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glm-5.3-flash c8fc519978 feat(gc): the pg-lo engine-state window family — the conditional window host (wave 5)

- impl EngineWindowState on PgLoBackend: ensure_gc_schema creates
  gc_window only (never gc_pins, never the embedder's liveness
  table), window_stage upserts idempotent per (key, deadline),
  window_take is the one atomic DELETE ... RETURNING step over the
  <= boundary with the 42P01 -> empty virgin-take split
- nothing of EngineFleetState exists on this engine (ADR-012 §5's
  pg-lo row: fleet pins live on the kv host, sweep lock no); the
  one-window-host dormancy posture is recorded in the impl doc
- five contract tests mirror the postgres/sqlite suites (schema-only
  + row shape, stage idempotence/restage, take-exact-set/never-twice,
  the <= boundary with nanosecond slack, both virgin shapes);
  env-driven, skipping cleanly server-less, green live against the
  harness server

Verification: cargo test (default + --features pg-lo, server-less
and live), clippy -D warnings (default, pg-lo, + the pure builds
"pg-lo,mem" and "postgres,pg-lo"), cargo fmt --check, cargo doc --no-deps

2026-10-12 07:40:59 +00:00

.opencode/agents

docs(architecture): fix YAML-invalid frontmatter; changelog text moves to notes

2026-10-11 17:20:50 +00:00

docs

docs(tasks): decompose wave 5 — the pg-lo large engine, the window host's large-tier arm, the LO-medium SKIP-posture column

2026-10-12 07:13:51 +00:00

src

feat(gc): the pg-lo engine-state window family — the conditional window host (wave 5)

2026-10-12 07:40:59 +00:00

tasks

feat(gc): the pg-lo engine-state window family — the conditional window host (wave 5)