[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/angular.json

@@ -0,0 +1,80 @@
+{
+  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
+  "version": 1,
+  "newProjectRoot": "projects",
+  "projects": {
+    "reactbin-ui": {
+      "projectType": "application",
+      "schematics": {
+        "@schematics/angular:component": {
+          "standalone": true,
+          "changeDetection": "OnPush"
+        }
+      },
+      "root": "",
+      "sourceRoot": "src",
+      "prefix": "app",
+      "architect": {
+        "build": {
+          "builder": "@angular-devkit/build-angular:application",
+          "options": {
+            "outputPath": "dist/reactbin-ui",
+            "index": "src/index.html",
+            "browser": "src/main.ts",
+            "polyfills": ["zone.js"],
+            "tsConfig": "tsconfig.app.json",
+            "assets": [
+              { "glob": "**/*", "input": "public" }
+            ],
+            "styles": ["src/styles.css"],
+            "scripts": []
+          },
+          "configurations": {
+            "production": {
+              "budgets": [
+                { "type": "initial", "maximumWarning": "500kB", "maximumError": "1MB" },
+                { "type": "anyComponentStyle", "maximumWarning": "4kB", "maximumError": "8kB" }
+              ],
+              "outputHashing": "all"
+            },
+            "development": {
+              "optimization": false,
+              "extractLicenses": false,
+              "sourceMap": true
+            }
+          },
+          "defaultConfiguration": "production"
+        },
+        "serve": {
+          "builder": "@angular-devkit/build-angular:dev-server",
+          "configurations": {
+            "production": { "buildTarget": "reactbin-ui:build:production" },
+            "development": { "buildTarget": "reactbin-ui:build:development" }
+          },
+          "defaultConfiguration": "development",
+          "options": {
+            "proxyConfig": "proxy.conf.json"
+          }
+        },
+        "test": {
+          "builder": "@angular-devkit/build-angular:karma",
+          "options": {
+            "polyfills": ["zone.js", "zone.js/testing"],
+            "tsConfig": "tsconfig.spec.json",
+            "assets": [
+              { "glob": "**/*", "input": "public" }
+            ],
+            "styles": ["src/styles.css"],
+            "scripts": []
+          }
+        },
+        "lint": {
+          "builder": "@angular-eslint/builder:lint",
+          "options": {
+            "lintFilePatterns": ["src/**/*.ts", "src/**/*.html"]
+          }
+        }
+      }
+    }
+  }
+}