docs(phase-03): complete phase execution and verification
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.planning/phases/03-api-layer/03-VERIFICATION.md
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---
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phase: 03-api-layer
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verified: 2026-02-24T21:15:00Z
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status: passed
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score: 10/10 must-haves verified
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re_verification: false
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---
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# Phase 3: API Layer Verification Report
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**Phase Goal:** Admin-authenticated HTTP endpoints expose health status, alerts, and processing analytics; existing service processors emit analytics instrumentation
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**Verified:** 2026-02-24T21:15:00Z
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**Status:** passed
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**Re-verification:** No — initial verification
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## Goal Achievement
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### Observable Truths
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| # | Truth | Status | Evidence |
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|---|-------|--------|----------|
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| 1 | GET /admin/health returns current health status for all four services when called by admin | VERIFIED | `admin.ts:24-62` — Promise.all over SERVICE_NAMES=['document_ai','llm_api','supabase','firebase_auth'], maps null results to `status:'unknown'` |
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| 2 | GET /admin/analytics returns processing summary (uploads, success/failure, avg time) for a configurable time range | VERIFIED | `admin.ts:69-96` — validates `?range=` against `/^\d+[hd]$/`, calls `getAnalyticsSummary(range)`, returns `{ totalUploads, succeeded, failed, successRate, avgProcessingMs }` |
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| 3 | GET /admin/alerts returns active alert events | VERIFIED | `admin.ts:102-117` — calls `AlertEventModel.findActive()`, returns envelope |
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| 4 | POST /admin/alerts/:id/acknowledge marks an alert as acknowledged | VERIFIED | `admin.ts:123-150` — calls `AlertEventModel.acknowledge(id)`, returns 404 on not-found, 500 on other errors |
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| 5 | Non-admin authenticated users receive 404 on all admin endpoints | VERIFIED | `requireAdmin.ts:21-30` — returns `res.status(404).json({ error: 'Not found' })` if email does not match; router-level middleware applies to all routes |
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| 6 | Unauthenticated requests receive 401 on admin endpoints | VERIFIED | `firebaseAuth.ts:102-104` — returns 401 before `requireAdminEmail` runs; `verifyFirebaseToken` is second in the router middleware chain |
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| 7 | Document processing emits upload_started event after job is marked as processing | VERIFIED | `jobProcessorService.ts:137-142` — `recordProcessingEvent({ event_type: 'upload_started' })` called after `markAsProcessing`, before timeout setup |
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| 8 | Document processing emits completed event with duration_ms after job succeeds | VERIFIED | `jobProcessorService.ts:345-351` — `recordProcessingEvent({ event_type: 'completed', duration_ms: processingTime })` called after `markAsCompleted` |
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| 9 | Document processing emits failed event with duration_ms and error_message when job fails | VERIFIED | `jobProcessorService.ts:382-392` — `recordProcessingEvent({ event_type: 'failed', duration_ms, error_message })` in catch block with `if (job)` null-guard |
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| 10 | Analytics instrumentation does not change existing processing behavior or error handling | VERIFIED | All three calls are void fire-and-forget (no await, no try/catch wrapper); confirmed 0 occurrences of `await recordProcessingEvent`; existing code paths unchanged |
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**Score:** 10/10 truths verified
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---
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### Required Artifacts
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| Artifact | Expected | Status | Details |
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|----------|----------|--------|---------|
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| `backend/src/middleware/requireAdmin.ts` | Admin email check middleware returning 404 for non-admin; exports `requireAdminEmail` | VERIFIED | 33 lines; exports `requireAdminEmail`; reads env vars inside function body; fail-closed pattern; no stubs |
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| `backend/src/routes/admin.ts` | Admin router with 4 endpoints; exports default Router | VERIFIED | 153 lines; 4 route handlers (`GET /health`, `GET /analytics`, `GET /alerts`, `POST /alerts/:id/acknowledge`); default export; fully implemented |
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| `backend/src/services/analyticsService.ts` | `getAnalyticsSummary` and `AnalyticsSummary` export; uses `getPostgresPool()` | VERIFIED | Exports `AnalyticsSummary` interface (line 95) and `getAnalyticsSummary` function (line 115); uses `getPostgresPool()` (line 117); parameterized SQL with `$1::interval` cast |
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| `backend/src/services/jobProcessorService.ts` | `recordProcessingEvent` import + 3 instrumentation call sites | VERIFIED | Import at line 6; 4 occurrences total (1 import + 3 call sites at lines 138, 346, 385); 0 `await` uses |
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| `backend/src/index.ts` | `app.use('/admin', adminRoutes)` mount | VERIFIED | Import at line 15; mount at line 184 |
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---
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### Key Link Verification
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| From | To | Via | Status | Details |
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|------|----|-----|--------|---------|
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| `backend/src/routes/admin.ts` | `backend/src/middleware/requireAdmin.ts` | `router.use(requireAdminEmail)` | WIRED | `admin.ts:3` imports; `admin.ts:18` applies as router middleware |
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| `backend/src/routes/admin.ts` | `backend/src/models/HealthCheckModel.ts` | `HealthCheckModel.findLatestByService()` | WIRED | `admin.ts:5` imports; `admin.ts:27` calls `findLatestByService(name)` in Promise.all |
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| `backend/src/routes/admin.ts` | `backend/src/services/analyticsService.ts` | `getAnalyticsSummary(range)` | WIRED | `admin.ts:7` imports; `admin.ts:82` calls with validated range |
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| `backend/src/index.ts` | `backend/src/routes/admin.ts` | `app.use('/admin', adminRoutes)` | WIRED | Import at line 15; mount at line 184 |
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| `backend/src/services/jobProcessorService.ts` | `backend/src/services/analyticsService.ts` | `recordProcessingEvent()` | WIRED | Import at line 6; 3 call sites at lines 138, 346, 385 — no await |
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---
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### Requirements Coverage
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| Requirement | Source Plan | Description | Status | Evidence |
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|-------------|------------|-------------|--------|----------|
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| INFR-02 | 03-01 | Admin API routes protected by Firebase Auth with admin email check | SATISFIED | `verifyFirebaseToken` + `requireAdminEmail` applied as router-level middleware in `admin.ts:16-18`; unauthenticated gets 401, non-admin gets 404 |
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| HLTH-01 | 03-01 | Admin can view live health status (healthy/degraded/down) for all four services | SATISFIED | `GET /admin/health` queries `HealthCheckModel.findLatestByService` for `['document_ai','llm_api','supabase','firebase_auth']`; null results map to `status:'unknown'` |
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| ANLY-02 | 03-01, 03-02 | Admin can view processing summary: upload counts, success/failure rates, avg processing time | SATISFIED | `GET /admin/analytics` returns `{ totalUploads, succeeded, failed, successRate, avgProcessingMs }` via aggregate SQL; `jobProcessorService.ts` emits real events to populate the table |
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All three requirement IDs declared across plans are accounted for.
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**Cross-reference against REQUIREMENTS.md traceability table:** INFR-02, HLTH-01, and ANLY-02 are all mapped to Phase 3 in `REQUIREMENTS.md:89-91`. No orphaned requirements — all Phase 3 requirements are claimed and verified.
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---
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### Anti-Patterns Found
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| File | Line | Pattern | Severity | Impact |
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|------|------|---------|----------|--------|
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| `backend/src/services/jobProcessorService.ts` | 448 | `TODO: Implement statistics method in ProcessingJobModel` inside `getStatistics()` | Info | Pre-existing stub in `getStatistics()` — method is not called anywhere in the codebase and is not part of Phase 03 plan artifacts. No impact on phase goal. |
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No blocker or warning-level anti-patterns found in Phase 03 modified files. The one TODO is in a pre-existing orphaned method unrelated to this phase.
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---
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### Human Verification Required
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None. All must-haves are verifiable programmatically for this phase.
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The following items would require human verification only when consuming the API from Phase 4 (frontend):
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- Visual rendering of health status badges
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- Alert acknowledgement flow in the admin dashboard UI
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- Analytics chart display
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These are Phase 4 concerns, not Phase 3.
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---
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### Summary
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Phase 3 goal is fully achieved. All ten observable truths are verified at all three levels (exists, substantive, wired).
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**Plan 03-01 (Admin API endpoints):** All four endpoints are implemented with real logic, properly authenticated behind `verifyFirebaseToken + requireAdminEmail`, mounted at `/admin` in `index.ts`, and using the `{ success, data, correlationId }` response envelope consistently. The `requireAdminEmail` middleware correctly returns 404 (not 403) per the locked design decision.
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**Plan 03-02 (Analytics instrumentation):** Three `recordProcessingEvent()` call sites are present at the correct lifecycle points in `processJob()`. All calls are void fire-and-forget with no `await`, preserving the non-blocking contract. The null-guard on `job` in the catch block prevents runtime errors when `findById` throws before assignment.
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The two plans together deliver the complete analytics pipeline: events are now written to `document_processing_events` by the processor, and `GET /admin/analytics` reads them via aggregate SQL.
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Commits 301d0bf, 4169a37, and dabd4a5 verified present in git history with correct content.
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---
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_Verified: 2026-02-24T21:15:00Z_
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_Verifier: Claude (gsd-verifier)_
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