Title#

Fix watchdog unit test failures caused by pipeline refactor and env threshold overrides

Problem#

Two root causes broke 6 watchdog tests: STUCK_THRESHOLD_MS / SLOW_THRESHOLD_MS env vars set to 99,999,999ms in the agent environment caused age checks to never trigger, and currentPhase: 'execute' fixture values referenced the removed execute phase.

Task / Link#

Closes #357

Changes#

• Add beforeEach env var overrides (STUCK_THRESHOLD_MS=1800000, SLOW_THRESHOLD_MS=900000) so watchdog thresholds are predictable in tests regardless of the ambient environment
• Add afterEach to restore original env var values after each test
• Replace currentPhase: 'execute' with 'deliver' in 6 test fixtures (the execute phase was removed in #342)
• Update matching assertions (phase: 'execute' → 'deliver') in 3 places

Notes#

• @nestjs/websockets and @nestjs/platform-ws were already present in package.json — no dependency change needed
• The ws-gateway test suite was already passing

Testing#

• npm test — 44 suites, 756 tests, 0 failures
• npm run lint — 0 warnings