flaky-test-triagelisted

# Flaky Test Triage A suite nobody trusts is worse than no suite. This is the pass that restores trust. ## Procedure 1. Collect the last two hundred runs. Fewer than that and a one-in-thirty flake looks like a fresh regression. 2. Run `scripts/run.py <ci-export.json>` to rank every test by failure rate, and to split failures into ones that reproduce on rerun and ones that do not. 3. A test that fails and passes on rerun with no code change is flaky. A test that fails consistently since a commit is a regression, and it goes to the author. 4. Classify each flake by cause: shared state between tests, real time or timezone, ordering, network, or an unawaited promise. Fixes differ per cause and guessing the cause is how a flake gets "fixed" three times. 5. Quarantine the flakes that cannot be fixed today, with an owner and a date. A quarantine with no date is a deletion nobody admitted to. 6. Re-run the ranking weekly. Flake rate is a trend, not a snapshot. ## Output - The ranked table: test, failure rate, reproduces on rerun, suspected cause. - The regression list, routed to the commit authors. - The quarantine list, each entry with an owner and an expiry date.