Enhance worker management and logging in summary-hook.js and worker-utils.ts

- Refactored logging functionality in summary-hook.js to improve clarity and consistency.
- Added checks in worker-utils.ts to prevent unnecessary restarts of the worker service, ensuring it only starts if not already running.

src/shared/worker-utils.ts

@@ -6,17 +6,36 @@ const FIXED_PORT = parseInt(process.env.CLAUDE_MEM_WORKER_PORT || '37777', 10);
 
 /**
  * Ensure worker service is running
- * Just starts PM2 - no health checks, no retries, no delays
- * PM2 handles the rest (already running = no-op, failures = exit code)
+ * Checks if worker is already running before attempting to start
+ * This prevents unnecessary restarts that could interrupt mid-action processing
  */
 export function ensureWorkerRunning(): void {
   const packageRoot = getPackageRoot();
   const pm2Path = path.join(packageRoot, 'node_modules', '.bin', 'pm2');
   const ecosystemPath = path.join(packageRoot, 'ecosystem.config.cjs');
 
-  spawn(pm2Path, ['start', ecosystemPath], {
+  // Check if worker is already running
+  const checkProcess = spawn(pm2Path, ['list', '--no-color'], {
     cwd: packageRoot,
-    stdio: 'inherit'
+    stdio: ['ignore', 'pipe', 'ignore']
+  });
+
+  let output = '';
+  checkProcess.stdout?.on('data', (data) => {
+    output += data.toString();
+  });
+
+  checkProcess.on('close', (code) => {
+    // Check if 'claude-mem-worker' is in the PM2 list output and is 'online'
+    const isRunning = output.includes('claude-mem-worker') && output.includes('online');
+
+    if (!isRunning) {
+      // Only start if not already running
+      spawn(pm2Path, ['start', ecosystemPath], {
+        cwd: packageRoot,
+        stdio: 'ignore'
+      });
+    }
   });
 }