Do not auto-run AI generated queries in the Assistant

By default, the AI Assistant should not automatically run the queries it generates!

I was just now trying to debug an SQL statement, which turned out to have the wrong format for a UUID. After the Assistant explained this, it proceeded to generate a SELECT id FROM table_name_here statement, on a table with tens of thousands of records.

It then automatically ran that query, which caused the UI to become unresponsive. After force-quitting my browser, I opened the SQL Editor again. The Assistant reappeared with my previous prompt and proceeded to auto-run it again.

I had to wait several minutes for the query to finish. I attempted to clear the chat, but that was also unresponsive until the query finished . When I was finally able to click it, that also caused the UI to become unresponsive for a few minutes.

If I had been given the option to run or ignore the query, I would have ignored it.