chore(android): record v1.0.8 build 51

AAB sha256 4893ee6f64f90bb1b2e1f13c6b088cbe75103337fbc101751da7076224778c29
verified: com.sauci.app 1.0.8 (51), production upload key, four ABIs,
Worklets/Reanimated/Skia libraries, no broad media read permissions,
production OTA endpoint, channel, and code-signing certificate. Supersedes
the build 50 artifact, which predated the skia 2.6.9 bump and the
expo-av migration and was quarantined unshipped.

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

apps/mobile/app.json

@@ -187,7 +187,7 @@
         "backgroundColor": "#1a1a2e"
       },
       "package": "com.sauci.app",
-      "versionCode": 50,
+      "versionCode": 51,
       "googleServicesFile": "./google-services.json",
       "permissions": [
         "RECEIVE_BOOT_COMPLETED",