Five fixes bundled into one release:
- preserve user-attached tags across crawler upserts
(repo::crawler::sync_tags now scopes to added_by IS NULL; orphaned
attachments from deleted users are reaped as crawler-owned)
- gate manga PATCH and cover endpoints on uploaded_by (require_can_edit
in api::mangas; non-NULL uploaded_by must match the caller)
- equalise login response time across user-existence branches
(run argon2 against a OnceLock-cached dummy hash on the no-user
branch so timing doesn't leak username existence)
- crawler download defences (SSRF allowlist of host literals
including IPv4-mapped IPv6 ranges, 32 MiB streamed size cap,
reject non-whitelisted image types, three-way chapter-probe
classifier replaces the binary #avatar_menu check)
- tighten validation and clean up dead unload path
(attach_tag + create_token enforce 64-char caps; LocalStorage
rejects NUL bytes explicitly; reader flushFinalProgress drops
the always-405 sendBeacon path)
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>