[Tournament p2] SQL run context for runGraph

[tangletools]

Tournament entrant

Independent tournament entrant p2, built from main at 12ffa98e8d024d0fa4e22921b8e448627ce3cfd2; no other entrant's branch was read or used. DRAFT; do not merge.

[tool] Read merged PR #1368 and the durability changes at bec5e3d207f393af17c9c3aca416a47dca339634, plus the existing SqlAdapter, run context, spawn journal and recovery paths.

Tests first

[tool] First commit d5cd54b148482a51622c777f3576664783c1a7a6 adds tests, fixtures and a branch-local conformance job, before any implementation.

• tests/durability/sql-run-context.test.ts: real SQLite durable reopen; idempotent append/conflict rejection; blob integrity; two live OS processes; SIGKILL takeover; SIGSTOP/SIGCONT stale-owner fencing.
• tests/durability/sql-graph-kill-resume.test.ts: existing conductor + three delegates graph, independent per-process local directories, SQL-only inheritance; reference-derived kill matrix at driver/worker/tool and journal before/after boundaries; same output, one effect, unique cursors, one original spawn and one done settlement per worker, no in-doubt-key escalation.
• Existing file-backed durability tests must remain green.

[not checked] Implementation and green results are not yet present in this tests-first commit. The SQL module does not yet exist. This description will be updated with actual verification evidence, not inferred passes.

The temporary source capture in the branch-local job enables local reproduction where direct GitHub cloning is unavailable; it contains repository source only, not credentials.

[tangletools]

[tool] Resumed work on this existing p2 branch; the connector's write actions are present. The earlier chat statement that no PR existed was incorrect.

[tool] Reproduced the tests-first failure locally from this branch's source/dependency artifacts: SQL context module missing. Implementation is now under local test, not yet pushed. Passing so far: 5 SQL context tests, 11 SQL publication/fencing tests (including delayed successful replies, hung renewal, acknowledgement loss and takeover during publication), and 3 actual two-process runGraph ownership/dispatch tests. TypeScript source check and package build passed. The full strict graph kill matrix is still running; no green-matrix claim yet.

Design keeps the original execution identity and calls Executor.recover; non-recoverable executors are refused before admission. The external effect fixture enforces epoch and idempotency at its atomic effect/result commit, including the effect-committed/runtime-result-unrecorded window. No replacement-key escalation assertion has been relaxed. This remains a draft until verified.

[drewstone]

Closing as superseded by the T1 synthesis: the tournament's journal/blocks work shipped as #1381, the fenced ownership + coordination side-log + two-host lost-ack conformance as #1391, and the never-admitted spawn-window fix, SIGSTOP/SIGCONT stale-owner fencing, and per-worker exactly-once assertions as #1395 (all merged). Final durability conformance on main: 159/159 with zero expected failures.