Add contractor sharing feature and move settings to navigation bar

Contractor Sharing:
- Add .casera file format for sharing contractors between users
- Create SharedContractor model with JSON serialization
- Implement ContractorSharingManager for iOS (Swift) and Android (Kotlin)
- Register .casera file type in iOS Info.plist and Android manifest
- Add share button to ContractorDetailView (iOS) and ContractorDetailScreen (Android)
- Add import confirmation, success, and error dialogs
- Create expect/actual platform implementations for sharing and import handling

Navigation Changes:
- Remove Profile tab from bottom tab bar (iOS and Android)
- Add settings gear icon to left side of "My Properties" title
- Settings gear opens Profile/Settings screen as sheet (iOS) or navigates (Android)
- Add property button to top right action bar

Bug Fixes:
- Fix ResidenceUsersResponse to match API's flat array response format
- Fix GenerateShareCodeResponse handling to access nested shareCode property
- Update ManageUsersDialog to accept residenceOwnerId parameter

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

iosApp/iosApp/Localizable.xcstrings

@@ -39,6 +39,10 @@
         }
       }
     },
+    "%@ has been added to your contacts." : {
+      "comment" : "A message displayed when a contractor is successfully imported to the user's contacts. The placeholder is replaced with the name of the imported contractor.",
+      "isCommentAutoGenerated" : true
+    },
     "%@, %@" : {
       "comment" : "A city and state combination.",
       "isCommentAutoGenerated" : true,
@@ -4747,6 +4751,17 @@
         }
       }
     },
+    "common_import" : {
+      "extractionState" : "manual",
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Import"
+          }
+        }
+      }
+    },
     "common_loading" : {
       "extractionState" : "manual",
       "localizations" : {
@@ -5072,6 +5087,17 @@
         }
       }
     },
+    "common_share" : {
+      "extractionState" : "manual",
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Share"
+          }
+        }
+      }
+    },
     "common_success" : {
       "extractionState" : "manual",
       "localizations" : {
@@ -5229,6 +5255,9 @@
     },
     "Continue with Free" : {
 
+    },
+    "Contractor Imported" : {
+
     },
     "Contractors" : {
       "comment" : "A tab label for the contractors section.",
@@ -17315,6 +17344,18 @@
         }
       }
     },
+    "Import" : {
+      "comment" : "The text on a button that triggers the import action.",
+      "isCommentAutoGenerated" : true
+    },
+    "Import Contractor" : {
+      "comment" : "The title of an alert dialog that appears when a user attempts to import a contractor.",
+      "isCommentAutoGenerated" : true
+    },
+    "Import Failed" : {
+      "comment" : "A dialog title when importing a contractor fails.",
+      "isCommentAutoGenerated" : true
+    },
     "In Progress" : {
       "comment" : "A label displayed next to an image of a play button, indicating that a task is currently in progress.",
       "isCommentAutoGenerated" : true
@@ -17381,6 +17422,10 @@
       "comment" : "A message displayed when no task templates match a search query.",
       "isCommentAutoGenerated" : true
     },
+    "OK" : {
+      "comment" : "A button that dismisses the success dialog.",
+      "isCommentAutoGenerated" : true
+    },
     "or" : {
 
     },
@@ -17406,10 +17451,6 @@
       "comment" : "The title of the \"Pro\" plan in the feature comparison view.",
       "isCommentAutoGenerated" : true
     },
-    "Profile" : {
-      "comment" : "A label for the \"Profile\" tab in the main tab view.",
-      "isCommentAutoGenerated" : true
-    },
     "profile_account" : {
       "extractionState" : "manual",
       "localizations" : {
@@ -29636,6 +29677,10 @@
       "comment" : "The title of the welcome screen in the preview.",
       "isCommentAutoGenerated" : true
     },
+    "Would you like to import this contractor to your contacts?" : {
+      "comment" : "A message displayed in an alert when a user imports a contractor.",
+      "isCommentAutoGenerated" : true
+    },
     "You now have full access to all Pro features!" : {
       "comment" : "A message displayed to users after successfully upgrading to the Pro version of the app.",
       "isCommentAutoGenerated" : true