diff --git a/.planning/ROADMAP.md b/.planning/ROADMAP.md
index b2f68f9..3b9ae66 100644
--- a/.planning/ROADMAP.md
+++ b/.planning/ROADMAP.md
@@ -4,7 +4,7 @@ _Last updated: 2026-05-21_
 
 ## Phases
 
-- [ ] **Phase 1: Infrastructure Foundation** — PostgreSQL + MinIO wired into Docker Compose; Alembic migrations running; existing app still works
+- [x] **Phase 1: Infrastructure Foundation** — PostgreSQL + MinIO wired into Docker Compose; Alembic migrations running; existing app still works
 - [ ] **Phase 2: Users & Authentication** — Full auth flow end-to-end (register, login, TOTP, backup codes, password reset, sign-out-all) with admin panel for user management
 - [ ] **Phase 3: Document Migration & Multi-User Isolation** — All documents in PostgreSQL + MinIO; per-user isolation enforced; existing UI still works
 - [ ] **Phase 4: Folders, Sharing, Quotas & Document UX** — Full document management UX (folders, sharing, quota bar, PDF preview, search, audit log)
@@ -31,7 +31,7 @@ _Last updated: 2026-05-21_
 - [x] 01-02-PLAN.md — Wave 0 test scaffolds (xfail/skip stubs) + async pytest fixtures
 - [x] 01-03-PLAN.md — SQLAlchemy ORM models + async engine + Alembic async migration (incl. alembic upgrade head)
 - [x] 01-04-PLAN.md — StorageBackend ABC + MinIO backend + rewritten async services/storage.py
-- [ ] 01-05-PLAN.md — Lifespan + /health + API cutover + Celery worker + walking-skeleton e2e verify
+- [x] 01-05-PLAN.md — Lifespan + /health + API cutover + Celery worker + walking-skeleton e2e verify
 
 ---
 
diff --git a/.planning/STATE.md b/.planning/STATE.md
index 2e503c6..abf9fc4 100644
--- a/.planning/STATE.md
+++ b/.planning/STATE.md
@@ -2,29 +2,29 @@
 gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: milestone
-current_phase: 1
-status: executing
-last_updated: "2026-05-22T07:40:00Z"
+current_phase: 2
+status: ready
+last_updated: "2026-05-22T12:00:00Z"
 progress:
   total_phases: 5
-  completed_phases: 0
+  completed_phases: 1
   total_plans: 5
-  completed_plans: 4
-  percent: 80
+  completed_plans: 5
+  percent: 20
 ---
 
 # Project State
 
 **Project:** DocuVault
-**Status:** Executing Phase 1
-**Current Phase:** 1
+**Status:** Phase 1 Complete — Ready for Phase 2
+**Current Phase:** 2
 **Last Updated:** 2026-05-22
 
 ## Phase Status
 
 | Phase | Name | Status |
 |---|---|---|
-| 1 | Infrastructure Foundation | In Progress (4/5 plans) |
+| 1 | Infrastructure Foundation | ✓ Complete |
 | 2 | Users & Authentication | Not Started |
 | 3 | Document Migration & Multi-User Isolation | Not Started |
 | 4 | Folders, Sharing, Quotas & Document UX | Not Started |
@@ -32,20 +32,18 @@ progress:
 
 ## Current Position
 
-Phase: 1 (Infrastructure Foundation) — EXECUTING
-Plan: 5 of 5
-**Phase:** 01-infrastructure-foundation
-**Plan:** 01-04 COMPLETE → advancing to 01-05
-**Progress:** ████████░░ 80%
+**Phase:** 01-infrastructure-foundation — COMPLETE ✓
+**Plan:** 5/5 complete
+**Progress:** ██░░░░░░░░ 20% (1/5 phases)
 
 ## Performance Metrics
 
 | Metric | Value |
 |---|---|
-| Phases complete | 0 / 5 |
+| Phases complete | 1 / 5 |
 | Requirements mapped | 54 / 54 |
 | Plans written | 5 (Phase 1) |
-| Plans complete | 4 |
+| Plans complete | 5 |
 
 ## Accumulated Context
 
@@ -92,6 +90,6 @@ _Updated at each phase transition._
 
 | Field | Value |
 |---|---|
-| Last session | 2026-05-22 — Executed 01-04-PLAN.md (StorageBackend ABC + MinIOBackend + async services/storage.py; all 6 test_storage.py xfail tests PASSED) |
-| Next action | Execute 01-05-PLAN.md (Lifespan + /health + API cutover + Celery worker + walking-skeleton e2e verify) |
+| Last session | 2026-05-22 — Executed Phase 1 (all 5 plans complete); walking-skeleton e2e verified live against Docker stack |
+| Next action | Run `/gsd:discuss-phase 2` to begin Phase 2 (Users & Authentication) |
 | Pending decisions | See Open Questions above |
diff --git a/.planning/phases/01-infrastructure-foundation/01-05-SUMMARY.md b/.planning/phases/01-infrastructure-foundation/01-05-SUMMARY.md
new file mode 100644
index 0000000..1de69be
--- /dev/null
+++ b/.planning/phases/01-infrastructure-foundation/01-05-SUMMARY.md
@@ -0,0 +1,100 @@
+---
+plan: 01-05
+phase: 01-infrastructure-foundation
+status: complete
+completed: "2026-05-22"
+tasks_total: 4
+tasks_complete: 4
+requirements_satisfied:
+  - STORE-01
+  - STORE-07
+self_check: PASSED
+---
+
+# Plan 01-05 Summary — Lifespan + /health + API Cutover + Celery + Walking Skeleton
+
+## What Was Built
+
+### Task 1 — Celery app + task + session-aware classifier (commit 32d67de)
+
+**`backend/celery_app.py`** — Minimal Celery instance (`celery_app = Celery("docuvault")`). Reads `REDIS_URL` directly from `os.environ` (no config import — Pitfall 7). JSON serialization, `documents` queue route for `tasks.document_tasks.*`, `autodiscover_tasks(["tasks"])`.
+
+**`backend/tasks/__init__.py`** — Empty package file.
+
+**`backend/tasks/document_tasks.py`** — Sync `def extract_and_classify(document_id: str)` Celery task (NOT async). Uses `asyncio.run(_run(document_id))` to drive the async body. Opens a fresh `AsyncSessionLocal` session, fetches the Document ORM row, pulls bytes from MinIO via `MinIOBackend.get_object`, calls `extractor.extract_text_from_bytes`, persists extracted text, then calls `classifier.classify_document(session, doc_id)`. Non-fatal classification failures set `status = "classification_failed"`.
+
+**`backend/services/extractor.py`** — Added `extract_text_from_bytes(file_bytes, content_type)` helper that writes to a `NamedTemporaryFile` and delegates to the existing `extract_text(path, mime)` function.
+
+**`backend/services/classifier.py`** — Added `session: AsyncSession` as first parameter to `classify_document` and `suggest_topics_for_document`. All internal `storage.*` calls updated to pass session.
+
+### Task 2 — Lifespan + /health + async API wiring (commit c1931fd)
+
+**`backend/main.py`** — Lifespan creates `Minio` client, auto-creates `docuvault` bucket if absent (via `asyncio.to_thread`), attaches to `app.state.minio`, disposes `engine` on shutdown. No longer calls `ensure_data_dirs()`. `/health` endpoint probes PostgreSQL (`SELECT 1` via `AsyncSessionLocal`) and MinIO (`bucket_exists` via `asyncio.to_thread`); returns `{"status": "ok"|"degraded", "checks": {"postgres": ..., "minio": ...}}`.
+
+**`backend/api/documents.py`** — All 5 route handlers inject `session: AsyncSession = Depends(get_db)`. Upload handler: calls `await storage.save_upload(session, ...)`, uses in-memory `content` bytes for extraction (no filesystem path needed), enqueues `extract_and_classify.delay(saved["id"])` for async classification, returns `topics: []` immediately. `/classify` endpoint retains synchronous `await classifier.classify_document(session, doc_id)` for backward compatibility.
+
+**`backend/api/topics.py`** — All 5 route handlers inject session dependency; all `storage.*` calls are async with session.
+
+### Task 3 — Final cutover (commit 970c8e4)
+
+- `backend/data/` — All tracked files removed via `git rm -rf`; `backend/data/` added to `.gitignore`
+- `backend/config.py` — Removed `DATA_DIR`, `UPLOADS_DIR`, `METADATA_DIR`, `TOPICS_FILE`, `ensure_data_dirs()`, `import os`. Retained `DEFAULT_SETTINGS`, `DEFAULT_SYSTEM_PROMPT`, `class Settings(BaseSettings)`, `settings = Settings()`. `SETTINGS_FILE` rebased as `Path(settings.data_dir) / "settings.json"` after `settings = Settings()`.
+- `backend/tests/conftest.py` — Removed `isolated_data_dir` fixture and sync `TestClient` `client` fixture. Promoted `db_session` and `async_client` fixtures (removed `try/except ImportError` wrappers — deps now exist). Added `live_services_available` session fixture that probes localhost:5432/9000/6379 via socket.
+- `backend/tests/test_documents.py` — Deleted 9 legacy sync tests. Removed all `@pytest.mark.xfail` markers from async ports.
+- `backend/tests/test_health.py` — Removed `@pytest.mark.xfail` from `test_health_checks_postgres_and_minio`. Deleted legacy `test_health(client)` sync test.
+- `backend/tests/test_settings.py`, `backend/tests/test_topics.py` — Updated to remove any remaining sync client references.
+
+### Task 4 — Walking-skeleton e2e verification (human-approved ✓)
+
+All 12 verification steps passed:
+
+1. `.env` created from `.env.example`
+2. `docker compose down -v` — clean state
+3. `docker compose up --build -d` — all 5 services booted
+4. `docker compose ps` — `postgres`, `minio`, `redis`, `backend`, `celery-worker` all `Up (healthy)`
+5. `alembic upgrade head` — exit 0, `Running upgrade -> 0001`
+6. `/health` response:
+   ```json
+   {"status": "ok", "checks": {"postgres": "ok", "minio": "ok"}}
+   ```
+7. Upload `test.txt` — returned `{"id": "<uuid>", "original_name": "test.txt", "topics": [], ...}`
+8. PostgreSQL confirmed: one row, `object_key` starts with `null-user/`
+9. MinIO confirmed: object present in `docuvault` bucket
+10. Celery confirmed: `Task tasks.document_tasks.extract_and_classify[...] succeeded`
+11. Delete confirmed: `{"success": true}`, MinIO object removed
+12. Integration tests: zero FAILED, zero XFAIL
+
+## ROADMAP.md Phase 1 Success Criteria — All Met
+
+| # | Criterion | Status |
+|---|-----------|--------|
+| 1 | `docker compose up` starts all services healthy | ✓ Verified (Task 4, step 4) |
+| 2 | `alembic upgrade head` applies cleanly | ✓ Verified (Plan 03 Task 3 + Task 4 step 5) |
+| 3 | Full upload/extract/classify workflow works — no regression | ✓ Verified (Task 4, steps 7-10) |
+| 4 | MinIO object key schema `{user_id}/{document_id}/{uuid4()}{ext}` enforced | ✓ Verified (Plan 04 + Task 4 step 8) |
+
+## Deviations
+
+| Rule | Deviation | Resolution |
+|------|-----------|------------|
+| 1 (Bug) | `extract_text_from_bytes` helper did not exist in extractor.py | Added to `services/extractor.py` as specified in Plan 05 Task 1 action block |
+| 2 (Enhancement) | `live_services_available` uses env var `INTEGRATION=1` as fallback | Socket probe primary, env var secondary — matches plan intent |
+
+## Key Files Created/Modified
+
+| File | Status | Notes |
+|------|--------|-------|
+| backend/celery_app.py | Created | Minimal Celery — no config import |
+| backend/tasks/document_tasks.py | Created | Sync task wrapping asyncio.run |
+| backend/tasks/__init__.py | Created | Package marker |
+| backend/main.py | Rewritten | Lifespan + /health |
+| backend/api/documents.py | Rewritten | Async session injection |
+| backend/api/topics.py | Rewritten | Async session injection |
+| backend/services/classifier.py | Updated | Session-aware |
+| backend/services/extractor.py | Updated | Added bytes helper |
+| backend/config.py | Pruned | Flat-file constants removed |
+| backend/tests/conftest.py | Pruned | Async-only fixtures |
+| backend/tests/test_documents.py | Pruned | Async-only tests |
+| backend/data/ | Deleted | D-04 complete |
+
+## Self-Check: PASSED