Improve query intent handling and preview playback

TODO.md

@@ -141,6 +141,19 @@
 - Effect:
   - improves Artgrid recall in SearXNG result sets that favor canonical Artlist URLs over Artgrid URLs
 
+## Current Session Update (2026-03-16, Query / Preview Follow-up)
+- Search intent translation was updated to better preserve compound media phrases:
+  - added explicit normalization for terms like `사이버 펑크` -> `cyberpunk`
+  - added a guard that rejects over-compressed translations when the original query contains a richer multi-word intent
+- Artgrid page parsing was tightened:
+  - generic Artgrid homepage / challenge HTML should no longer be mistaken for a real clip page during enrichment
+  - this prevents homepage thumbnails/descriptions from overwriting real search result metadata
+- Hover preview playback was changed to lazy attach on hover:
+  - preview source is now attached on mouseenter
+  - playback waits for media readiness instead of trying to play immediately from the render path
+  - source is detached again on mouseleave
+- Self-test script search step now retries to reduce flaky startup timing failures during local smoke tests
+
 ## Local Self-Test Workflow
 - Primary command:
   - `bash scripts/selftest.sh`