refactor: improve date formatting for version release info in footer

src/backend/index.ts

@@ -122,33 +122,57 @@ const server = app.listen(config.port, () => {
 });
 
 // Graceful shutdown
+let isShuttingDown = false;
+
 const gracefulShutdown = async (signal: string): Promise<void> => {
+  // Prevent multiple shutdown calls
+  if (isShuttingDown) {
+    logger.warn(`Shutdown already in progress, ignoring ${signal}`);
+    return;
+  }
+  isShuttingDown = true;
+
   logger.info(`Received ${signal}, shutting down gracefully`);
 
-  server.close(async err => {
+  // Set a hard timeout for Docker (Docker default stop timeout is 10s)
-    if (err) {
+  const forceExitTimeout = setTimeout(() => {
-      logger.error('Error closing server', err);
-      process.exit(1);
-    }
-
-    try {
-      await logger.flush();
-      process.exit(0);
-    } catch (error) {
-      logger.error('Error during graceful shutdown', error as Error);
-      process.exit(1);
-    }
-  });
-
-  // Force close after 5 seconds
-  setTimeout(() => {
     logger.error('Forced shutdown after timeout');
     process.exit(1);
-  }, 3000);
+  }, 8000);
+
+  try {
+    // Stop accepting new connections
+    await new Promise<void>((resolve, reject) => {
+      server.close(err => {
+        if (err) {
+          logger.error('Error closing server', err);
+          reject(err);
+        } else {
+          logger.info('Server closed successfully');
+          resolve();
+        }
+      });
+    });
+
+    // Flush logs
+    await logger.flush();
+    logger.info('Logs flushed successfully');
+
+    // Clean exit
+    clearTimeout(forceExitTimeout);
+    process.exit(0);
+  } catch (error) {
+    logger.error('Error during graceful shutdown', error as Error);
+    clearTimeout(forceExitTimeout);
+    process.exit(1);
+  }
 };
 
+// Docker sends SIGTERM for graceful shutdown
 process.on('SIGTERM', () => gracefulShutdown('SIGTERM'));
+// Ctrl+C in development
 process.on('SIGINT', () => gracefulShutdown('SIGINT'));
+// Nodemon uses SIGUSR2 for restart
 process.on('SIGUSR2', () => gracefulShutdown('SIGUSR2')); // nodemon uses SIGUSR2
 
 // Handle server errors

src/frontend/src/App.tsx

@@ -78,7 +78,7 @@ const App: React.FC = () => {
           <p className="version-info">
             Version {versionInfo.version}
             {versionInfo.createdAt !== 'unknown' &&
-              ` | Released ${new Date(versionInfo.createdAt).toLocaleDateString()}`}
+              ` | Released ${new Date(versionInfo.createdAt).toLocaleString()}`}
           </p>
         )}
       </footer>