fix: restore missing closing brace in DynamicMcpController

dap-gateway/src/main/java/io/shinhanlife/dap/dapms/sync/DynamicMcpController.java

@@ -83,6 +83,8 @@ public class DynamicMcpController {
         return ResponseEntity.ok()
                 .header("Mcp-Session-Id", activeSessionId)
                 .body(emitter);
+    }
+
     @org.springframework.web.bind.annotation.DeleteMapping("/mcp/sse/{category}")
     public ResponseEntity<Void> handleDeleteSse(@PathVariable("category") String category) {
         return ResponseEntity.ok().build();