Dashboard: Top Issues Table widget created with no columns

[sentry-junior]

Summary

When the dashboard skill creates a "Top Issues" Table widget, the resulting widget renders in the Sentry UI with Columns: None, making it effectively empty and unusable. The widget payload does not include the required column definitions, so the table has no data to display.

Reproduction

1. Use the sentry-cli dashboard skill to generate a dashboard including a "Top Issues" table widget.
2. Open the created dashboard in the Sentry UI.
3. Observe the widget shows Columns: None and displays no data.

Expected behavior

The table widget payload for an Issues dataset query should include explicit column definitions. For a "Top Issues" use case, the expected columns are issue and events, with sort set to Events descending (high to low).

Example widget query shape:

{
  "fields": ["issue", "count()"],
  "columns": ["issue"],
  "aggregates": ["count()"],
  "orderby": "-count()"
}

Versions affected

Observed via getsentry/cli dashboard skill; affects any dashboard creation path that generates Issues-dataset table widgets without explicit column definitions.

Action taken on behalf of Burak Yigit Kaya.