Merge branch 'codex/simp-session-dead-surface' into codex/simp-session-log-representation

# Conflicts:
#	docs/core-data-structures/session.md
#	docs/rfc/implemented/feature/2026-07-06-sandbox.md
#	examples/acp-agent/tests/snapshots/permission-switching/system-prompt.golden.md
#	examples/sandbox-acp-agent/tests/acp.snapshot.ts
#	examples/sandbox-acp-agent/tests/snapshots/mode-switching/session.jsonl
#	packages/core/session/README.md
#	packages/core/session/src/index.ts
#	packages/core/session/src/surface.ts
#	packages/core/session/tests/surface.spec.ts
#	scripts/type-equiv.manifest.json
This commit is contained in:
Tianyi Cui
2026-07-14 11:49:46 +08:00
164 changed files with 3273 additions and 1694 deletions
+2 -1
View File
@@ -48,7 +48,8 @@ Durable values need one accepted representation, not a check followed by a secon
- `SurfaceOp` — how an event entered the ordered surface: `'append'` (normal tail append) or `{ op: 'replace', start, end }` (replace entries from `start` through `end` inclusive — both must be valid surface seqs; `start === end` replaces one entry). Used by compaction to shadow old events without deleting them.
- `SurfaceIntent` — `{ surfaceOp: SurfaceOp; sourceEventSeqs?: number[] }`, the required third parameter to `session.append()` for surface-eligible types.
- `isSurfaceEvent(event)` / `isSurfaceEligibleType(type)` — the first narrows a `SessionEvent` to a fully formed surface event (type is surface-eligible AND `surfaceOp` present); the second is the type-only check (is this one of the five `SurfaceEventType` values?), used to detect a surface-eligible event MISSING its marker — e.g. when validating a seed/load log.
- `foldSurface(events)` — replay the canonical surface transitions into detached current event sequences and actual replacement ranges, rejecting surface-eligible events that lack their mandatory marker. `SurfaceManager` shares the same transitions while retaining only its incremental sequence cache.
- `isSurfaceEvent(event)` / `isSurfaceEligibleType(type)` — the first narrows a `SessionEvent` to a fully formed surface event (type is surface-eligible AND `surfaceOp` present); the second is the type-only check, used to detect a surface-eligible event MISSING its marker when validating a seed or loaded log.
### Request-header reconstruction (`request-header.ts`)