feat(playwright-cli): add comprehensive test generation, tracing, and video recording documentation

- Introduced detailed documentation for test generation workflow in Playwright CLI, covering planning, generating, and healing tests.
- Added tracing capabilities documentation, including usage, output files, and best practices for debugging and performance analysis.
- Included video recording instructions, emphasizing best practices for capturing browser automation sessions with chapter markers and overlays.
- Implemented user tutorial authentication setup and tutorial tests for parent mode in the E2E testing framework.
- Created JSON files for user tutorial state management, ensuring isolated test environments.

frontend/e2e/.auth/user.json

@@ -2,20 +2,20 @@
   "cookies": [
     {
       "name": "refresh_token",
-      "value": "5-wHHNkUIcILfUZqXFDTiggTIE4F_rhifieI07DQ6WQ",
+      "value": "zFYZnbIZmC4uH9DcQ3PO8WPPAy_IOts57gvbCMERHvw",
       "domain": "localhost",
       "path": "/api/auth",
-      "expires": 1791672151.681425,
+      "expires": 1791760813.448801,
       "httpOnly": true,
       "secure": true,
       "sameSite": "Strict"
     },
     {
       "name": "access_token",
-      "value": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJlbWFpbCI6ImUyZUB0ZXN0LmNvbSIsInVzZXJfaWQiOiIyNTgxZmQwOS05OTMxLTQ3ZTctYmRkYi00MjEwZmQxM2U1MDkiLCJ0b2tlbl92ZXJzaW9uIjowLCJleHAiOjE3ODM5MDY5NTF9.8qvDLe203vx2YOUnzAoOmBDcT6uov4HhsM5o00UseMg",
+      "value": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJlbWFpbCI6ImUyZUB0ZXN0LmNvbSIsInVzZXJfaWQiOiIzNDkyZjAyMi0yMDdiLTRjMjMtYWFlYy1lMmNjNzc0N2IxYjAiLCJ0b2tlbl92ZXJzaW9uIjowLCJleHAiOjE3ODM5OTU2MTN9.PM5XaijvAuzEPSY3Mz1DB1jvYTJDeaMhGZnrYukUJ0Q",
       "domain": "localhost",
       "path": "/",
-      "expires": 1783906951.68138,
+      "expires": 1783995613.448755,
       "httpOnly": true,
       "secure": true,
       "sameSite": "Lax"
@@ -27,11 +27,11 @@
       "localStorage": [
         {
           "name": "authSyncEvent",
-          "value": "{\"type\":\"logout\",\"at\":1783896151561}"
+          "value": "{\"type\":\"logout\",\"at\":1783984813329}"
         },
         {
           "name": "parentAuth",
-          "value": "{\"expiresAt\":1784068951811}"
+          "value": "{\"expiresAt\":1784157613579}"
         }
       ]
     }