feat: Implement document management features

- Added a new DocumentsScreen for managing user documents with search and date filtering capabilities.
- Created AddDocumentModal for uploading documents with file selection and custom title options.
- Introduced SiteDocumentsScreen to display documents related to specific construction sites.
- Implemented SitesScreen for listing construction sites with search functionality.
- Updated ProfileScreen to link to the new DocumentsScreen.
- Refactored RangePickerModal for selecting date ranges in document filtering.
- Improved date formatting utilities for better timestamp handling.
- Added necessary API calls for document and site management.
- Updated types to reflect changes in document structure and site information.
- Added expo-document-picker dependency for document selection functionality.

package-lock.json

@@ -16,6 +16,7 @@
         "axios": "^1.13.2",
         "expo": "~54.0.25",
         "expo-constants": "~18.0.10",
+        "expo-document-picker": "~14.0.8",
         "expo-font": "~14.0.9",
         "expo-haptics": "~15.0.7",
         "expo-image": "~3.0.10",
@@ -6442,6 +6443,15 @@
         "react-native": "*"
       }
     },
+    "node_modules/expo-document-picker": {
+      "version": "14.0.8",
+      "resolved": "https://registry.npmjs.org/expo-document-picker/-/expo-document-picker-14.0.8.tgz",
+      "integrity": "sha512-3tyQKpPqWWFlI8p9RiMX1+T1Zge5mEKeBuXWp1h8PEItFMUDSiOJbQ112sfdC6Hxt8wSxreV9bCRl/NgBdt+fA==",
+      "license": "MIT",
+      "peerDependencies": {
+        "expo": "*"
+      }
+    },
     "node_modules/expo-file-system": {
       "version": "19.0.20",
       "resolved": "https://registry.npmjs.org/expo-file-system/-/expo-file-system-19.0.20.tgz",