Replace all 3 ImageFormat::WebP encode sites with JpegEncoder q=80.
Update fast-path to detect JPEG SOI instead of RIFF/WEBP magic.
Change file extension .webp -> .jpg, Content-Type headers, and
browser toBlob. Remove unused ImageFormat import and stale comments.
The webp feature stays for DECODING uploaded WebP images.
- JWT secret auto-generates and persists to <STORAGE_PATH>/.jwt_secret
- Remove setup token: first admin setup is open until system initialized
- Fix schema.sql: move CREATE EXTENSION pg_trgm/ltree to top
- Update login UI and auth.js to remove setup token fields
Since the blob storage migration (3c7c16f), thumbnail generation failed
with "No such file or directory" because the handler constructed logical
file paths that don't exist on disk. Resolve the actual blob path via
get_blob_hash() + dedup_service.blob_path() in both upload and get
thumbnail handlers. Add regression tests.