[Spec Kit] Implementation progress

Implements all 88 tasks for the Reaction Image Board (specs/001-reaction-image-board):

- docker-compose.yml: postgres, minio, minio-init, api, ui services with healthchecks
- api/: FastAPI app with SQLAlchemy 2.x async, Alembic migrations, S3/MinIO storage,
  full integration + unit test suite (pytest + pytest-asyncio)
- ui/: Angular 19 standalone app (Library, Upload, Detail, NotFound components)
- .env.example: all required environment variables
- .gitignore: Python, Node, Docker, IDE, .env patterns

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

ui/package.json

@@ -0,0 +1,42 @@
+{
+  "name": "reactbin-ui",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "start": "ng serve",
+    "build": "ng build",
+    "test": "ng test --watch=false --browsers=ChromeHeadless",
+    "lint": "ng lint",
+    "format": "prettier --write \"src/**/*.{ts,html,css,scss}\""
+  },
+  "dependencies": {
+    "@angular/animations": "^19.0.0",
+    "@angular/common": "^19.0.0",
+    "@angular/compiler": "^19.0.0",
+    "@angular/core": "^19.0.0",
+    "@angular/forms": "^19.0.0",
+    "@angular/platform-browser": "^19.0.0",
+    "@angular/platform-browser-dynamic": "^19.0.0",
+    "@angular/router": "^19.0.0",
+    "rxjs": "~7.8.0",
+    "tslib": "^2.3.0",
+    "zone.js": "~0.15.0"
+  },
+  "devDependencies": {
+    "@angular-devkit/build-angular": "^19.0.0",
+    "@angular/cli": "^19.0.0",
+    "@angular/compiler-cli": "^19.0.0",
+    "@types/jasmine": "~5.1.0",
+    "angular-eslint": "^19.0.0",
+    "eslint": "^9.0.0",
+    "jasmine-core": "~5.4.0",
+    "karma": "~6.4.0",
+    "karma-chrome-launcher": "~3.2.0",
+    "karma-coverage": "~2.2.0",
+    "karma-jasmine": "~5.1.0",
+    "karma-jasmine-html-reporter": "~2.1.0",
+    "prettier": "^3.2.0",
+    "typescript": "~5.6.0",
+    "typescript-eslint": "^8.0.0"
+  }
+}