Add user authentication, RBAC, and improved recruiter dashboard

- JWT-based auth with access tokens (15m) and refresh tokens (7d)
- User registration, login, logout, and /auth/me endpoints
- Three roles: admin, recruiter, hiring_manager with middleware enforcement
- users and refresh_tokens tables with bcrypt password hashing
- Login and Register pages with full form validation
- Protected routes — unauthenticated users redirect to /login
- Dashboard upgraded: real metrics, pipeline overview with progress bars,
  recent activity feed with 30s polling, and quick-action cards
- Dashboard API endpoints: /api/dashboard/metrics, pipeline-summary, recent-activity

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

client/package.json

@@ -9,28 +9,29 @@
     "preview": "vite preview"
   },
   "dependencies": {
-    "react": "^19.0.0",
-    "react-dom": "^19.0.0",
-    "react-router-dom": "^7.1.0",
-    "class-variance-authority": "^0.7.1",
-    "clsx": "^2.1.1",
-    "tailwind-merge": "^2.6.0",
-    "lucide-react": "^0.469.0",
-    "@radix-ui/react-slot": "^1.1.1",
-    "@radix-ui/react-separator": "^1.1.1",
     "@radix-ui/react-dialog": "^1.1.4",
     "@radix-ui/react-label": "^2.1.1",
     "@radix-ui/react-select": "^2.1.4",
+    "@radix-ui/react-separator": "^1.1.1",
+    "@radix-ui/react-slot": "^1.1.1",
     "@radix-ui/react-tabs": "^1.1.2",
-    "@radix-ui/react-toast": "^1.2.4"
+    "@radix-ui/react-toast": "^1.2.4",
+    "class-variance-authority": "^0.7.1",
+    "clsx": "^2.1.1",
+    "lucide-react": "^0.469.0",
+    "radix-ui": "^1.4.3",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
+    "react-router-dom": "^7.1.0",
+    "tailwind-merge": "^2.6.0"
   },
   "devDependencies": {
+    "@tailwindcss/vite": "^4.0.0",
     "@types/react": "^19.0.0",
     "@types/react-dom": "^19.0.0",
     "@vitejs/plugin-react": "^4.3.4",
-    "typescript": "~5.7.0",
-    "vite": "^6.0.0",
     "tailwindcss": "^4.0.0",
-    "@tailwindcss/vite": "^4.0.0"
+    "typescript": "~5.7.0",
+    "vite": "^6.0.0"
   }
 }