feat(eas): force bun on EAS via custom build configs + 5-build release workflow (#1632)

.eas/build/android-production-apk.yml

@@ -0,0 +1,25 @@
+# Custom EAS Build config for Android phone APK (downloadable artifact).
+# Same bun-forcing flow as android-production.yml, but builds an APK
+# (assembleRelease) instead of an AAB — for sideloading / GitHub artifact.
+# Referenced from eas.json: build.production-apk.android.config
+build:
+  name: Android phone APK (bun)
+  steps:
+    - eas/checkout
+
+    - run:
+        name: Install dependencies (bun, frozen)
+        command: bun install --frozen-lockfile
+
+    - run:
+        name: Prebuild (Android, bun)
+        command: bunx expo prebuild --platform android --no-install
+
+    - eas/configure_android_version
+    - eas/inject_android_credentials
+
+    - eas/run_gradle:
+        inputs:
+          command: :app:assembleRelease
+
+    - eas/find_and_upload_build_artifacts

.eas/build/android-production-tv.yml

@@ -0,0 +1,27 @@
+# Custom EAS Build config for Android TV APK (downloadable artifact).
+# Same bun-forcing flow, with EXPO_TV=1 (set via the profile env in
+# eas.json) so prebuild generates the TV variant. Builds an APK for
+# sideloading onto Android TV devices.
+# Referenced from eas.json: build.production-apk-tv.android.config
+build:
+  name: Android TV APK (bun)
+  steps:
+    - eas/checkout
+
+    - run:
+        name: Install dependencies (bun, frozen)
+        command: bun install --frozen-lockfile
+
+    # EXPO_TV=1 comes from the profile env, so prebuild targets Android TV.
+    - run:
+        name: Prebuild (Android TV, bun)
+        command: bunx expo prebuild --platform android --no-install
+
+    - eas/configure_android_version
+    - eas/inject_android_credentials
+
+    - eas/run_gradle:
+        inputs:
+          command: :app:assembleRelease
+
+    - eas/find_and_upload_build_artifacts

.eas/build/android-production.yml

@@ -0,0 +1,38 @@
+# Custom EAS Build config for Android (production AAB).
+#
+# Why this exists: EAS's managed build can't detect Bun's text lockfile
+# (bun.lock) and falls back to yarn, which breaks our install. The managed
+# steps `eas/install_node_modules` and `eas/prebuild` both use "the package
+# manager detected based on your project", so we replace them with explicit
+# `bun` commands. Everything else uses EAS's built-in functions so we still
+# get remote versioning, credentials, and artifact upload.
+#
+# Referenced from eas.json: build.production.android.config = android-production.yml
+build:
+  name: Android production (bun)
+  steps:
+    - eas/checkout
+
+    - run:
+        name: Install dependencies (bun, frozen)
+        command: bun install --frozen-lockfile
+
+    # android/ is gitignored, so generate native code fresh. --no-install
+    # because deps are already installed above; bunx keeps it on bun.
+    - run:
+        name: Prebuild (Android, bun)
+        command: bunx expo prebuild --platform android --no-install
+
+    # Applies the EAS-resolved remote versionCode/versionName (autoIncrement
+    # in eas.json) into the freshly prebuilt android/ project.
+    - eas/configure_android_version
+
+    # Injects the remote Android keystore / signing config.
+    - eas/inject_android_credentials
+
+    # Build the Play Store app bundle (.aab).
+    - eas/run_gradle:
+        inputs:
+          command: :app:bundleRelease
+
+    - eas/find_and_upload_build_artifacts

.eas/build/ios-production.yml

@@ -0,0 +1,44 @@
+# Custom EAS Build config for iOS + tvOS (App Store), forcing bun.
+#
+# Shared by both the iPhone profile (production) and the tvOS profile
+# (production_tv). The profile decides the rest:
+#   - production_tv sets EXPO_TV=1 (env) so prebuild targets tvOS, and
+#     credentialsSource: local (EAS can't manage tvOS creds remotely).
+#   - production uses remote-managed iOS credentials.
+#
+# Like the Android configs, this replaces eas/install_node_modules and
+# eas/prebuild (both auto-detect the wrong package manager) with explicit
+# bun commands, and keeps EAS built-ins for credentials/version/fastlane.
+build:
+  name: iOS/tvOS App Store (bun)
+  steps:
+    - eas/checkout
+
+    - run:
+        name: Install dependencies (bun, frozen)
+        command: bun install --frozen-lockfile
+
+    - eas/resolve_apple_team_id_from_credentials:
+        id: resolve_team
+
+    # android/ + ios/ are gitignored, so generate native code fresh.
+    # EXPO_TV (from the profile env) selects iPhone vs tvOS. --no-install
+    # skips JS + pod install; we install pods explicitly below with bun deps.
+    - run:
+        name: Prebuild (iOS/tvOS, bun)
+        command: bunx expo prebuild --platform ios --no-install
+
+    - run:
+        name: Install CocoaPods
+        working_directory: ./ios
+        command: pod install
+
+    - eas/configure_ios_credentials
+    - eas/configure_ios_version
+
+    - eas/generate_gymfile_from_template:
+        inputs:
+          credentials: ${ eas.job.secrets.buildCredentials }
+
+    - eas/run_fastlane
+    - eas/find_and_upload_build_artifacts