Error handlers had a separate Jinja2Templates instance without the _
global function, causing UndefinedError when rendering base.html
(which now calls {{ _(key, current_locale) }}).
- Register _() from translator module as Jinja2 global on error_handlers templates
- Add current_locale to get_template_context() from request.state.locale
- Add nl2br Jinja2 filter to convert newlines to <br> tags
- Fix TemplateResponse argument order (request first) in error handlers
- Fix type annotations for mypy
- All 97 tests passing
- Add custom error pages (404, 403, 500) with user-friendly messages
- Add flash message system with signed cookies for security
- Add toast notifications with auto-dismiss and manual close
- Add comprehensive SEO meta tags (description, keywords, OG, Twitter)
- Add canonical URLs for SEO
- Update routes to use slug-based URLs (/posts/{slug} instead of /posts/{id})
- Add Open Graph and Twitter Card meta tags for social sharing
- Add favicon SVG
- Update all templates with proper meta tags and URLs
- Add error handlers registration in main.py
- Add flash middleware for request handling
- Install itsdangerous dependency
