feat: add comprehensive testing infrastructure

- Add Vitest for unit testing across all packages
- Add Playwright for E2E testing
- Add sample tests for API, Web, and Shared packages
- Configure Gitea Actions CI/CD workflows (ci, e2e, security, docker)
- Add testing documentation (TESTING.md)
- Add Gitea Actions setup guide
- Update .gitignore for test artifacts
- Add test environment configuration

packages/api/package.json

@@ -7,6 +7,10 @@
     "dev": "tsx watch src/index.ts",
     "build": "tsc",
     "start": "node dist/index.js",
+    "test": "vitest run",
+    "test:watch": "vitest",
+    "test:ui": "vitest --ui",
+    "test:coverage": "vitest run --coverage",
     "prisma:generate": "prisma generate",
     "prisma:migrate": "prisma migrate dev",
     "prisma:studio": "prisma studio",
@@ -30,11 +34,16 @@
     "@types/cors": "^2.8.17",
     "@types/multer": "^1.4.11",
     "@types/node": "^20.10.6",
+    "@types/supertest": "^6.0.2",
     "prisma": "^5.8.0",
     "tsx": "^4.7.0",
     "typescript": "^5.3.3",
     "eslint": "^8.56.0",
     "@typescript-eslint/eslint-plugin": "^6.17.0",
-    "@typescript-eslint/parser": "^6.17.0"
+    "@typescript-eslint/parser": "^6.17.0",
+    "vitest": "^1.2.0",
+    "@vitest/ui": "^1.2.0",
+    "@vitest/coverage-v8": "^1.2.0",
+    "supertest": "^6.3.4"
   }
 }