test: add real plugin integration test and --test-real-plugin option

- Add tests/real-plugin.spec.ts for end-to-end plugin testing
- Add --test-real-plugin flag to run-test-frontend.sh
- Test verifies: server registration, API key generation, heartbeat,
  data persistence, invalid key rejection, key revocation

run-test-frontend.sh

@@ -1,15 +1,16 @@
 #!/bin/bash
 # Run frontend test with optional port exposure
-# Usage: ./run-test-frontend.sh [--expose-port {on|off}]
-# Default: off
-# 
-# --expose-port on:  Keep services running after test (manual cleanup required)
-# --expose-port off: Auto cleanup after test (default)
+# Usage: ./run-test-frontend.sh [--expose-port {on|off}] [--test-real-plugin]
+# Default: 
+#   --expose-port off: Auto cleanup after test
+#   --test-real-plugin: Run only real-plugin.spec.ts (requires vps.t1 plugin)
 
 set -e
 
 EXPOSE_PORT="off"
+TEST_REAL_PLUGIN="off"
 COMPOSE_FILE="docker-compose-frontend.yml"
+TEST_PATTERN=""
 
 # Load environment variables from .env.TEST if exists
 if [ -f ".env.TEST" ]; then
@@ -30,9 +31,13 @@ while [[ $# -gt 0 ]]; do
             EXPOSE_PORT="${1#*=}"
             shift
             ;;
+        --test-real-plugin)
+            TEST_REAL_PLUGIN="on"
+            shift
+            ;;
         *)
             echo "Unknown option: $1"
-            echo "Usage: $0 [--expose-port {on|off}]"
+            echo "Usage: $0 [--expose-port {on|off}] [--test-real-plugin]"
             exit 1
             ;;
     esac
@@ -44,6 +49,14 @@ if [[ "$EXPOSE_PORT" != "on" && "$EXPOSE_PORT" != "off" ]]; then
     exit 1
 fi
 
+# Set test pattern for real plugin test
+if [[ "$TEST_REAL_PLUGIN" == "on" ]]; then
+    TEST_PATTERN="real-plugin.spec.ts"
+    echo "🔌 Real Plugin Test Mode: ON"
+    echo "   Will run: tests/real-plugin.spec.ts"
+    echo "   Requires vps.t1 to have OpenClaw plugin installed"
+fi
+
 # Select compose file based on expose-port
 if [[ "$EXPOSE_PORT" == "on" ]]; then
     COMPOSE_FILE="docker-compose-frontend-expose.yml"
@@ -114,7 +127,13 @@ echo "✅ Services ready!"
 
 # Run test
 echo "🧪 Running test..."
+if [[ -n "$TEST_PATTERN" ]]; then
+    # Run specific test for real plugin
+    docker compose -f "$COMPOSE_FILE" run --rm -e WORKERS=1 test npx playwright test tests/real-plugin.spec.ts --reporter=list
+else
+    # Run all tests
     docker compose -f "$COMPOSE_FILE" run --rm -e WORKERS=1 test
+fi
 TEST_EXIT_CODE=$?
 
 # Cleanup decision based on expose-port