fix(ci): stabilize frozen target checks (#104728)

.github/workflows/ci.yml

@@ -1031,6 +1031,8 @@ jobs:
     if: needs.preflight.outputs.run_ui_tests == 'true'
     runs-on: ${{ github.event_name == 'workflow_dispatch' && 'ubuntu-24.04' || (github.repository == 'openclaw/openclaw' && 'blacksmith-4vcpu-ubuntu-2404' || 'ubuntu-24.04') }}
     timeout-minutes: 20
+    env:
+      COMPATIBILITY_TARGET: ${{ needs.preflight.outputs.compatibility_target }}
     steps:
       - *linux_node_checkout_step
       - name: Setup Node environment
@@ -1046,7 +1048,14 @@ jobs:
         run: pnpm lint:ui:no-raw-window-open
 
       - name: Test Control UI
-        run: pnpm --dir ui test
+        run: |
+          if [[ "$COMPATIBILITY_TARGET" == "true" ]]; then
+            # Frozen targets can contain timing-sensitive tests fixed on current main.
+            # Retry only failures once; deterministic regressions still fail twice.
+            pnpm --dir ui test -- --retry=1
+          else
+            pnpm --dir ui test
+          fi
 
   checks-fast-core:
     permissions:
@@ -2082,8 +2091,25 @@ jobs:
             "$swift_tools_dir/swiftformat" --version
             "$swift_tools_dir/swiftlint" version
           elif [[ "$HISTORICAL_TARGET" == "true" ]]; then
-            # Frozen release targets before the pinned installer used Homebrew directly.
-            brew install xcodegen swiftlint swiftformat
+            # Frozen release targets before the pinned installer used SwiftFormat 0.61.1.
+            # Keep their lint contract stable instead of inheriting new Homebrew rules.
+            brew install xcodegen swiftlint
+            swiftformat_version="0.61.1"
+            swiftformat_checksum="b990400779aceb7d7020796eb9ba814d4480543f671d38fc0ff48cb72f04c584"
+            swiftformat_archive="$RUNNER_TEMP/swiftformat-$swiftformat_version.zip"
+            swift_tools_dir="$RUNNER_TEMP/openclaw-legacy-swift-tools"
+            curl --fail --location --silent --show-error --retry 3 \
+              --output "$swiftformat_archive" \
+              "https://github.com/nicklockwood/SwiftFormat/releases/download/$swiftformat_version/swiftformat.zip"
+            if [[ "$(shasum -a 256 "$swiftformat_archive" | awk '{print $1}')" != "$swiftformat_checksum" ]]; then
+              echo "SwiftFormat $swiftformat_version archive checksum mismatch" >&2
+              exit 1
+            fi
+            mkdir -p "$swift_tools_dir"
+            unzip -q "$swiftformat_archive" -d "$swift_tools_dir"
+            chmod +x "$swift_tools_dir/swiftformat"
+            echo "$swift_tools_dir" >> "$GITHUB_PATH"
+            [[ "$("$swift_tools_dir/swiftformat" --version)" == "$swiftformat_version" ]]
           else
             echo "Current CI targets must provide scripts/install-swift-tools.sh." >&2
             exit 1