Run version memory guard in CI

.github/workflows/release.yml

@@ -134,6 +134,14 @@ jobs:
             -clonedSourcePackagesDirPath .spm-cache \
             CODE_SIGNING_ALLOWED=NO build
 
+      - name: Run CLI version memory guard regression
+        if: steps.guard_release_assets.outputs.skip_all != 'true'
+        run: |
+          set -euo pipefail
+          CLI_BINARY="build/Build/Products/Release/cmux.app/Contents/Resources/bin/cmux"
+          [ -x "$CLI_BINARY" ] || { echo "cmux CLI binary not found at $CLI_BINARY" >&2; exit 1; }
+          CMUX_CLI_BIN="$CLI_BINARY" python3 tests/test_cli_version_memory_guard.py
+
       - name: Inject Sparkle keys into Info.plist
         if: steps.guard_release_assets.outputs.skip_all != 'true'
         run: |