Revert UI test foreground activation changes back to 56a4d258

Reverts cbb21872, 54ec524a, 10fd323b, 75375ab7, 82a16aa7 — all
attempts to fix display resolution UI test foreground activation
on CI that introduced regressions. Restores the state from the
last fully green CI run (56a4d258).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.github/workflows/ci.yml

@@ -495,24 +495,12 @@ jobs:
           {"helperBinaryPath":"$HELPER_PATH"}
           EOF
 
-          # Retry once — foreground activation on headless CI runners is flaky
-          for attempt in 1 2; do
-            if xcodebuild -project GhosttyTabs.xcodeproj -scheme cmux -configuration Debug \
-              -clonedSourcePackagesDirPath "$SOURCE_PACKAGES_DIR" \
-              -disableAutomaticPackageResolution \
-              -destination "platform=macOS" \
-              -only-testing:cmuxUITests/DisplayResolutionRegressionUITests \
-              test; then
-              exit 0
-            fi
-            if [ "$attempt" -eq 2 ]; then
-              echo "Display resolution UI regression failed after 2 attempts" >&2
-              exit 1
-            fi
-            echo "Attempt $attempt failed, retrying..."
-            pkill -x "cmux DEV" 2>/dev/null || true
-            sleep 3
-          done
+          xcodebuild -project GhosttyTabs.xcodeproj -scheme cmux -configuration Debug \
+            -clonedSourcePackagesDirPath "$SOURCE_PACKAGES_DIR" \
+            -disableAutomaticPackageResolution \
+            -destination "platform=macOS" \
+            -only-testing:cmuxUITests/DisplayResolutionRegressionUITests \
+            test
 
       - name: Run browser find focus UI regression
         run: |