Fix broken wiki grouping: flatten page filenames, group via _Sidebar.md GitHub wiki's [[Path/Page]] link syntax doesn't resolve subfolder pages (rendered as broken/red links), and the auto-sidebar flattens folder pages to their leaf name anyway, losing the grouping. Revert to flat filenames (ADR-*, Contributing-UI-Guidelines) and add a custom _Sidebar.md, which is GitHub wiki's actual supported mechanism for a grouped nav panel.
Reorganize wiki: group ADRs, split Contributing into General + UI-Guidelines - Move ADR-Hosting-and-Backend.md and ADR-Styling-and-UI-Framework.md into ADR/ - Move Contributing.md to Contributing/General.md - Add Contributing/UI-Guidelines.md (Tailwind + shadcn/ui conventions) - Finalize ADR/Styling-and-UI-Framework.md: target state decided, foundation ticket #117 and compliance ticket #118 filed - Fix stray [[ShareModal]] wiki-links and update cross-references
Mark hosting/backend ADR implemented; document deploy pipeline and Conventional Commit PR titles
ADR #1