feat: implement user authentication and logout functionality

- Added login/logout buttons to the HomeScreen and SettingsScreen.
- Integrated authentication state management using Zustand and cookies.
- Updated API to support username and password for login.
- Enhanced PlayScreen to handle video playback based on user authentication.
- Created a new detailStore to manage video details and sources.
- Refactored playerStore to utilize detailStore for episode management.
- Added sourceStore to manage video source toggling.
- Updated settingsStore to fetch server configuration.
- Improved error handling and user feedback with Toast notifications.
- Cleaned up unused code and optimized imports across components.

package.json

@@ -29,6 +29,7 @@
     "@expo/vector-icons": "^14.0.0",
     "@react-native-async-storage/async-storage": "^2.2.0",
     "@react-native-community/netinfo": "^11.3.2",
+    "@react-native-cookies/cookies": "^6.2.1",
     "@react-navigation/native": "^6.0.2",
     "expo": "~51.0.13",
     "expo-av": "~14.0.7",