This beta patch improves anime page detection, save/update behavior, and overall extension reliability.

Fixed anime progress updates so saving episode 1 can move existing planned entries to watching when progress is detected.
Improved duplicate handling so existing library entries update progress instead of showing full create-only fields.
Added compact page support status in the popup to show whether the current tab uses a supported site adapter, generic detection, or unsupported mode.
Improved extension architecture to make future website support easier to expand.
Improved AniNeko detection for anime detail and episode pages, including cleaner descriptions and episode metadata.
Improved Animepahe detection for title, total episodes, source URL, cover image, description, and genres.
Improved generic anime detection for additional anime detail and watch page layouts.
Fixed floating quick-save button behavior so chapter and episode updates work more reliably after page detection initializes.
Various stability improvements and bug fixes.