Fix Android release build and verify on emulator

- Disable Kotlin incremental compilation (kotlin.incremental=false): the
  project lives on D: while Gradle's Kotlin daemon caches default to C:,
  which crashes with "this and base files have different roots" when
  closing incremental caches.
- Drop flutter_map_tile_caching for now: it pins objectbox_flutter_libs
  ^4.1.0, which fails checkReleaseAarMetadata against newer AndroidX
  transitive deps (needs compileSdk 34+, itself built against android-31).
  Not used in code yet, so deferred rather than forcing an unverified
  dependency_override.
- Add web/ platform for fast local UI iteration without an emulator.
- Ignore .claude/ (Claude Code session state, not project content).

Verified: flutter analyze, flutter test, and a real release build running
on a newly created Pixel_10a-profile Android emulator (API 36).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

app/pubspec.lock

@@ -273,14 +273,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.1.1"
-  flat_buffers:
-    dependency: transitive
-    description:
-      name: flat_buffers
-      sha256: "380bdcba5664a718bfd4ea20a45d39e13684f5318fcd8883066a55e21f37f4c3"
-      url: "https://pub.dev"
-    source: hosted
-    version: "23.5.26"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -318,14 +310,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "8.3.1"
-  flutter_map_tile_caching:
-    dependency: "direct main"
-    description:
-      name: flutter_map_tile_caching
-      sha256: "90e097223d8ab74425cf15b449a03adfa4d4c28406dc757e1c396aff0f9beba7"
-      url: "https://pub.dev"
-    source: hosted
-    version: "10.1.1"
   flutter_riverpod:
     dependency: "direct main"
     description:
@@ -576,22 +560,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.0.2"
-  objectbox:
-    dependency: transitive
-    description:
-      name: objectbox
-      sha256: "3cc186749178a3556e1020c9082d0897d0f9ecbdefcc27320e65c5bc650f0e57"
-      url: "https://pub.dev"
-    source: hosted
-    version: "4.3.1"
-  objectbox_flutter_libs:
-    dependency: transitive
-    description:
-      name: objectbox_flutter_libs
-      sha256: cd754766e04229a4f51250f121813d9a3c1a74fc21cd68e48b3c6085cbcd6c85
-      url: "https://pub.dev"
-    source: hosted
-    version: "4.3.1"
   objective_c:
     dependency: transitive
     description: