Six bilingual patent-workflow checklists (UPC Statement of Claim, Defence,
Confidentiality Application, Representative Registration; BPatG Nullity;
EPO Opposition) with grouped items, rule references, and tips. Index page
lists cards with regime filter and per-checklist progress; detail page
persists check state in localStorage (patholo:checklist:<slug>), shows a
live progress bar, supports reset and print, and submits feedback via
Supabase checklisten_feedback.