memory: /snapshot — #368 silo test passed; two-tier migration; stores scrubbed

- #368 (user,character) memory silo test DONE + PASSED live (WT b127):
  write-side conjunctive {end_user,agent_self} scoping + read-side cross-
  character isolation both proven end-to-end; betty (throwaway) deleted,
  Sindra intact. Full record in persistent-memory.d/2026-07-18-368-silo-
  test-passed.md. Retired the stale "silo test in progress" in-flight blocks.
- Two-tier migration: split 152 over-threshold dated entries into
  persistent-memory.d/ detail files, leaving one-line pointers in the index
  (startup load ~196KB -> ~53KB; bodies now load on demand).
- Tier-3 stores scrubbed clean (memory 0 / affect 0, provider restarted
  empty); persistent-memory + detail file updated to reflect the scrub.
This commit is contained in:
vh
2026-07-17 21:39:18 -07:00
parent 29481fbcf0
commit ff1f9ca1e8
154 changed files with 393 additions and 178 deletions
@@ -0,0 +1 @@
`[2026-06-15]` **Memory plane TDD'd + shipped** (commit `cd12951`, v0.17.3). Impl decisions worth keeping: vec0 `distance_metric=cosine` at table creation (`score = 1 − distance`); `search` over-fetches ALL candidates by cosine then scope-filters in Python so `top_k` counts IN-SCOPE hits; idempotency_id = reference 4-tuple `("default",verb,_ctx_actor(ctx),key)` pipe-joined as the SQLite PK, digest = sha256 canonical-JSON; `_ctx_actor` = `job_id|jwt_sub|session_id`. heid-code-review returned zero true drift; optimistic-lock semantics pinned to the reference via an `expected_revisions` parity test.