Batch settings storage writes, tier plugin startup, lazy-load heavy UI
chunks, and optimize global search indexing. Stop tweening bar height in
grade analytics to prevent invalid negative SVG rect values.
Co-authored-by: Cursor <cursoragent@cursor.com>
Harden theme list fetching with normalized API responses, timeouts, retries,
and a visible error state so the store no longer stays blank when messaging
or payloads fail (common after extension updates without a SEQTA tab reload).