refactor(App, navigation): migrate to Expo Router and clean up navigation structure

- Updated App entry point to utilize Expo Router, simplifying the navigation setup.
- Removed legacy navigation components and services to streamline the codebase.
- Adjusted package.json to reflect the new entry point and updated dependencies for compatibility.
- Enhanced overall application structure by consolidating navigation logic and improving maintainability.

package-lock.json

@@ -19,7 +19,8 @@
         "axios": "^1.13.6",
         "date-fns": "^4.1.0",
         "expo": "~55.0.4",
-        "expo-background-fetch": "~55.0.9",
+        "expo-background-fetch": "~55.0.10",
+        "expo-background-task": "~55.0.10",
         "expo-camera": "^55.0.10",
         "expo-constants": "~55.0.7",
         "expo-dev-client": "~55.0.10",
@@ -5542,6 +5543,18 @@
         "expo": "*"
       }
     },
+    "node_modules/expo-background-task": {
+      "version": "55.0.10",
+      "resolved": "https://registry.npmmirror.com/expo-background-task/-/expo-background-task-55.0.10.tgz",
+      "integrity": "sha512-mkwdS8T34P0pSphr08yv9lsQ6pd1pMgFdVq0wd3Ane3h5heZj/il6mes/b8OQDoxtD3mLFj7yKDYOU9dAwSrJA==",
+      "license": "MIT",
+      "dependencies": {
+        "expo-task-manager": "~55.0.10"
+      },
+      "peerDependencies": {
+        "expo": "*"
+      }
+    },
     "node_modules/expo-camera": {
       "version": "55.0.10",
       "resolved": "https://registry.npmmirror.com/expo-camera/-/expo-camera-55.0.10.tgz",