Commit Graph
5 Commits
Author SHA1 Message Date
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
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
bb8d4f30e7 feat(chat): add experimental Pi classroom runtime behind a flag (#914)
* feat(chat): add experimental Pi classroom runtime

* fix(chat): harden Pi whiteboard action sequencing

* style(chat): format session retirement flow

* style(playback): format async scene transition

* fix(chat): retire actions on session errors

* fix(chat): close Pi runtime lifecycle gaps

* fix(chat): avoid replaying historical whiteboard actions

* fix(chat): prevent Pi structured-output residue from leaking and inflating turns

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* fix(chat): expose whiteboard element/line ids and bound code-line context

Surface each element's id (and code line ids) in the Pi whiteboard context so
later child agents can target wb_delete / wb_edit_code, and cap the rendered
code lines with a shared character budget so a code-heavy board cannot grow the
prompt without bound. Return only the current turn's whiteboard ledger from the
Pi director loop instead of carrying history forward across requests.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* fix(chat): bound Pi whiteboard code context

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* fix(chat): prioritize newer persisted whiteboard code in budget

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* fix(chat): enforce whiteboard boundaries across Pi sessions

* feat(chat): refine soft-closing discussion controls

* fix(chat): make whiteboard clearing model-directed

---------

Co-authored-by: apple <apple@GigideMacBook-Air.local>
Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
Co-authored-by: LING-6150 <duan.lin@northeastern.edu>
2026-07-17 11:22:02 +08:00
danishsshaikh d00795094c feat(playback): add action-level navigation (#843)
Squashed from #843. Adds Notes click-to-jump action navigation and action-level playback resume/restore, with visible toolbar sentence controls removed after review.
2026-07-08 00:02:39 -04:00