Knowledge, Video, Icon, and Account Fixes
Site update logs are no longer pinned and the Knowledge window keeps only Close; uploaded Bilibili covers are restored, thumbnail circles removed, Quick Transfer and five games receive distinct icons, and account login, registration, and signed-in states are corrected.
# Knowledge, Video, Icon, and Account Fixes
This release resolves visible daily-use issues across Knowledge, Videos, Resources, Games, and the account entry.
## Knowledge
- Every existing site update is unpinned. Future admin creates and edits in `site-updates` are also forced to remain unpinned, while the public list defensively ignores stale pinned values from cached data.
- The Knowledge titlebar removes minimize and maximize/restore controls and keeps only the working Close action.
## Video and icons
- The public video API now accepts the 960×540 maximum generated by the admin upload flow while retaining the 320 KB byte limit, so manually uploaded Bilibili covers render again.
- The blue circular overlay has been removed from video-card thumbnails.
- Quick Transfer and all five games now use distinct generated transparent icons instead of shared generic art or code-drawn geometry.
## Account interface
- Login shows email and one password field; confirmation appears only during registration.
- After sign-in, the complete login/registration form is hidden and only the signed-in success state and Log out action remain.
