feat: upgrade pubky native bindings to 0.10

[pwltr]

Summary

• Update vendored pubky-core-ffi mobile bindings/artifacts for pubky 0.10.
• Make Grant auth the default JS API for signUp, signIn, startAuthFlow, and awaitAuthApproval.
• Add explicit *Grant and legacy *Cookie methods so the React Native package mirrors the native binding surface.
• Expose parseDeepLink for the new upstream deeplink parser, including Grant auth, direct signup, and Ring secret export links.
• Remove stale iOS session export/docs and update examples for Grant clientId and grant_secret.
• Upgrade the example app to React Native 0.87.0 / React 19.2.3, including iOS pods and Android Gradle/AGP compatibility updates.
• Add an example app parseDeepLink button that logs representative deeplink parser output.
• Bump package version to 0.14.0.

Dependency

Depends on pubky/pubky-core-ffi#27

Verification

• yarn typecheck
• yarn lint
• yarn bob build
• cd example/android && ./gradlew app:installDebug -PreactNativeDevServerPort=8081 -PreactNativeArchitectures=arm64-v8a
• cd example/ios && xcodebuild -workspace PubkyExample.xcworkspace -configuration Debug -scheme PubkyExample -destination 'id=15411FFC-13A5-418B-B02F-A92B133A9355' -quiet build
• git diff --check HEAD
• Packed @synonymdev/[email protected] locally and verified the package includes the updated Android .so and iOS .a binaries
• Verified installed Android binary exposes Grant FFI symbols, including sign_up_grant, sign_in_grant, start_grant_auth_flow, and grant_secret
• Installed the packed package into pubky-ring and ran:
  • yarn typecheck
  • yarn test --runInBand
  • cd ios && xcodebuild -workspace pubkyring.xcworkspace -scheme pubkyring -configuration Debug -sdk iphonesimulator -destination 'platform=iOS Simulator,name=iPhone 17' build
  • cd android && ./gradlew compileDebugKotlin

Notes

• Android install succeeds with AGP deprecation warnings from the RN/AGP 9 toolchain.
• iOS example build succeeds with RN template deprecation warnings and the existing empty NSLocationWhenInUseUsageDescription warning.
• GitHub warns that the vendored iOS static libraries are larger than 50 MB; those artifacts are intentionally tracked for downstream native consumers.