Click the table name will get error and fail to open the detail page

It is easy to reproduce by clicking different tables in `OnlineTables.vue` for multiple times.

Here is the backend error message.

```
E1102 15:39:44.960912 79732736 sql_cluster_router.cc:2198] table with name user in db SYSTEM_FEATURE_PLATFORM does not exist
```

The issue occurs in OnlineTables.vue when clicking table names, causing a backend error about a missing table. Start by examining the frontend click handler in OnlineTables.vue and trace the API call to the backend. Check the backend SQL cluster router logs (sql_cluster_router.cc) to understand the table lookup logic. Verify the database SYSTEM_FEATURE_PLATFORM and table 'user' existence or routing logic.

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