v2.0.0 - Tag Editing & Online Tagging

• Notice
  • This is a major upgrade. A one-time database migration runs on first
    startup; back up your config directory before upgrading.
  • Editing tags writes to your comic files; the comics directory must be
    mounted writable with write permission for tag editing to work.
• Breaking Changes
  • Admin settings (SMTP, rate limits, browser page size, cover upload size)
    moved from codex.toml into the Admin UI and are now editable without a
    restart. Existing values are imported automatically on upgrade; those
    codex.toml sections are deprecated.
  • Custom covers are now managed in the web UI. Legacy filesystem covers
    (in-library .codex-cover.* files and the covers-only library) migrate
    automatically on first startup.
  • The browser and reader page URLs changed; bookmarks to specific pages may
    need re-navigating from the home screen. OPDS apps reconnect on their own.
  • The HTTP API moved from /api/v3/ to /api/v4/.
• Fixes
  • OPDS 1.2, 2.0, and OpenSearch feeds are now spec-compliant.
  • Folder covers respect favorites.
  • Critical ratings normalized to a consistent 0–5 scale.
  • The age-rating "As Tagged" panel hides when it has no entries.
  • Hovering a comic's tag icon no longer re-runs the on-demand tag importer
    forever on comics with few or no embedded tags.
  • Browser refreshes more often when comics change. container restarts.
• Features
  • Edit the tags on one or many comics directly in the browser — credits,
    story arcs, identifiers, and more — written back to your comic files.
  • Online tagging: look up and apply metadata from online sources, with
    interactive match prompts, rate-limit display, and per-source credentials
    in the new Admin Tagging tab. Or tag a single comic directly by a known
    Metron or Comic Vine issue id or URL, skipping the search.
  • Upload, replace, and remove custom covers for any group from the web UI,
    plus a Custom Covers admin tab.
  • Back up and restore all user data — accounts, bookmarks, favorites,
    settings, libraries — via a user_data.sqlite sidecar, the Admin Restore
    tab, or codex restore_user_data. Snapshotted nightly.
  • Optional self-service password reset, and email verification for new
    sign-ups (both require SMTP).
  • New user Profile dialog for self-service username, email, and API token
    (moved here from the sidebar).
  • Database and user-data backups are now compressed, dated, and auto-pruned.
  • Redesigned admin panel has moves settings under relevant tabs.
• Performance
  • Library imports are faster: forced re-imports run over 20x faster, fresh
    imports almost 4x, and polls that find nothing changed are now nearly
    instant — no more rewriting every comic, regenerating every cover, and
    refreshing every browser on a no-op poll.
  • Browsing large libraries is faster: table, search, and sorted folder views
    that could take minutes now load in about a second, metadata works on
    collections of any size, and browsing stays responsive during imports.