Tolerate Gemini image expansion drift

TODO.md

@@ -268,6 +268,20 @@
   - backend debug broadcasts
 
 ## Recent Change Log
+- Date: `2026-03-24`
+- What changed:
+  - Relaxed Gemini image-query expansion parsing so loose plain-text numbered lists can still be accepted when the model prepends explanatory text instead of returning a clean JSON object.
+  - Removed the GIPHY image-mode search meta box from the frontend so the image UI stays visually simpler.
+  - Stopped surfacing the Gemini image-expansion fallback warning directly in the image-search UI when the backend can still continue with usable fallback queries.
+- Why it changed:
+  - Real log review showed Gemini image expansion sometimes returned text like `Here is the JSON requested`, which triggered fallback even though the model output still contained useful query candidates, and the extra meta box was not adding enough value to justify the space it consumed.
+- How it was verified:
+  - log review of `ai-media-hub-2026-03-24T07-25-42-827Z.log`
+  - `node --check frontend/app.js`
+- What is still risky or incomplete:
+  - This improves tolerance for one common Gemini formatting deviation, but fully free-form model output can still fall back if it does not contain recoverable query lines.
+  - Go tests still could not be rerun in this environment because `go` is currently unavailable here.
+
 - Date: `2026-03-24`
 - What changed:
   - Removed the redundant `GIPHY Download Dir` variable field from the Unraid template and kept the dedicated `GIPHY Downloads` path mapping as the single user-facing download-path control.