chore: bump app version and update Android/iOS build tooling

- Bump version to 2026.0613.2+57
- Gradle wrapper 8.12 -> 8.14; Flutter migrator flags (builtInKotlin/newDsl)
  and relax kotlin.jvm.target.validation to warning for third-party plugins
- Refresh iOS Xcode project, scheme, Info.plist, Podfile.lock and SwiftPM
  Package.resolved

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

pubspec.lock

@@ -883,10 +883,10 @@ packages:
     dependency: transitive
     description:
       name: meta
-      sha256: "23f08335362185a5ea2ad3a4e597f1375e78bce8a040df5c600c8d3552ef2394"
+      sha256: "1741988757a65eb6b36abe716829688cf01910bbf91c34354ff7ec1c3de2b349"
       url: "https://pub.dev"
     source: hosted
-    version: "1.17.0"
+    version: "1.18.0"
   mgrs_dart:
     dependency: transitive
     description:
@@ -1456,10 +1456,10 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: "8161c84903fd860b26bfdefb7963b3f0b68fee7adea0f59ef805ecca346f0c7a"
+      sha256: "949a932224383300f01be9221c39180316445ecb8e7547f70a41a35bf421fb9e"
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.10"
+    version: "0.7.11"
   timezone:
     dependency: "direct main"
     description: