Add languages and entity_translations tables to database schema
Implement localized queries and translation management in backend
Integrate frontend i18n and add translation UI components
Add `has_item_drop` flag to skills and `pokemon_skill_item_drops` table
Enable configuring item drops for specific pokemon skills in editor
Show skill item drops on pokemon and item detail pages
Drop subcategory column from database schema and update constraints
Remove subcategory handling from backend queries and API endpoints
Clean up frontend components and admin views to reflect the change
Move entity creation and editing from AdminView to separate pages.
Simplify AdminView to focus on system configuration and record deletion.
Add action buttons to list/detail views and protect routes via meta tags.
