docs(03): complete Phase 3 Images

- All 4 plans executed successfully
- 5/5 success criteria verified
- CameraCapture replaced with native file input for HTTP compatibility

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docker-compose.dev.yml

@@ -0,0 +1,15 @@
+services:
+  taskplaner-dev:
+    build:
+      context: .
+      dockerfile: Dockerfile.dev
+    ports:
+      - "5173:5173"
+    volumes:
+      # Mount source for hot reload
+      - ./src:/app/src
+      - ./static:/app/static
+      # Mount data directory for SQLite persistence
+      - ./data:/app/data
+    environment:
+      - NODE_ENV=development