fd4cd2ac9c
Per Codex's polish note: flagging a source now opens a small inline popover for the optional reason (consistent with the calm admin UI) instead of a native prompt(). Clearing a flag stays immediate. Backdrop/Escape/Cancel close it; Enter confirms. Optimistic with revert-on-failure, like the other actions. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>