fix: preserve device sessions while runner is offline (#123477)

* fix(runners): recover offline device placements

* test(runners): model reclaimed launch dispatch

* ci: serialize macOS Swift test retries

* test: wait for steering subscription readiness

* fix(gateway): restore authority-safe steering

* test(gateway): align authority projector fixture

* fix(gateway): dispatch leaf authority mismatches

* refactor: keep authority overlay contract leaf-only

* test(ui): close place popover before details

.github/workflows/ci.yml

@@ -3511,15 +3511,16 @@ jobs:
         run: |
           set -euo pipefail
           swift_test_args=(--package-path apps/macos --enable-code-coverage)
-          # Hosted release and retry runs have shown test-process contention;
-          # keep the faster first-attempt Blacksmith path parallel.
-          if [[ "$SWIFT_TEST_EXECUTION" == "parallel" ]]; then
-            swift_test_args+=(--parallel)
-          else
-            swift_test_args+=(--no-parallel)
-          fi
           for attempt in 1 2 3; do
-            if swift test "${swift_test_args[@]}"; then
+            attempt_args=("${swift_test_args[@]}")
+            # Keep the fast first-attempt Blacksmith path parallel, but make
+            # in-job retries serial after any contention-driven failure.
+            if [[ "$SWIFT_TEST_EXECUTION" == "parallel" && "$attempt" -eq 1 ]]; then
+              attempt_args+=(--parallel)
+            else
+              attempt_args+=(--no-parallel)
+            fi
+            if swift test "${attempt_args[@]}"; then
               exit 0
             fi
             echo "swift test failed (attempt $attempt/3). Retrying…"