Rename LocalSnapshotInfo to LocalSnapshot (#1856)

For consistency with ExternalSnapshot

#1378

docs/api-guide.md

@@ -511,7 +511,7 @@ Discards an actor's live or crashed execution and transitions it to `ACTOR_STATE
 *   **Request:** `RevertActorRequest`
     *   `actor`: `ObjectRef` of the actor to revert. Accepted from `ACTOR_STATE_RUNNING`, `ACTOR_STATE_PAUSED`, and `ACTOR_STATE_CRASHED` (plus `ACTOR_STATE_REVERTING` for idempotent retries). Calling `RevertActor` on an already `ACTOR_STATE_SUSPENDED` actor returns `FAILED_PRECONDITION`.
 *   **Response:** `RevertActorResponse` containing the reverted `Actor` in `ACTOR_STATE_SUSPENDED`.
-*   Reverting terminates any bound worker sandbox, clears node-local pause checkpoints (`localSnapshotInfo`), and garbage-collects any partial external snapshot left by an interrupted suspend while preserving the last committed `externalSnapshot`.
+*   Reverting terminates any bound worker sandbox, clears node-local pause checkpoints (`localSnapshot`), and garbage-collects any partial external snapshot left by an interrupted suspend while preserving the last committed `externalSnapshot`.
 *   External volumes are not reverted. Their contents are never part of a snapshot, so a reverted actor comes back with its memory and root filesystem rewound but its volumes exactly as the discarded execution left them.
 
 #### `DeleteActor`

docs/upgrade.md

@@ -380,7 +380,7 @@ kubectl ate get workers -o json | jq -r --arg node "$NODE" '
 kubectl ate get actors -A -o json | jq -r --arg node "$NODE" '
   ["PAUSED_ACTOR", "STATE"],
   (.actors[]
-   | select(.status.localSnapshotInfo.nodeVmsWithLocalSnapshots // [] | index($node))
+   | select(.status.localSnapshot.nodeVmsWithLocalSnapshots // [] | index($node))
    | [.metadata.atespace + "/" + .metadata.name, .status.state])
   | @tsv' | column -t -s $'\t'
 ```