fix: remove obsolete /data/documents and /config dirs from Dockerfiles

doc-service and ai-service no longer use local filesystem directories —
all file and config I/O goes through storage-service. Update README and
CLAUDE.md to reflect 6-service architecture, new volumes, and add
storage-service step to the "Adding a new resource" checklist.

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

CLAUDE.md

@@ -292,8 +292,9 @@ Each entry must include:
 4. Add router in `backend/app/routers/`, mount it in `main.py`
 5. Add API function(s) to `frontend/src/api/client.ts`
 6. Add page component in `frontend/src/pages/`, register route in `App.tsx`
-7. Update `STATUS.md` for affected services
-8. Add changelog entry
+7. If the resource involves file or blob data: store it via `PUT /objects/{bucket}/{key}` on `storage-service:8020`. Never write to the local filesystem. See `features/storage-service/CLAUDE.md` for the API.
+8. Update `STATUS.md` for affected services
+9. Add changelog entry
 
 ---
 
@@ -329,23 +330,18 @@ git checkout -b feat/<descriptive-title>   # e.g. feat/user-profile-avatar-uploa
 ```
 
 #### 2 — Spin up an isolated Docker stack for the feature
-A dedicated compose stack runs alongside the main dev stack so both can be tested independently.
+The feature stack always uses port `5173` (same as the main dev stack). Stop the main stack before starting a feature stack, and restart it when done.
 
-**Find the next free port** (main dev stack owns 5173):
+**Stop the main dev stack first:**
 ```bash
-for port in $(seq 5174 5200); do
-  lsof -iTCP:$port -sTCP:LISTEN -t &>/dev/null || { echo "$port"; break; }
-done
+docker compose -f docker-compose.yml -f docker-compose.dev.yml down
 ```
-Use the first free port returned (call it `$PORT`).
 
 **Create a per-feature override file** at `docker-compose.feat-<slug>.yml` (gitignored):
 ```yaml
 # docker-compose.feat-<slug>.yml  — feature test stack, never committed to main
 services:
   frontend:
-    ports:
-      - "$PORT:8080"        # e.g. 5174:8080
     container_name: frontend-<slug>
   backend:
     container_name: backend-<slug>
@@ -371,8 +367,7 @@ docker compose -f docker-compose.yml \
   --project-name <slug> up --build
 ```
 
-The feature frontend is now reachable at `http://localhost:$PORT`.
-The main dev stack continues running unaffected on `:5173`.
+The feature frontend is now reachable at `http://localhost:5173`.
 
 #### 3 — Develop on the feature branch
 All code changes happen on `feat/<slug>`. Commit and push normally:
@@ -383,7 +378,7 @@ git push -u origin feat/<slug>
 ```
 
 #### 4 — Confirm functionality
-Before merging, verify all of the following on `http://localhost:$PORT`:
+Before merging, verify all of the following on `http://localhost:5173`:
 - [ ] Login and registration work end-to-end
 - [ ] The specific feature works as intended
 - [ ] No regressions visible in the UI
@@ -400,13 +395,16 @@ git branch -d feat/<slug>
 git push origin --delete feat/<slug>
 ```
 
-#### 6 — Tear down the feature stack
+#### 6 — Tear down the feature stack and restart main dev stack
 ```bash
 docker compose -f docker-compose.yml \
                -f docker-compose.dev.yml \
                -f docker-compose.feat-<slug>.yml \
   --project-name <slug> down --volumes --remove-orphans
 rm docker-compose.feat-<slug>.yml
+
+# Restart the main dev stack on :5173
+docker compose -f docker-compose.yml -f docker-compose.dev.yml up --build -d
 ```
 
 ---

README.md

@@ -20,10 +20,11 @@ A fullstack SaaS web application built with FastAPI, React, and PostgreSQL.
 - All input sanitized before reaching the DB (null-byte rejection, length caps, format validation)
 - **PDF Documents app** (`/apps/documents`): upload PDFs, async text extraction (pdfplumber), AI classification via ai-service, per-user categories, file download
 - **AI Service** (`ai-service:8010`): shared AI intermediary container; routes prompts to Anthropic / Ollama / LM Studio; stateless; all feature containers talk to it via `POST /chat`
-- Admin settings: `/apps/ai/settings/admin` (provider, credentials, test connection); `/apps/documents/settings/admin` (upload limits only)
-- Config stored in shared Docker volume: `/config/ai_service_config.json` and `/config/doc_service_config.json`
+- **Storage Service** (`storage-service:8020`): unified file/blob storage with pluggable backends (local filesystem default; S3-compatible and WebDAV built in); backend switchable via admin UI with zero-data-loss migration
+- Admin settings: AI provider, doc upload limits, storage backend switching with live migration progress
+- Config stored in storage-service (`config` bucket); PDFs stored in storage-service (`documents` bucket) — no shared filesystem volumes
 - `/apps` launcher hub — one card per installed app with Open + Settings links
-- 5 separate Docker containers: `db`, `backend`, `ai-service`, `doc-service`, `frontend`
+- 6 separate Docker containers: `db`, `backend`, `ai-service`, `doc-service`, `storage-service`, `frontend`
 - All containers run as non-root users (UID 1001 for app containers, UID 70 for db)
 - Network-isolated: only the frontend exposes a host port (80/5173); all backend services are unreachable from outside Docker
 - Dev environment seeds a test user automatically on startup (`test@example.com` / `Test123!`)
@@ -38,6 +39,7 @@ A fullstack SaaS web application built with FastAPI, React, and PostgreSQL.
 | `backend` | custom (python:3.12-slim) | none | backend-net | 1001:1001 | FastAPI management API + proxy to doc-service |
 | `ai-service` | custom (python:3.12-slim) | none | backend-net | 1001:1001 | Shared AI intermediary (routes to LM Studio / Ollama / Anthropic) |
 | `doc-service` | custom (python:3.12-slim) | none | backend-net | 1001:1001 | PDF extraction microservice (calls ai-service) |
+| `storage-service` | custom (python:3.12-slim) | none | backend-net | 1001:1001 | Unified file/blob storage (local / S3-compatible / WebDAV) |
 | `frontend` | custom (nginxinc/nginx-unprivileged:alpine) | 80 (prod) / 5173 (dev) | backend-net + frontend-net | 1001:1001 | React UI + nginx reverse proxy |
 
 **Networks:**
@@ -46,8 +48,8 @@ A fullstack SaaS web application built with FastAPI, React, and PostgreSQL.
 
 **Volumes:**
 - `postgres_data` — PostgreSQL data files
-- `doc_data` — uploaded PDF files (mounted into doc-service at `/data/documents`)
-- `app_config` — per-service runtime config JSON files (mounted into backend, ai-service, and doc-service at `/config`)
+- `storage_data` — all file/blob storage: uploaded PDFs (`documents/` bucket) and service config JSON files (`config/` bucket); mounted into storage-service at `/data/storage`
+- `watch_data` — file watcher input directory; mounted into doc-service at `/data/watch`
 
 The frontend nginx proxies `/api/*` to `backend:8000` via `backend-net`. The backend proxies `/api/documents/*` and `/api/documents/categories/*` to `doc-service:8001`. The backend test-connection endpoint proxies to `ai-service:8010`. No backend service or database port is ever exposed to the host.
 
@@ -126,10 +128,8 @@ Copy `.env.example` to `backend/.env` and adjust:
 | `JWT_PRIVATE_KEY` | — | RS256 private key PEM (generate with `scripts/generate_jwt_keys.py`) |
 | `JWT_PUBLIC_KEY` | — | RS256 public key PEM (generate with `scripts/generate_jwt_keys.py`) |
 | `CORS_ORIGINS` | `["http://localhost:5173"]` | Allowed frontend origins |
-| `APP_CONFIG_DIR` | `/config` | Directory for per-service runtime config JSON files |
-| `DOC_SERVICE_URL` | `http://doc-service:8001` | Internal URL of the doc-service (set by docker-compose) |
-
-`doc-service` reads `DATABASE_URL`, `DATA_DIR`, and `CONFIG_PATH` from its own environment (set in `docker-compose.yml`).
+| `DOC_SERVICE_URL` | `http://doc-service:8001` | Internal URL of doc-service (set by docker-compose) |
+| `STORAGE_SERVICE_URL` | `http://storage-service:8020` | Internal URL of storage-service (set by docker-compose) |
 
 ## Development
 

features/ai-service/Dockerfile

@@ -15,8 +15,7 @@ FROM python:3.12-slim
 RUN groupadd --gid 1001 appuser && \
     useradd --uid 1001 --gid 1001 --no-create-home --shell /bin/sh appuser
 
-# Pre-create the config directory with correct ownership
-RUN mkdir -p /config && chown -R appuser:appuser /config
+# No filesystem directories needed — all config goes through storage-service.
 
 WORKDIR /app
 

features/doc-service/Dockerfile

@@ -15,9 +15,9 @@ FROM python:3.12-slim
 RUN groupadd --gid 1001 appuser && \
     useradd --uid 1001 --gid 1001 --no-create-home --shell /bin/sh appuser
 
-# Pre-create data and config dirs with correct ownership.
-# Named volumes mounted over these paths will inherit ownership on first creation.
-RUN mkdir -p /data/documents /data/watch /config && chown -R appuser:appuser /data /config
+# Pre-create watch dir with correct ownership.
+# /data/documents and /config are no longer used — all file/config storage goes through storage-service.
+RUN mkdir -p /data/watch && chown -R appuser:appuser /data
 
 WORKDIR /app
 

features/doc-service/app/routers/documents.py

@@ -29,7 +29,7 @@ from app.schemas.document import (
 from app.schemas.share import DocumentShareCreate, DocumentShareOut, SharedDocumentOut
 from app.services.ai_client import AIServiceError, classify_document
 from app.services.config_reader import load_doc_config
-from app.services.storage import delete_file, download_file, save_upload
+from app.services.storage import delete_file, download_file as storage_download, save_upload
 
 router = APIRouter()
 
@@ -146,7 +146,7 @@ async def process_document(doc_id: str) -> None:
         await db.commit()
 
         try:
-            pdf_bytes = await download_file(doc.storage_key)
+            pdf_bytes = await storage_download(doc.storage_key)
             text = await asyncio.to_thread(_extract_pdf_text, pdf_bytes)
             result = await classify_document(text)
 
@@ -611,7 +611,7 @@ async def download_file(
         raise HTTPException(status_code=404, detail="Document not found")
 
     try:
-        pdf_bytes = await download_file(doc.storage_key)
+        pdf_bytes = await storage_download(doc.storage_key)
     except FileNotFoundError:
         raise HTTPException(status_code=404, detail="File not found in storage")
 

frontend/src/pages/StorageAdminPage.tsx

@@ -1,11 +1,10 @@
-import { useState, useEffect, useRef } from "react";
+import { useState } from "react";
 import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
 import {
   getStorageConfig,
   getMigrationStatus,
   startStorageMigration,
   cancelMigration,
-  updateStorageConfig,
   type StorageBackendConfig,
   type MigrationStatus,
 } from "../api/client";