restore(mobile): restore mobile/ directory to pre-d2217531 state

Restored mobile/ from d22175310a711e7ebdd8062ae29a54f0136dc3f6^
(parent commit d94e9ca4bc).

Commit d22175310a (google-labs-jules[bot], 2026-03-23T14:45:22Z) introduced
an SSRF security fix for IMAP connections but unintentionally deleted or
truncated a large number of files across the repository, including 24 files
under mobile/.

This commit targets only the mobile/ directory and restores the following
files to their pre-d2217531 state:

- mobile/README.md
- mobile/app.json
- mobile/app/(tabs)/_layout.tsx
- mobile/app/(tabs)/file-detail.tsx  (re-added)
- mobile/app/+not-found.tsx          (re-added)
- mobile/app/_layout.tsx
- mobile/eslint.config.js            (re-added)
- mobile/package-lock.json
- mobile/package.json
- mobile/src/context/ShareContext.tsx
- mobile/src/i18n/de.json            (re-added)
- mobile/src/i18n/en.json            (re-added)
- mobile/src/i18n/es.json            (re-added)
- mobile/src/i18n/fr.json            (re-added)
- mobile/src/i18n/index.ts           (re-added)
- mobile/src/i18n/it.json            (re-added)
- mobile/src/screens/FileDetailScreen.tsx (re-added)
- mobile/src/screens/FilesScreen.tsx
- mobile/src/screens/LoginScreen.tsx
- mobile/src/screens/ProfileScreen.tsx
- mobile/src/screens/UploadScreen.tsx
- mobile/src/screens/WelcomeScreen.tsx
- mobile/src/services/api.ts
- mobile/src/utils/mimeTypes.ts      (re-added)
- mobile/src/utils/normalizeUri.ts   (re-added)

Security fixes introduced by d2217531 that are unrelated to mobile/
(IMAP SSRF fix in app/utils/network.py and app/tasks/imap_tasks.py)
are preserved — this restore targets only files under mobile/.

mobile/app.json

@@ -22,9 +22,9 @@
         "NSCameraUsageDescription": "DocuElevate uses the camera to scan QR codes for login and to capture documents for upload.",
         "NSPhotoLibraryUsageDescription": "DocuElevate accesses your photo library to select documents for upload.",
         "NSPhotoLibraryAddUsageDescription": "DocuElevate saves scanned documents to your photo library.",
-        "UIBackgroundModes": ["fetch", "remote-notification"],
+        "UIBackgroundModes": ["remote-notification"],
         "ITSAppUsesNonExemptEncryption": false,
-        "LSSupportsOpeningDocumentsInPlace": true,
+        "LSSupportsOpeningDocumentsInPlace": false,
         "CFBundleDocumentTypes": [
           {
             "CFBundleTypeName": "All Documents",
@@ -86,7 +86,29 @@
         "expo-build-properties",
         {
           "ios": {
-            "buildReactNativeFromSource": true
+            "buildReactNativeFromSource": true,
+            "privacyManifests": {
+              "NSPrivacyAccessedAPITypes": [
+                {
+                  "NSPrivacyAccessedAPIType": "NSPrivacyAccessedAPICategoryUserDefaults",
+                  "NSPrivacyAccessedAPITypeReasons": ["CA92.1"]
+                },
+                {
+                  "NSPrivacyAccessedAPIType": "NSPrivacyAccessedAPICategoryFileTimestamp",
+                  "NSPrivacyAccessedAPITypeReasons": ["C617.1"]
+                },
+                {
+                  "NSPrivacyAccessedAPIType": "NSPrivacyAccessedAPICategoryDiskSpace",
+                  "NSPrivacyAccessedAPITypeReasons": ["E174.1"]
+                },
+                {
+                  "NSPrivacyAccessedAPIType": "NSPrivacyAccessedAPICategorySystemBootTime",
+                  "NSPrivacyAccessedAPITypeReasons": ["35F9.1"]
+                }
+              ],
+              "NSPrivacyCollectedDataTypes": [],
+              "NSPrivacyTracking": false
+            }
           }
         }
       ],