docs: update prior phase summaries with commit hashes and self-check results

- 02-03-SUMMARY.md: fill in plan metadata docs commit hash (was TBD)
- 03-02-SUMMARY.md: add self-check PASSED section

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.planning/phases/02-backend-services/02-03-SUMMARY.md

@@ -75,7 +75,7 @@ Each task was committed atomically:
 1. **Task 1: Create alertService with deduplication and email** - `91f609c` (feat)
 2. **Task 2: Create alertService unit tests** - `4b5afe2` (test)
 
-**Plan metadata:** (docs commit hash TBD)
+**Plan metadata:** `0acacd1` (docs: complete alertService plan)
 
 ## Files Created/Modified
 

.planning/phases/03-api-layer/03-02-SUMMARY.md

@@ -97,6 +97,13 @@ None - no external service configuration required.
 - GET /admin/analytics endpoint (03-01) will report actual processing metrics instead of zeros
 - No blockers for remaining Phase 03 plans
 
+## Self-Check: PASSED
+
+- FOUND: backend/src/services/jobProcessorService.ts
+- FOUND: .planning/phases/03-api-layer/03-02-SUMMARY.md
+- FOUND commit: dabd4a5 (feat: analytics instrumentation)
+- FOUND commit: 081c535 (docs: plan metadata)
+
 ---
 *Phase: 03-api-layer*
 *Completed: 2026-02-24*