Error: 500 Internal Server Error on MediaWiki import
Root cause: MEDIAWIKI_API_URL not configured in container
Fix:
- Added MEDIAWIKI_API_URL: https://karatetrainer.net/api.php
- Added MEDIAWIKI_USER, MEDIAWIKI_PASSWORD (optional, uses .env)
- Added category name overrides (4 categories)
Public wiki access (read-only) does not require authentication.
User/password only needed for write operations.
Note: .env file created locally but not committed (in .gitignore)
Users should copy .env.example and set their credentials if needed.
