Eliminate a few database queries on all issue and pull request pages by moving mention autocomplete data to async JSON endpoints fetched on-demand when the user types `@`. See https://github.com/go-gitea/gitea/pull/36739#issuecomment-3963184858 for the full table of affected pages. 🤖 Generated with [Claude Code](https://claude.com/claude-code) --------- Co-authored-by: Claude Opus 4.6 <[email protected]> Co-authored-by: wxiaoguang <[email protected]>