All three API calls (/api/gallery/scroll, /api/gallery/timeline,
/api/gallery/jump) were still sending the legacy ?tag=<name> param.
Task 10's backend switch silently ignored it, so subsequent scroll
loads and timeline navigation fetched unfiltered content on a
tag-filtered gallery page.
Read tag_id from window.location.search at init and cache it in
state.activeTagId. Use it as ?tag_id=<int> on every subsequent
fetch. state.activeTag (the display string) stays for human-facing
uses elsewhere.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
bvandeusen
3b472cf519