[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/src/app/app.routes.ts

@@ -0,0 +1,24 @@
+import { Routes } from '@angular/router';
+
+export const routes: Routes = [
+  {
+    path: '',
+    loadComponent: () =>
+      import('./library/library.component').then((m) => m.LibraryComponent),
+  },
+  {
+    path: 'upload',
+    loadComponent: () =>
+      import('./upload/upload.component').then((m) => m.UploadComponent),
+  },
+  {
+    path: 'images/:id',
+    loadComponent: () =>
+      import('./detail/detail.component').then((m) => m.DetailComponent),
+  },
+  {
+    path: '**',
+    loadComponent: () =>
+      import('./not-found/not-found.component').then((m) => m.NotFoundComponent),
+  },
+];