wongyiekheng 21e16d9872 Fix search: Enter advances to next match, invalidate on new content
- Pressing Enter in find bar now advances to next match instead of
  re-running search when needle is unchanged
- Invalidate search cache when new log lines flush or log is cleared
- Extract _invalidate_search() helper for consistent state reset

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-31 10:00:06 +08:00
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2026-03-29 13:01:12 +08:00
2026-03-29 16:49:10 +07:00