fix: handle SIGINT/SIGTERM for graceful shutdown in Docker (#74)

Author: rsbh

packages/chronicle/src/cli/commands/dev.ts

@@ -28,4 +28,16 @@ export const devCommand = new Command('dev')
 
     await server.listen();
     server.printUrls();
+
+    let shuttingDown = false;
+    const shutdown = async () => {
+      if (shuttingDown) return;
+      shuttingDown = true;
+      try {
+        await server.close();
+      } catch { /* ignore close errors */ }
+      process.exit(0);
+    };
+    process.once('SIGINT', shutdown);
+    process.once('SIGTERM', shutdown);
   });

packages/chronicle/src/cli/commands/start.ts

@@ -26,4 +26,16 @@ export const startCommand = new Command('start')
     });
 
     server.printUrls();
+
+    let shuttingDown = false;
+    const shutdown = async () => {
+      if (shuttingDown) return;
+      shuttingDown = true;
+      try {
+        await server.close();
+      } catch { /* ignore close errors */ }
+      process.exit(0);
+    };
+    process.once('SIGINT', shutdown);
+    process.once('SIGTERM', shutdown);
   });