fix(mobile): track-player RN 0.79 compat + fmt consteval for Xcode 26 (#14397)

## Summary

#14396 unblocked the runner + hermesc issues. The binary build matrix
now actually compiles and surfaces two real upstream-library
incompatibilities with React Native 0.79 + Xcode 26 in [run
26320122339](https://github.com/AudiusProject/apps/actions/runs/26320122339).

### 1. Android RC + Prod — \`react-native-track-player@4.0.1\` is
incompatible with RN 0.79

Kotlin compile error at \`react-native-track-player\` against the
updated \`HeadlessJsTaskService\` in RN 0.79:

\`\`\`
e:
file://.../react-native-track-player/android/src/main/java/com/doublesymmetry/trackplayer/service/MusicService.kt:764:5
   'onBind' overrides nothing.
\`\`\`

RN 0.79's
[\`HeadlessJsTaskService.kt:58\`](https://github.com/facebook/react-native/blob/0.79-stable/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/HeadlessJsTaskService.kt#L58)
now declares:

\`\`\`kotlin
override fun onBind(intent: Intent): IBinder? = null
\`\`\`

but \`react-native-track-player@4.0.1\` still has the pre-0.79
signature:

\`\`\`kotlin
override fun onBind(intent: Intent?): IBinder
\`\`\`

Kotlin allows covariant return types but not contravariant parameter
types — \`Intent?\` ≠ \`Intent\` for override matching, so the compiler
errors. \`react-native-track-player@4.1.2\` already matches RN 0.79's
signature, so bumping the dep is the fix.

- \`packages/mobile/package.json\`: \`4.0.1\` → \`4.1.2\`
- \`package-lock.json\` regenerated to match.

### 2. iOS RC + Prod — \`fmt 11.0.2\` consteval fails under Xcode 26 /
Apple Clang

xcodebuild archive failed compiling the \`fmt\` Pod:

\`\`\`
Pods/fmt/include/fmt/format-inl.h:59: error: call to consteval function
'fmt::basic_format_string<...>' is not a constant expression
   59 |   fmt::format_to(it, FMT_STRING("{}{}"), message, SEP);
\`\`\`

RN 0.79 pins fmt 11.0.2 via
[\`third-party-podspecs/fmt.podspec\`](https://github.com/facebook/react-native/blob/0.79-stable/packages/react-native/third-party-podspecs/fmt.podspec).
Apple Clang in Xcode 26 enforces stricter \`consteval\` evaluation than
11.0.2 was written against. Fixed upstream in fmt 11.1+ (RN 0.80 picks
up the newer fmt); for 0.79 the standard workaround is
\`-DFMT_USE_CONSTEVAL=0\`, which falls back to the constexpr
implementation.

Add a Podfile post_install hook that injects \`FMT_USE_CONSTEVAL=0\`
into \`GCC_PREPROCESSOR_DEFINITIONS\` for the \`fmt\` target only. CI's
existing \`bundle exec pod install\` step picks up the change with no
lockfile churn.

### Re-trigger the release flow
- \`packages/mobile/package.json\`: \`1.5.183\` → \`1.5.184\`
- iOS \`Info.plist\` \`CFBundleShortVersionString\`: \`1.1.196\` →
\`1.1.197\`
- Android \`versionName\`: \`1.1.532\` → \`1.1.533\`

## Test plan
- [ ] Merge → version-check fires all 4 binary jobs
- [ ] Android RC + Prod pass Kotlin compile and reach \`fastlane
releaseCandidate\` / \`prod\` (no \`onBind overrides nothing\`)
- [ ] iOS RC + Prod compile \`fmt\` cleanly under Xcode 26 (no
\`consteval\` error) and reach \`pilot\`
- [ ] Slack notifications fire on success

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

---------

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

Author: raymondjacobson

package-lock.json

@@ -134,7 +134,7 @@ android {
         // versionCode is automatically incremented in CI
         versionCode 1
         // Make sure this is above the currently released Android version in the play store if your changes touch native code:
-        versionName "1.1.532"
+        versionName "1.1.533"
         resValue "string", "build_config_package", "co.audius.app"
         resConfigs "en"
     }

packages/mobile/android/app/build.gradle

@@ -17,7 +17,7 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.1.196</string>
+	<string>1.1.197</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleURLTypes</key>

packages/mobile/ios/AudiusReactNative/Info.plist

@@ -97,6 +97,22 @@ target 'AudiusReactNative' do
       end
     end
 
+    # Xcode 26 / Apple Clang enforces stricter consteval evaluation, which
+    # breaks the fmt 11.0.2 that React Native 0.79 pins:
+    #   Pods/fmt/include/fmt/format-inl.h:59: error: call to consteval
+    #   function 'fmt::basic_format_string<...>' is not a constant expression
+    # FMT_USE_CONSTEVAL=0 forces the constexpr fallback. Fixed upstream in
+    # fmt 11.1+ / RN 0.80; this is a stopgap until we upgrade RN.
+    installer.pods_project.targets.each do |target|
+      next unless target.name == 'fmt'
+      target.build_configurations.each do |config|
+        defs = config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] || ['$(inherited)']
+        defs = [defs] unless defs.is_a?(Array)
+        defs << 'FMT_USE_CONSTEVAL=0' unless defs.include?('FMT_USE_CONSTEVAL=0')
+        config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] = defs
+      end
+    end
+
   end
 end
 

packages/mobile/ios/Podfile

@@ -1,6 +1,6 @@
 {
   "name": "@audius/mobile",
-  "version": "1.5.183",
+  "version": "1.5.184",
   "private": true,
   "scripts": {
     "android:dev": "ENVFILE=.env.dev turbo run android -- --mode=prodDebug",
@@ -149,7 +149,7 @@
     "react-native-svg": "^15.11.2",
     "react-native-svg-transformer": "1.5.0",
     "react-native-tab-view": "4.2.0",
-    "react-native-track-player": "4.0.1",
+    "react-native-track-player": "4.1.2",
     "react-native-url-polyfill": "2.0.0",
     "react-native-version-number": "0.3.6",
     "react-native-video": "6.18.0",