Release v1.3.6

• Added
  • Site settings split by domain, with an idempotent startup migration.
  • Versioned schema migrations: run automatically, or manually from the admin panel with a visible history.
  • Manual mode: an upgrade page serves every other request until the migrations are done, then the site recovers on its own.
  • "Migrate Database" admin page.
  • Configurable log level; log files rotate by size and live on the host.
  • Timestamps for banner changes and failed sign-ins.
  • Refuse to start when the code is older than the database, with an opt-out switch.
  • Admin Guide in both languages and an upgrading chapter.
• Fixed
  • Database backups work with non-root accounts.
  • Password reset links no longer carry the password hash.
  • The site enters maintenance mode when a schema migration fails.
  • Database errors roll back the session before fallback.
  • MySQL passwords are URL-encoded in the connection URI.
  • Article deletion no longer reports failure after commit.
  • Admin article and draft lists are paginated.
  • Concurrent first visits to admin settings pages no longer collide.
  • Very large page numbers no longer cause a server error.
  • Admin error messages no longer expose raw exception text.
  • Article and settings forms report validation errors.
  • Orphan-image lookup matches keywords literally.
  • Table-of-contents anchors skip unpaired heading tags.
  • Language switching uses a POST request.
  • Failed comments and replies roll back and report the failure.
  • GIF animations keep frame count, per-frame duration and loop count.
• Improved
  • Dead code removed.
  • Standardized comment wording.