — stage/scene/outline onto DocumentStore (#965)
* feat(runtime): persist quiz attempts in RuntimeStore

* fix(runtime): coalesce quiz draft snapshots

* fix(runtime): recover concurrent quiz attempts

* fix(runtime): handle quiz completion races

* fix(runtime): commit quiz review atomically

* fix(runtime): dedupe concurrent quiz writes

* fix(runtime): drop stale quiz drafts

* fix: harden quiz runtime review recovery

* fix: serialize quiz attempt identity

* feat: read quiz state from runtime store

* fix: persist quiz retries before resetting

* fix: preserve authoritative quiz outcomes

* fix: preserve legacy quiz retries during cutover

* fix: reconcile legacy quiz snapshots safely

* fix: drain rollover quiz write queues

* fix: drain completed quiz retry queues

* fix: reuse concurrent quiz retries

* fix(quiz): preserve drafts across abrupt reloads

* fix(quiz): recover empty retry sessions

* fix(chat): abort stalled runtime state reads

* fix(quiz): expose queued phases to readers

* fix(quiz): retain concurrent writer tails

* fix(quiz): canonicalize retry branches

* fix(quiz): keep retry rollovers monotonic

* fix(quiz): validate skipped retry siblings

* fix(quiz): close read cutover races

* test(classroom): cover legacy quiz summaries

* fix(quiz): reset async consumers on scene changes

* fix(quiz): close scene transition windows

* test(pbl): cover launch freshness guards

* fix(quiz): close cutover concurrency gaps

* fix(quiz): harden retry and context freshness

* fix(quiz): reject malformed legacy answers

* fix(quiz): validate legacy answer values

* test(quiz): cover legacy multi-answer migration

* fix(merge): retire dead ChatRequestTemplate.storeState after quiz read cutover

Main's three call sites built static storeState blocks that runAgentLoopFn
never consumed (it always rebuilds fresh state via getStoreState); the quiz
read cutover replaced that callback with the async two-phase RuntimeStore
read, leaving the template field with zero consumers. Drop it.

* feat(storage): conform HTTP/PG backends and reference server to RuntimeAppendOptions

The quiz write path's expectedLastSeq / sessionTransition / RuntimeAppendConflictError
semantics existed only in the browser backend; server-backed deployments would
silently accept conflicting appends and leave completed sessions active. Forward
the options over the wire, detect conflicts atomically under the PG transaction,
map them to HTTP 409 RUNTIME_APPEND_CONFLICT, and rematerialize the typed error
client-side so quiz retry logic works across every backend.

Co-authored-by: Codex <codex@openai.com>

* fix(chat): Pi single requests build storeState via the async runtime quiz read

Pi bypasses runAgentLoop's per-iteration getStoreState and serializes the
request template straight to /api/chat/pi, which rejects bodies without
storeState. Extract the fresh-snapshot builder (async RuntimeStore quiz read
with the scene-transition guard) and call it on the Pi path too.

* ci: whitelist the runtime-data-cutover integration trunk for PR checks

* feat(runtime): playback cutover — cursor in KV, discussion facts in RuntimeStore (#956)

* feat(runtime): cut playback over to the runtime layer — cursor in KV, facts in RuntimeStore (#869)

The fourth and last runtime family. Consumed-discussion facts become
append-only 'playback' records folded into a set at read (at-least-once
appends, no conflict machinery); the resume cursor is device-scoped
last-write-wins KV per the amended #779/#869 split. sessionStorage keeps
same-tab priority; KV takes over on fresh tabs/reloads. The dead Dexie
playbackState machinery is retired, with a one-time lazy migration of any
legacy row (cursor half + facts half) before deletion, and stage deletion
now clears both the KV cursor and any unmigrated legacy row.

Co-authored-by: Codex <codex@openai.com>

* test(runtime): include playbackState in the stage-delete db mock

---------

Co-authored-by: Codex <codex@openai.com>

* fix(playback): persist discussion facts on every consumption path (#957)

* fix(playback): persist discussion facts on every consumption path (final-review P0+P1s)

- The engine now publishes a progress snapshot the moment a discussion is
  consumed (join / skip / unselected-agent auto-skip). onProgress otherwise
  fires before the discussion action executes and a discussion is the scene's
  last action, so the fact never reached persistence.
- Reads fold records across ALL playback sessions in the learner partition
  (mergeLearner deliberately preserves same-kind sessions from both keys).
- Legacy migration appends only not-yet-durable facts, so an interrupted
  migration resumes instead of dropping the tail.
- recordConsumedDiscussion reports durability; the component drops failed ids
  from its observed set so a later progress tick retries (at-least-once).

* test(e2e): live verification of the playback persistence chain

Seeds a deterministic stage straight into the Dexie DB, starts the lecture
via the canvas overlay, and asserts the full chain: discussion auto-skip
appends a discussionConsumed record to maic-runtime, the device cursor lands
in KV, and both survive a fresh browsing context (empty sessionStorage).

* refactor(playback): consumed-discussion state is volatile by decision — cursor-only persistence (#959)

Product ruling on #869's fourth family: playback learner state is front-end
ephemeral UX, not learner data. A re-shown proactive card auto-skips, joined
discussions' content already lives in chat runtime records, and no replay
export / analytics consumer exists — so durable facts bought nothing over
in-memory + same-tab sessionStorage. Drop lib/playback/runtime.ts and the
RuntimeStore facts wiring; keep the device-scoped KV resume cursor (the half
with real UX value), the engine's consumption-time progress snapshot (cursor
freshness), and the legacy Dexie retirement (cursor half migrates, row
deletes, consumed ids are dropped).

* ci: whitelist the document-cutover integration trunk for PR checks

* feat(document): widened-stage contracts + app document seam (#860 follow-up, PR1) (#961)

Package: MaicDocument/DocumentStore/StageRow gain a TStage parameter
(defaults keep existing users unchanged), BrowserDocumentStore accepts an
injectable validateStage, and a version-guarded putStage closes the rename
read-modify-write race — same current-version gate as putScene.

App: lib/document/ seam — AppDocument types (currentSceneId is device
state, not document data, and the app stage validator rejects it), a
four-kind scene validator (slide/quiz delegate to the DSL; interactive/pbl
validate envelope + discriminant binding only), and pure legacy
canonicalizers (type rebound from content.type, singular whiteboard →
whiteboards, outline envelope). No consumer switches off Dexie yet.

Co-authored-by: Codex <codex@openai.com>

* feat(document): stage-storage cutover + locked lazy migration (PR2) (#962)

* feat(document): cut stage/scene persistence over to DocumentStore with locked lazy migration (PR2)

stage-storage now persists through the lib/document seam: aggregate
saveDocument with a mandatory outline envelope (omission means deletion in
the contract; ordinary saves fall back to the stored envelope), lazy
per-stage migration under a Web Lock (destination authoritative, one
coherent legacy snapshot, save-verify-marker, legacy rows retained
read-only; no-lock environments read legacy without migrating),
currentSceneId in device KV, rename via version-guarded putStage, and a
list that merges legacy-only stages until they migrate. stageOutlines'
second write authority folds into the document service, making the final
scene set and generationComplete one atomic commit.

Co-authored-by: Codex <codex@openai.com>

* fix(document-store): relocate the persistence seam out of lib/document

lib/document/ is the server-side content-extraction domain (sharp, cloud
SDKs); exporting the persistence seam from its barrel dragged node-only
modules into the client bundle and broke the Turbopack build. The seam now
lives in lib/document-store/ with its own barrel, and the extraction barrel
is restored. Client-only guards become capability probes (indexedDB /
localStorage presence) so injected node test environments keep working
while a true server render still fails loud.

* fix(document-store): no-lock write classification + lock-order inversion (PR2 fix round)

Lock order is now per-stage document lock → global runtime epoch (a save
never waits on a document lock while occupying the shared epoch, which
deadlocked against fair-queued maintenance). Without Web Locks, mutation
classifies instead of refusing wholesale: destination-backed and genuinely
new documents accept the product's established lock-free/LWW risk, while a
legacy-only document stays read-only so two authorities cannot fork —
matching the chat-cutover-era acceptance suite, whose save assertions now
verify through the public API instead of legacy Dexie rows.

Co-authored-by: Codex <codex@openai.com>

* style: prettier on document-store seam files

---------

Co-authored-by: Codex <codex@openai.com>

* feat(document): cut secondary consumers over to the document seam (PR3) (#963)

ZIP classroom/video exports read stage metadata through the seam; classroom
import builds one canonical aggregate under the per-stage lock and writes
canonical 'whiteboards' (fixing the import-side singular-alias defect the
manifest never had); backups become versioned document aggregates that
finally include outline envelopes, while old {stages, scenes} backups are
accepted through the legacy canonicalizers; clearDatabase now clears
maic-documents and the seam's KV keys so clear-cache cannot strand
documents; deleteStageWithRelatedData is deprecated in favor of
deleteStageData. Four e2e seeders target maic-documents directly;
classroom-interaction stays legacy-seeded to exercise real-UI lazy
migration.

Co-authored-by: Codex <codex@openai.com>

* fix(document): final-review hardening — restore pre-images, honest markers, clear-race exclusion (3 P1 + 2 P2) (#964)

- Backup rollback restores pre-existing destination documents (and imported
  current-scene KV values) from captured pre-images instead of deleting them
- The skip-migration path only writes its marker after reconciling the
  legacy snapshot against the authoritative destination; a divergent
  snapshot logs and stays discoverable instead of being falsely certified
- Migration's destination write enrolls in the global shared storage epoch
  (per-stage -> global order), so clearDatabase's exclusive epoch can no
  longer race a lazy migration into resurrecting a document
- listStages drops legacy entries whose snapshot vanished mid-merge

Co-authored-by: Codex <codex@openai.com>

* fix(review): P3 pair from cross-review — scene-id boundary + sessionTransition 400 (#966)

* fix(review): scene-id boundary for quiz context + 4xx for malformed sessionTransition (P3 pair)

Review findings on #955: didActiveSceneRemainUnchanged compared the active
scene by object identity, so a store update reallocating the scene during
the async quiz read dropped the learner's graded answers from that turn's
request — the scene id is the real boundary. The records route now
classifies a malformed sessionTransition as a validation failure instead of
letting the store's throw surface as a 500.

* fix(playback): superseded-engine cursor guard + migration write-window recheck

Second-vendor review of the #959 shrink (requested after the cross-review
noted it had single-vendor coverage) found: an engine orphaned by a scene
switch during async lecture resume could pass the idle-only recheck, be
resurrected, and publish its old scene's progress over the new scene's
debounced cursor — the resume continuation now requires identity with the
installed engine, and onProgress drops snapshots from superseded engines.
The legacy cursor migration also rechecks KV immediately before its write
so a concurrent tab's newer cursor cannot be overwritten and orphaned by
the legacy-row delete.

Co-authored-by: Codex <codex@openai.com>

---------

Co-authored-by: Codex <codex@openai.com>

* fix(review): approval follow-up P3 nits (#967)

* release: v0.3.1

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(review): approval P3 nits — ISO gate on sessionTransition, dead mocks, corrupt-timestamp guard

- The records route's sessionTransition guard now requires an ISO
  updatedAt (isIsoTimestamp), matching the sibling PATCH /status route
- Dead vi.mock factories for the deleted playback-storage module dropped
- A corrupt legacy playback timestamp falls back to 'now' instead of
  wedging migration into a permanent re-throw that disabled resume

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

* fix(document): backup covers no-lock legacy courses; clears fence stale saves (review P1s) (#968)

Backup assembly appends read-only canonicalized aggregates for legacy-only
stages the lazy migration could not persist (no-Web-Locks environments) —
courses visible in the app can no longer vanish from an export. A
device-scoped storage generation now fences document mutations: clears bump
it inside their exclusive section, and any save or migration commit that
entered before the clear re-reads it inside the shared epoch and fails loud
instead of repopulating a wiped store.

Co-authored-by: Codex <codex@openai.com>

* fix(document): review round 2 — legacy-only chat backup coverage + full-width generation fence (#972)

Backups now enumerate runtime chat sessions for every exported document,
not just store-backed ones — a legacy-only course's chat history (the chat
and document cutovers are independent seams) no longer drops out of the
export; the runtime read injects an empty legacy chat store since legacy
rows are collected by direct table reads, which also keeps the export
working without Web Locks. The storage-generation fence now guards every
mutating store method, with the exclusive-epoch delete cascades passing
storageSharedLockHeld so the guard cannot self-deadlock against their own
hold.

---------

Co-authored-by: Codex <codex@openai.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 23:18:24 +08:00
3eea9dc542 feat(runtime): complete the #869 learner-data cutover — quiz + playback onto RuntimeStore (#955)
* feat(runtime): persist quiz attempts in RuntimeStore

* fix(runtime): coalesce quiz draft snapshots

* fix(runtime): recover concurrent quiz attempts

* fix(runtime): handle quiz completion races

* fix(runtime): commit quiz review atomically

* fix(runtime): dedupe concurrent quiz writes

* fix(runtime): drop stale quiz drafts

* fix: harden quiz runtime review recovery

* fix: serialize quiz attempt identity

* feat: read quiz state from runtime store

* fix: persist quiz retries before resetting

* fix: preserve authoritative quiz outcomes

* fix: preserve legacy quiz retries during cutover

* fix: reconcile legacy quiz snapshots safely

* fix: drain rollover quiz write queues

* fix: drain completed quiz retry queues

* fix: reuse concurrent quiz retries

* fix(quiz): preserve drafts across abrupt reloads

* fix(quiz): recover empty retry sessions

* fix(chat): abort stalled runtime state reads

* fix(quiz): expose queued phases to readers

* fix(quiz): retain concurrent writer tails

* fix(quiz): canonicalize retry branches

* fix(quiz): keep retry rollovers monotonic

* fix(quiz): validate skipped retry siblings

* fix(quiz): close read cutover races

* test(classroom): cover legacy quiz summaries

* fix(quiz): reset async consumers on scene changes

* fix(quiz): close scene transition windows

* test(pbl): cover launch freshness guards

* fix(quiz): close cutover concurrency gaps

* fix(quiz): harden retry and context freshness

* fix(quiz): reject malformed legacy answers

* fix(quiz): validate legacy answer values

* test(quiz): cover legacy multi-answer migration

* fix(merge): retire dead ChatRequestTemplate.storeState after quiz read cutover

Main's three call sites built static storeState blocks that runAgentLoopFn
never consumed (it always rebuilds fresh state via getStoreState); the quiz
read cutover replaced that callback with the async two-phase RuntimeStore
read, leaving the template field with zero consumers. Drop it.

* feat(storage): conform HTTP/PG backends and reference server to RuntimeAppendOptions

The quiz write path's expectedLastSeq / sessionTransition / RuntimeAppendConflictError
semantics existed only in the browser backend; server-backed deployments would
silently accept conflicting appends and leave completed sessions active. Forward
the options over the wire, detect conflicts atomically under the PG transaction,
map them to HTTP 409 RUNTIME_APPEND_CONFLICT, and rematerialize the typed error
client-side so quiz retry logic works across every backend.

Co-authored-by: Codex <codex@openai.com>

* fix(chat): Pi single requests build storeState via the async runtime quiz read

Pi bypasses runAgentLoop's per-iteration getStoreState and serializes the
request template straight to /api/chat/pi, which rejects bodies without
storeState. Extract the fresh-snapshot builder (async RuntimeStore quiz read
with the scene-transition guard) and call it on the Pi path too.

* ci: whitelist the runtime-data-cutover integration trunk for PR checks

* feat(runtime): playback cutover — cursor in KV, discussion facts in RuntimeStore (#956)

* feat(runtime): cut playback over to the runtime layer — cursor in KV, facts in RuntimeStore (#869)

The fourth and last runtime family. Consumed-discussion facts become
append-only 'playback' records folded into a set at read (at-least-once
appends, no conflict machinery); the resume cursor is device-scoped
last-write-wins KV per the amended #779/#869 split. sessionStorage keeps
same-tab priority; KV takes over on fresh tabs/reloads. The dead Dexie
playbackState machinery is retired, with a one-time lazy migration of any
legacy row (cursor half + facts half) before deletion, and stage deletion
now clears both the KV cursor and any unmigrated legacy row.

Co-authored-by: Codex <codex@openai.com>

* test(runtime): include playbackState in the stage-delete db mock

---------

Co-authored-by: Codex <codex@openai.com>

* fix(playback): persist discussion facts on every consumption path (#957)

* fix(playback): persist discussion facts on every consumption path (final-review P0+P1s)

- The engine now publishes a progress snapshot the moment a discussion is
  consumed (join / skip / unselected-agent auto-skip). onProgress otherwise
  fires before the discussion action executes and a discussion is the scene's
  last action, so the fact never reached persistence.
- Reads fold records across ALL playback sessions in the learner partition
  (mergeLearner deliberately preserves same-kind sessions from both keys).
- Legacy migration appends only not-yet-durable facts, so an interrupted
  migration resumes instead of dropping the tail.
- recordConsumedDiscussion reports durability; the component drops failed ids
  from its observed set so a later progress tick retries (at-least-once).

* test(e2e): live verification of the playback persistence chain

Seeds a deterministic stage straight into the Dexie DB, starts the lecture
via the canvas overlay, and asserts the full chain: discussion auto-skip
appends a discussionConsumed record to maic-runtime, the device cursor lands
in KV, and both survive a fresh browsing context (empty sessionStorage).

* refactor(playback): consumed-discussion state is volatile by decision — cursor-only persistence (#959)

Product ruling on #869's fourth family: playback learner state is front-end
ephemeral UX, not learner data. A re-shown proactive card auto-skips, joined
discussions' content already lives in chat runtime records, and no replay
export / analytics consumer exists — so durable facts bought nothing over
in-memory + same-tab sessionStorage. Drop lib/playback/runtime.ts and the
RuntimeStore facts wiring; keep the device-scoped KV resume cursor (the half
with real UX value), the engine's consumption-time progress snapshot (cursor
freshness), and the legacy Dexie retirement (cursor half migrates, row
deletes, consumed ids are dropped).

* fix(review): P3 pair from cross-review — scene-id boundary + sessionTransition 400 (#966)

* fix(review): scene-id boundary for quiz context + 4xx for malformed sessionTransition (P3 pair)

Review findings on #955: didActiveSceneRemainUnchanged compared the active
scene by object identity, so a store update reallocating the scene during
the async quiz read dropped the learner's graded answers from that turn's
request — the scene id is the real boundary. The records route now
classifies a malformed sessionTransition as a validation failure instead of
letting the store's throw surface as a 500.

* fix(playback): superseded-engine cursor guard + migration write-window recheck

Second-vendor review of the #959 shrink (requested after the cross-review
noted it had single-vendor coverage) found: an engine orphaned by a scene
switch during async lecture resume could pass the idle-only recheck, be
resurrected, and publish its old scene's progress over the new scene's
debounced cursor — the resume continuation now requires identity with the
installed engine, and onProgress drops snapshots from superseded engines.
The legacy cursor migration also rechecks KV immediately before its write
so a concurrent tab's newer cursor cannot be overwritten and orphaned by
the legacy-row delete.

Co-authored-by: Codex <codex@openai.com>

---------

Co-authored-by: Codex <codex@openai.com>

* fix(review): approval follow-up P3 nits (#967)

* release: v0.3.1

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(review): approval P3 nits — ISO gate on sessionTransition, dead mocks, corrupt-timestamp guard

- The records route's sessionTransition guard now requires an ISO
  updatedAt (isIsoTimestamp), matching the sibling PATCH /status route
- Dead vi.mock factories for the deleted playback-storage module dropped
- A corrupt legacy playback timestamp falls back to 'now' instead of
  wedging migration into a permanent re-throw that disabled resume

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: Codex <codex@openai.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 15:28:04 +08:00
wyuc 34448beb6c feat(storage): server-backed runtime — pluggable backend seam, HTTP contract, Postgres backend, reference server (#939) (#946)
* ci: run PR checks against the runtime-server-backend integration branch (#939)

* feat(storage): RuntimeStore HTTP contract + HttpRuntimeStore client (#939 Part B) (#940)

* feat(storage): RuntimeStore HTTP contract + HttpRuntimeStore client (#939 Part B)

- documented JSON HTTP contract for every RuntimeStore operation
  (server-assigned seq, learnerKey derived from auth — never trusted
  from the request, machine-readable error codes, idempotency notes)
- HttpRuntimeStore client with injected fetch + auth headers hook;
  session reads (including createSession responses) migrate forward
  on the runtime line so an older server cannot leak stale envelopes
- conformance test server bridging the contract onto the browser
  backend; full runRuntimeStoreContract green over HTTP plus error
  mapping cases

* fix(storage): harden HTTP runtime backend after cross-review (#939 Part B)

Cross-review fixes:
- appendRecord gates payloads through assertJsonValue: fail loud on
  values JSON cannot represent (Map, Date, NaN, nested undefined, NUL
  strings) instead of silently mangling them in transit; payload
  domain documented in the contract
- appendRecord/listRecords responses validate via validateRuntimeRecord
  (server-assigned seq is no longer trusted verbatim) and listRecords
  sorts by seq like listSessions already sorted defensively
- request headers no longer require an ambient Headers constructor
  when fetch is injected
- conformance server classifies errors structurally (existence checks,
  DSL validators, version stamps) instead of regex-sniffing messages
  that interpolate caller-controlled ids
- router preserves empty path segments so empty-key calls keep browser
  no-op semantics instead of shifting onto other routes
- stray runtimeDslVersion/seq in request bodies are ignored (store-
  assigned wins), matching the browser reference; docs updated
- loopback integration test exercises the real listening server
- docs state the conformance server is test-only; auth-derived
  learnerKey is Part D's reference server

* fix(storage): round-2 cross-review hardening for the HTTP backend (#939 Part B)

- json-value guard rewritten: additionally rejects -0, symbol-keyed and
  non-enumerable own properties, and non-index own properties on arrays;
  U+2028/U+2029 are accepted again (they round-trip through JSON per
  RFC 8259 — rejecting them lost legitimate pasted text)
- conformance server classifies racing duplicate creates as 409 via a
  structural post-check, gates payloads and merge learner keys as 400
- segment() rejects '.'/'..' ids the URL layer would fold away
- list responses must be arrays and mergeLearner's moved must be a
  finite number, else a typed MALFORMED_RESPONSE error

* fix(storage): round-3 cross-review hardening for the HTTP backend (#939 Part B)

- json-value guard: NUL is rejected in object keys too, and unpaired
  UTF-16 surrogates are rejected in string values and keys (jsonb
  refuses both; other JSON stacks corrupt lone surrogates to U+FFFD)
- typed storage errors survive non-object 200 responses instead of
  degrading into TypeErrors on .id access
- mergeLearner's moved must be a non-negative integer
- conformance server classifies missing/non-object request bodies as
  400 VALIDATION_FAILED
- createSession/appendRecord gate the full init envelope, not only the
  payload (stray Date/undefined properties, NUL in ids)

* fix(storage): round-4 convergence fixes for the HTTP backend (#939 Part B)

- envelope JSON gate tolerates explicitly-undefined optional anchors
  (sceneId: undefined behaves like omission, matching the browser)
- body-carried identifiers reject '.'/'..' so nothing persists that
  the URL layer cannot later address; conformance server mirrors it
- mergeLearner keys pass the JSON-domain gate on client and server
- json-value guard v4: rejects enumerable accessors (validation/serialize
  TOCTOU), Array subclasses and null-proto arrays, prototype-supplied
  array indices; sparse-array test now constructs a genuine hole

* fix(storage): round-5 convergence fixes for the HTTP backend (#939 Part B)

- undefined-stripping is limited to the DSL-declared optional anchors
  (sceneId/actionIndex/subAnchor); any other undefined member fails the
  JSON gate loud instead of being dropped silently
- json-value guard: array and object prototype checks are realm-agnostic
  (chain-shape instead of identity), so ordinary values from another
  realm are accepted while subclasses stay rejected; shared
  isLosslessJsonString predicate exported for SQL key guards
- conformance server merge route validates target-key addressability

* fix(storage): close the toJSON prototype channel in the JSON guard (#939)

toJSON is the single channel through which a prototype can alter JSON
output — prototype properties never serialize and own accessors are
already rejected — so refusing any value with a callable toJSON closes
prototype influence on serialization entirely, including prototypes
crafted to pass the realm-agnostic chain-shape check.

* fix(storage): probe toJSON via descriptor walk, not property read (#939)

Reading value.toJSON would execute an inherited accessor, letting a
stateful getter hide from validation and reappear at stringify time.
The probe now walks own descriptors up the prototype chain without
invoking any user code. Post-validation mutation of the caller's object
graph is documented as out of scope — it is equally unpreventable for
every other validated property.

* fix(storage): toJSON probe mirrors JSON.stringify semantics exactly (#939)

The own-most descriptor decides: absent is safe, a non-callable data
value is an ordinary shadowing member and is safe, a callable data
value is rejected, and an accessor is rejected because it cannot be
inspected without invoking it. No daylight remains between the guard
and the serializer on this property.

* feat(storage): PgRuntimeStore — Postgres runtime backend (#939 Part C) (#941)

* feat(storage): PgRuntimeStore — Postgres runtime backend over an injected queryable (#939 Part C)

- PgRuntimeStore implements RuntimeStore over a minimal injected
  Queryable (node-postgres and PGlite both satisfy it) — the package
  keeps zero runtime dependencies beyond @openmaic/dsl
- runtime_sessions / runtime_records schema exported as
  RUNTIME_PG_SCHEMA with idempotent ensureSchema()
- appends serialize per session via a session-row lock; MAX(seq)+1
  and the insert share one transaction, UNIQUE(session_id, seq) plus
  bounded retry backstop non-cooperating writers
- envelope semantics mirror the browser backend: version stamping,
  validation gates, migrate-on-read, fail-loud on future-stamped rows
- full runRuntimeStoreContract green on PGlite plus PG-specific cases
  (concurrent-append seq atomicity, ensureSchema and mergeLearner
  idempotence)

* fix(storage): require pinned transactions + JSON payload gate in PG backend (#939 Part C)

Cross-review fixes:
- withTransaction is now required; the BEGIN/COMMIT fallback is removed
  (on a pg Pool it spread BEGIN/body/COMMIT across different connections
  — no real transaction, leaked idle-in-transaction clients, broken
  mergeLearner atomicity; on a shared pinned client concurrent calls
  interleaved transactions)
- single-statement deletes no longer wrap in a transaction hook call
- appendRecord gates payloads through assertJsonValue: fail loud on
  values JSON cannot represent (Map, Date, NaN, nested undefined, NUL
  strings) instead of silently persisting something different
- append retry also covers 40001/40P01; READ COMMITTED assumption
  documented at the retry loop
- ensureSchema documented as create-only; redundant stage index dropped
- deterministic interleaving test proves the 23505 retry path; real
  PostgreSQL contract lane added (postgres:16 service workflow, pg
  driver suite skipped locally without PG_CONTRACT_URL)

* fix(storage): round-2 cross-review hardening for the PG backend (#939 Part C)

- json-value guard rewritten (shared with the HTTP backend): additionally
  rejects -0, symbol-keyed and non-enumerable own properties, and
  non-index own properties on arrays; accepts U+2028/U+2029
- storage-pg-contract workflow now triggers for the runtime-server-backend
  integration branch and fails loud (STORAGE_PG_CONTRACT_REQUIRED=1)
  when PG_CONTRACT_URL is missing instead of silently skipping
- loadSession distinguishes corrupt non-object rows from absent rows so
  getSession fails loud instead of reporting the session missing

* fix(storage): round-3 cross-review hardening for the PG backend (#939 Part C)

- json-value guard (shared): NUL rejected in object keys, unpaired
  UTF-16 surrogates rejected in values and keys
- createSession/appendRecord gate the full persisted envelope through
  assertJsonValue, not only the payload — stray Date/undefined
  properties and NUL in ids fail loud instead of silently diverging
  from the returned record or leaking raw 22P05
- real-PG lane covers a genuine 23505 conflict from a second
  connection and recovery after an aborted transaction
- retry-set asymmetry and mergeLearner's unbounded lock set documented

* fix(storage): round-4 convergence fixes for the PG backend (#939 Part C)

- NUL/lone-surrogate lookup and delete keys resolve to absent/no-op
  instead of leaking 22021 driver errors; setSessionStatus reports the
  session missing; mergeLearner from-key moves 0
- mergeLearner destination key passes the JSON-domain gate fail-loud
- envelope JSON gate tolerates explicitly-undefined optional anchors,
  matching the browser backend
- json-value guard v4 (shared) + tests for accessors, Array subclasses,
  prototype-supplied indices

* fix(storage): round-5 convergence fixes for the PG backend (#939 Part C)

- appendRecord pre-checks the session key like every other lookup path,
  so a NUL/lone-surrogate sessionId reports 'no session' instead of
  leaking a 22021 driver error
- the queryable-key predicate now structurally reuses the shared
  isLosslessJsonString export instead of restating the string rule
- undefined-stripping limited to the DSL-declared optional anchors
- json-value guard: realm-agnostic prototype checks (shared)

* fix(storage): close the toJSON prototype channel in the JSON guard (#939)

Shared guard change with the HTTP backend branch; adds the crafted
null-proto-prototype regression test. Both final-gate reviewers
independently converged on this same channel.

* fix(storage): probe toJSON via descriptor walk, not property read (#939)

Reading value.toJSON would execute an inherited accessor, letting a
stateful getter hide from validation and reappear at stringify time.
The probe now walks own descriptors up the prototype chain without
invoking any user code. Post-validation mutation of the caller's object
graph is documented as out of scope — it is equally unpreventable for
every other validated property.

* fix(storage): toJSON probe mirrors JSON.stringify semantics exactly (#939)

The own-most descriptor decides: absent is safe, a non-callable data
value is an ordinary shadowing member and is safe, a callable data
value is rejected, and an accessor is rejected because it cannot be
inspected without invoking it. No daylight remains between the guard
and the serializer on this property.

* fix(storage): conform HTTP/PG backends to the post-#926 RuntimeStore interface (#943)

The chat cutover (#926) added deleteAllRuntime() to the RuntimeStore
contract while the HTTP and Postgres backends were developed in
parallel against the pre-#926 interface. Implements the method on both
backends (single-statement wipe on PG via the FK cascade; DELETE
/runtime on the HTTP contract, documented as an operator-gated
administrative endpoint), restoring a green typecheck and contract
suite on the integration branch.

* feat(runtime): injectable RuntimeStore backend + learner-key provider (#939 Part A) (#944)

* wip(runtime): backend injection seam — pending gate verification

* fix(runtime): cross-review hardening for the storage injection seam

- stage-deletion IndexedDB probe applies only to the default browser
  backend; an injected store always receives deleteStageRuntime
- explicit kv argument takes precedence over the configured learner-key
  provider, matching the store seam's explicit-beats-global rule
- configured learner-key resolution is latched with in-flight dedup,
  mirroring the store singleton; identity changes require app-level
  handling
- factory retry semantics documented; seal errors explain the
  module-level bootstrap requirement; isRuntimeStorageConfigured()
  probe and a test-only reset added
- client-bootstrap-only contract documented (SSR/HMR caveats)

* fix(runtime): snapshot configuration and make the test reset complete

- configureRuntimeStorage copies the option fields so mutating the
  caller's object after configuring cannot swap the sealed backend or
  identity provider
- resetRuntimeStorageForTests now clears every latched consumer cache
  (store singleton, learner-key in-flight promise) via a reset-hook
  registry, so a reset-then-reconfigure test actually gets the new
  backend

* fix(runtime): reset also clears the default learner-key caches

resetRuntimeStorageForTests left defaultInFlight/defaultKv latched, so
a default-path test could leak its anonymous key or KV store into the
next test despite the documented full-reset promise.

* feat(storage): runtime reference server — auth-derived learnerKey (#939 Part D) (#945)

* wip(storage): reference server — pending deleteAllRuntime route + gates

* feat(storage): runtime reference server — auth-derived learnerKey enforcement (#939 Part D)

- createRuntimeHttpHandler(store, options) wires the documented HTTP
  contract onto any injected RuntimeStore over node http
- authenticate is required; every learner-scoped operation verifies the
  path/body learnerKey against the authenticated principal (403
  FORBIDDEN_LEARNER) — the client-supplied value is never trusted
- mergeLearner requires an explicit authorizeMerge grant and admin
  surfaces (stage cascade, DELETE /runtime) require authorizeAdmin;
  both default-deny
- runnable reference entry demonstrates a pg Pool withTransaction and
  bearer-token authentication, marked as demo-only
- contract suite green through HttpRuntimeStore -> listening reference
  handler -> PgRuntimeStore(pglite); security matrix tested (401/403
  paths, admin default-deny); threat model documented

* fix(storage): cross-review hardening for the reference server (#939 Part D)

- principal learnerKey is optional: admin/merge-only credentials no
  longer fabricate learner identity; learner-scoped routes 403 without
  ownership
- full session/record envelopes pass the JSON-domain gate at the
  handler, so NUL/lone-surrogate identifiers map to 400 instead of 500
- payload validation follows the injected store's validator map
  (options.payloadValidators) instead of imposing DSL defaults
- reference factory accepts authenticate/authorizeMerge/authorizeAdmin/
  payloadValidators overrides; docs no longer claim the factory binds
  to localhost; demo-impersonation warning hardened
- 500 responses carry a generic message; details go to the server log
- ownership checks precede version checks and unowned sessions read as
  404, closing existence/version oracles; cross-learner denial matrix
  tested per route
- merge/delete concurrency documented as linearizable-equivalent with
  the ownership re-check narrowed to the delete call

* fix(storage): align reference-server semantics with the store contract

- future-stamped sessions read and delete through unchanged; 409
  FUTURE_VERSION applies only to guarded writes (status, append, merge)
- check-then-write races reclassify structurally via a post-failure
  re-fetch: missing session 404, non-active session 400, never a
  message-sniffed or generic 500

* fix(storage): close the reference CLI's pg pool on startup failure

ensureSchema opens connections inside createReferenceRuntimeServer, so
a failed schema init or occupied port left the pool holding database
resources until its idle timeout.

* fix(storage): close the records-route existence oracle

cosarah's review point on #946: the records list answered 200 [] for an
absent session but 404 for another learner's, so the 404 leaked that an
id exists. Absent and foreign sessions now answer identically (404
SESSION_NOT_FOUND) and the HTTP client maps that code back to an empty
list, preserving the store contract's absent-lists-as-empty semantics.
Contract doc records the server MAY/SHOULD and the client MUST.
2026-07-17 16:15:57 +08:00
wyuc 65bf20a84b feat(runtime): cut chat sessions over to RuntimeStore (#926)
* feat(runtime): persist chat sessions in RuntimeStore

* fix(runtime): harden chat persistence ordering

* fix(runtime): protect cross-tab chat snapshots

* fix(runtime): compare structured chat values safely

* fix(runtime): preserve chat backup and reset semantics

* fix(runtime): restore imported chat snapshots

* fix(runtime): isolate chat load failures

* fix(runtime): make cache clearing lossless

* fix(runtime): normalize empty chat saves

* fix(runtime): serialize legacy chat migration

* fix(chat): serialize backup restoration

* test(chat): cover multi-stage restore locking

* fix(chat): coordinate fallback migrations across tabs

* fix(chat): harden cross-tab migration locking

* fix(database): retire abandoned chat lease schema

* fix(chat): preserve monotonic local edits

* fix(chat): protect unseen runtime sessions

* fix(chat): order lifecycle transitions monotonically

* fix(chat): serialize runtime maintenance

* fix(chat): order queued writes before maintenance

* fix(chat): preserve cross-version lock compatibility

* fix(chat): preserve streamed and backup data

* fix(chat): isolate empty no-lock saves

* fix(chat): isolate partial runtime snapshots

* fix(runtime): close cross-store cutover races

* fix(runtime): close remaining cutover races

* fix(chat): retain caller-visible conflict baseline

* fix(chat): preserve read-only legacy autosaves

* fix(chat): avoid restore lock inversion

* fix(runtime): enroll writes before maintenance

* fix(runtime): retain maintenance ordering

* fix(runtime): close restore and deletion races

* fix(chat): order partition queues within lock epochs

* fix(chat): preserve recovery and deletion intent

* fix(runtime): recover interrupted chat restores

* fix(backup): scope chat deduplication by stage

* fix(backup): stage chats by runtime partition

* fix(backup): clear staged chats with stages
2026-07-16 18:30:40 +08:00
wyuc 667f3b0c51 feat(runtime): device-anonymous learner identity + RuntimeStore app bootstrap (#869 Part C, step 1) (#885)
* feat(runtime): device-anonymous learnerKey + app RuntimeStore singleton (#869)

* feat(runtime): cascade stage deletion into the runtime store (#869)

deleteStageWithRelatedData now cascades into the runtime layer after its
Dexie transaction completes. The runtime data lives in a separate
IndexedDB database (maic-runtime), so it cannot join the transaction, and
the cascade goes through deleteStageRuntimeSafely — a helper that never
throws (warns with context instead): a broken or hung runtime DB must not
brick stage deletion in the main app DB. deleteStageRuntime is idempotent,
so a failed cascade can simply be retried.

Covered at the helper seam with a stub RuntimeStore (success + throwing);
the repo has no Dexie-in-node harness for database.ts and this change
does not invent one.

* fix(runtime): wire the live deletion path, serialize learner-key minting (#869)

Cross-review fixes on the C1 bootstrap:

- The runtime cascade was wired into deleteStageWithRelatedData, which has
  zero callers; the UI classroom-deletion flow goes through deleteStageData
  in stage-storage. Wire deleteStageRuntimeSafely into that live path too
  (after its Dexie work, same isolation rationale), and cover the wiring by
  running the real deleteStageData with its module deps mocked — the
  repo's established pattern for database-touching code.
- getLearnerKey minted twice under concurrency. Same-bundle callers now
  share one in-flight promise on the default path (failures are not
  cached), and every path re-reads after writing and returns the PERSISTED
  key, so a cross-tab race converges on the stored winner instead of
  keeping an orphaned local mint.
- Guard crypto.randomUUID with the house fallback pattern.
- Honest docs: the cascade comment no longer claims a retry path exists
  (orphaned rows are inert today; a startup sweep is deferred to Part C2),
  and both lib/runtime modules note they are client-only.

* fix(runtime): cross-tab mint lock and bounded deletion cascade (#869)

- Read-after-write alone still let a tab keep an orphaned learner key
  when its re-read landed before the other tab's write. Minting now runs
  under the Web Locks API ('maic:learner-key') where available: grants
  are mutually exclusive across tabs, the loser re-reads the winner's key
  inside its grant, and an existing key is never overwritten (so the
  per-tab memo stays safe). Without navigator.locks (older browsers,
  non-window contexts) the memo + read-after-write behavior remains, with
  the residual race named in a comment and accepted — it merely splits
  one anonymous learner's local history.
- deleteStageRuntimeSafely awaited without a bound, so a hung runtime
  IndexedDB could block the live deletion path — the exact failure the
  helper exists to isolate. The cascade now races a 5s timeout: on
  timeout it warns and resolves (orphaned rows stay inert), and the still
  -pending cascade carries a swallow handler so a late rejection cannot
  become an unhandled rejection.

* fix(runtime): probe for the runtime DB before cascading a stage deletion (#869)

deleteStageRuntimeSafely reached openDb() unconditionally, and opening
CREATES the maic-runtime database — so deleting a classroom on a device
that never wrote runtime data paid an open-or-create of a second
IndexedDB DB, and in degraded environments burned the full 5s bound for
zero cleanup value.

Probe first without creating: where indexedDB.databases() is available,
a missing maic-runtime entry returns immediately; where the probe API is
unavailable (older Firefox), fall through to the bounded cascade —
skipping there would strand real cleanup once Part C2 adds writers. The
probe shares the existing try/catch + timeout envelope, so a hanging
databases() cannot brick deletion either. The DB name is a module const
passed explicitly to BrowserRuntimeStore so probe and store can never
drift.
2026-07-09 14:54:21 +08:00