Remove campaign negative keywords (permanent)

Deletes negative keywords from a campaign so those queries can trigger ads again. This is the only tool in Adako that removes anything, and the removal is permanent: a removed criterion cannot be restored, only re-added as a new one. Use when: the user has confirmed that a specific negative is blocking traffic they want, and you have shown them the exact list by name. Do not use when: the user asked to "turn off", "stop" or "pause" something — that is never a removal. Negatives cannot be paused; if the user is unsure, leave them in place. Requires confirm_delete: true. Ask the user first, in plain words, naming every negative that will be deleted. Ids that are not negatives on this campaign are reported back rather than silently ignored. Removing a negative widens matching immediately, which can increase spend. If you are unsure which account, campaign or period the user means, ask them — do not guess ids or dates.