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gsxdsm 1c9e4dfccd FN-9127: instrument PostgreSQL teardown diagnostics

Add opt-in evidence capture for loaded PostgreSQL teardown stalls without changing teardown behavior.

- Add bounded phase and hook watchdogs with capped pg_stat_activity snapshots.
- Instrument the shared PostgreSQL test harness and cover diagnostic behavior with focused tests.
- Document the diagnostic workflow, measured flake campaign, and corrected mission-store gate scope.

Files changed:
 .../suite-only-flakes-observed-register.md         |  12 ++
 docs/testing.md                                    |  19 ++
 .../src/__test-utils__/pg-teardown-diagnostics.ts  | 237 +++++++++++++++++++++
 .../core/src/__test-utils__/pg-test-harness.ts     | 120 ++++++++---
 .../src/__tests__/pg-teardown-diagnostics.test.ts  | 162 ++++++++++++++
 .../__tests__/postgres/mission-store.pg.test.ts    |   8 +-
 6 files changed, 526 insertions(+), 32 deletions(-)

Fusion-Task-Id: FN-9127
Fusion-Task-Lineage: 2488b7c0-f12f-4560-9a99-41aaca9d1526
Co-authored-by: Fusion (runfusion.ai) <noreply@runfusion.ai>

2026-08-16 12:59:23 -07:00

architecture

FN-8685: add durable cross-process task deletion consumers

2026-08-01 06:09:04 -07:00

architecture-patterns

fix(engine): make the planning->plan-review handoff atomic so planned cards stop stranding in Todo

2026-08-12 21:24:53 -07:00

best-practices

docs(solutions): finding 6 — read the implementation before claiming its output is wrong (#2649 )

2026-07-30 00:07:06 -07:00

build-errors

docs(solutions): capture eslint exhaustive-deps CI-lint gotcha