Refine modal actions and hide query variants

TODO.md

@@ -255,6 +255,22 @@
   - backend debug broadcasts
 
 ## Recent Change Log
+- Date: `2026-03-16`
+- What changed:
+  - Hid the expanded query-variant chip list from the search UI while leaving backend/debug query visibility intact.
+  - Reworked the result modal action panel so its primary CTA now follows source capability: `Direct Download` for Google Video and `Open Source` for Envato/Artgrid.
+  - Added a secondary action button area plus internal scrolling for long Source Summary text so long descriptions no longer push action buttons off-screen.
+  - Switched Google Video modal rendering from iframe-style embed-first behavior to a webpage-like preview panel, while keeping Artgrid/Envato on the existing media-mode path.
+  - Bumped the frontend asset version again to force browsers onto the updated modal behavior.
+- Why it changed:
+  - The remaining user issues were now primarily UX/layout issues: too little visible result choice, hidden buttons under long summaries, query-variant clutter, and modal actions that did not match what each source can actually do.
+- How it was verified:
+  - `go test ./...`
+  - `bash scripts/selftest.sh`
+- What is still risky or incomplete:
+  - Live browser validation is still needed to confirm the widened search pool feels better in real queries and that the new Google Video panel feels sufficiently “webpage-like” in practice.
+  - `node` is still unavailable in this environment, so no frontend static syntax/build step was added here.
+
 - Date: `2026-03-16`
 - What changed:
   - Expanded search breadth moderately by increasing base query count, collector query budgets, per-source caps, enrichment scope, and final visible result target while keeping Gemini review cap at `16`.