Wire frontend into Docker Compose with type-safe API client

- Add frontend service to docker-compose.yml (port 3000, BACKEND_URL env var)
- Add frontend/Dockerfile using adapter-node for plain Node/Docker runtime
- Switch svelte.config.js from adapter-auto to adapter-node
- Generate OpenAPI types from backend spec (openapi-typescript + openapi-fetch)
- Add src/lib/server/api.ts as server-only typed API client factory
- Add generate:api script to regenerate types when backend spec changes

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

frontend/package.json

@@ -0,0 +1,41 @@
+{
+	"name": "frontend",
+	"private": true,
+	"version": "0.0.1",
+	"type": "module",
+	"scripts": {
+		"dev": "vite dev",
+		"build": "vite build",
+		"preview": "vite preview",
+		"prepare": "svelte-kit sync || echo ''",
+		"check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
+		"check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
+		"test": "vitest run",
+		"test:watch": "vitest",
+		"test:ui": "vitest --ui",
+		"test:e2e": "playwright test",
+		"generate:api": "curl -s http://localhost:8080/v3/api-docs -o src/lib/api/openapi.json && openapi-typescript src/lib/api/openapi.json -o src/lib/api/schema.d.ts"
+	},
+	"devDependencies": {
+		"@playwright/test": "^1.59.1",
+		"@sveltejs/adapter-auto": "^7.0.0",
+		"@sveltejs/adapter-node": "^5.5.4",
+		"@sveltejs/kit": "^2.50.2",
+		"@sveltejs/vite-plugin-svelte": "^6.2.4",
+		"@tailwindcss/vite": "^4.2.2",
+		"@testing-library/jest-dom": "^6.9.1",
+		"@testing-library/svelte": "^5.3.1",
+		"@vitest/ui": "^4.1.2",
+		"jsdom": "^29.0.1",
+		"openapi-typescript": "^7.13.0",
+		"svelte": "^5.54.0",
+		"svelte-check": "^4.4.2",
+		"tailwindcss": "^4.2.2",
+		"typescript": "^5.9.3",
+		"vite": "^7.3.1",
+		"vitest": "^4.1.2"
+	},
+	"dependencies": {
+		"openapi-fetch": "^0.17.0"
+	}
+}