TF-4269 Fix Sentry dSYM upload: find xcarchive via find instead of gym_archive_path.txt

lane_context[XCODEBUILD_ARCHIVE] was unreliable — replace with find on
~/Library/Developer/Xcode/Archives to locate the Runner xcarchive directly.

.github/workflows/release.yaml

@@ -162,11 +162,11 @@ jobs:
             exit 1
           fi
 
-          # 3. Read the xcarchive path written by Fastlane after build_app.
+          # 3. Find the xcarchive built by Fastlane.
-          # Fastlane writes lane_context[XCODEBUILD_ARCHIVE] to ios/gym_archive_path.txt.
+          # Xcode always archives to ~/Library/Developer/Xcode/Archives — pick the most recent one.
-          XCARCHIVE=$(cat ios/gym_archive_path.txt 2>/dev/null)
+          XCARCHIVE=$(find "$HOME/Library/Developer/Xcode/Archives" -name "Runner*.xcarchive" -maxdepth 3 2>/dev/null | sort -r | head -1)
           if [ -z "$XCARCHIVE" ] || [ ! -d "$XCARCHIVE" ]; then
-            echo "::error::xcarchive not found. Check that Fastlane wrote gym_archive_path.txt correctly."
+            echo "::error::Runner xcarchive not found in ~/Library/Developer/Xcode/Archives"
             exit 1
           fi
           echo "Found xcarchive: $XCARCHIVE"

ios/.gitignore

@@ -26,9 +26,6 @@ ServiceDefinitions.json
 Runner/GeneratedPluginRegistrant.*
 Flutter/ephemeral/
 
-# Build artifacts generated by Fastlane
-gym_archive_path.txt
-
 # Exceptions to above rules.
 !default.mode1v3
 !default.mode2v3

ios/fastlane/Fastfile

@@ -56,10 +56,6 @@ platform :ios do
       workspace: "Runner.xcworkspace",
       export_method: "app-store"
     )
-    # Write the xcarchive path to a file so CI can locate dSYMs for Sentry upload.
-    # lane_context[XCODEBUILD_ARCHIVE] is set by build_app and contains the exact path.
-    archive_path = Actions.lane_context[SharedValues::XCODEBUILD_ARCHIVE]
-    File.write("gym_archive_path.txt", archive_path.to_s) if archive_path
     upload_to_testflight(
       skip_waiting_for_build_processing: true,
       ipa: "Runner.ipa"