feat: add initial project configuration and smoke tests

- Created pnpm workspace configuration to manage packages.
- Added a placeholder .gitkeep file in the scripts directory.
- Implemented a smoke test script to validate core API and web endpoints.
- Established TypeScript base configuration for consistent compilation settings.
- Introduced Turbo configuration for task management and build processes.

packages/web/package.json

@@ -0,0 +1,40 @@
+{
+  "name": "@davinci/web",
+  "version": "0.1.0-alpha.0",
+  "description": "Davinci Platform — Next.js frontend (App Router)",
+  "author": "Galaxis",
+  "private": true,
+  "license": "UNLICENSED",
+  "scripts": {
+    "dev": "next dev --port 3000",
+    "build": "next build",
+    "start": "next start",
+    "test": "vitest run",
+    "test:unit": "vitest run",
+    "test:cov": "vitest run --coverage",
+    "lint": "eslint \"src/**/*.{ts,tsx}\""
+  },
+  "dependencies": {
+    "@davinci/shared": "workspace:*",
+    "clsx": "^2.1.0",
+    "next": "^15.5.10",
+    "next-intl": "^4.0.0",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
+    "tailwind-merge": "^3.0.0"
+  },
+  "devDependencies": {
+    "@tailwindcss/postcss": "^4.0.0",
+    "@testing-library/jest-dom": "^6.6.0",
+    "@testing-library/react": "^16.1.0",
+    "@types/node": "^22.10.0",
+    "@types/react": "^19.0.0",
+    "@types/react-dom": "^19.0.0",
+    "@vitejs/plugin-react": "^4.3.0",
+    "jsdom": "^28.1.0",
+    "postcss": "^8.4.0",
+    "tailwindcss": "^4.0.0",
+    "typescript": "^5.7.0",
+    "vitest": "^3.0.0"
+  }
+}