Hypatia May
828c3f85c9
P1: both merge parents shipped SCHEMA_VERSION=3 for different layouts (surface columns vs seed_length), so an on-disk 3 was ambiguous and wrongly accepted. Bump to 4 (merged layout) so the version check rejects both sibling v3s. P2: a surface-eligible event with no surfaceOp lands in the log but vanishes from deriveMessages() (surface is the sole derivation path). The typed append overload enforces the marker only when the type arg is a literal; it collapses to optional when widened to the union (a caller iterating raw events). Guard at runtime in both append() and the seed constructor — no backward-compat for surface-less logs. Shared seed fixtures carry surfaceOp explicitly and the appendLog helper forwards it verbatim (no synthesized default). Exports isSurfaceEligibleType. Regression tests for all three, each verified to fail on the unfixed code. Gates: typecheck, test (1115), snapshot (14), doc-sync, lint, build, hygiene green.
session-persistence/ — persistence capability family
The durable session-persistence seam and its storage backends. The interface package owns the abstract SessionPersistence service and the shared write coordinator; the backends are concrete implementations that register on ctx.sessionPersistence. All product packages.
| Package | Role | ctx key |
|---|---|---|
session-persistence/ |
Persistence seam + shared write coordinator | ctx.sessionPersistence |
session-persistence-jsonl/ |
JSONL-sidecar persistence backend | (registers ctx.sessionPersistence) |
session-persistence-sqlite/ |
SQLite persistence backend | (registers ctx.sessionPersistence) |
The interface lives at session-persistence/session-persistence/; backends are flat siblings. A new storage backend joins here and registers on ctx.sessionPersistence. See session persistence.