update docs for completed social links editor

- Mark tasks 1-9 and 15-16 as done in editor-reorganisation plan
- Update plan status from Planned to In Progress
- Add implementation notes documenting social links architecture
- Update test count to 1800+ in PROGRESS.md

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

PROGRESS.md

@@ -30,7 +30,7 @@ Tier 1 MVP complete. Tier 2 production readiness complete (except Litestream and
 - Fully Tailwind-free CSS (12 KB gzipped shop+theme, 95 KB gzipped admin total)
 - CI pipeline (compile warnings, format, credo, dialyzer, tests)
 - Deployed on Fly.io with observability (LiveDashboard, ErrorTracker, structured logging)
-- 1759+ tests passing, 99-100 PageSpeed mobile
+- 1800+ tests passing, 99-100 PageSpeed mobile
 
 ## Next up
 
@@ -157,13 +157,15 @@ Restructure the 3-tab editor panel for better discoverability. Replace Settings
 |---|------|-----|--------|
 | 1-4 | Data model + Site tab skeleton | 3h | done |
 | 5-7 | Announcement bar (editable text, link, styles) | 1.5h | done |
-| 8-9 | Social links editor | 2h | done |
+| 8-9 | Social links editor (CRUD, reorder, platform detection, URL normalization) | 2h | done |
 | 10-14 | Header & footer navigation editors | 3h | planned |
 | 15-16 | Footer content (about, copyright, newsletter toggle) | 1.25h | done |
 | 17-18 | Move branding from Theme to Site | 1.5h | planned |
 | 19-20 | Merge page settings into Page tab, remove Settings tab | 1h | planned |
 | 21-22 | Polish and testing | 2h | planned |
 
+Social links now support 40+ platforms (grouped by category), auto-detect platform from pasted URLs (including deep links like `tg://` and `spotify:`), normalize bare domains to https://, preserve custom protocols, and filter empty URLs from shop display.
+
 ### Unified editor session ([plan](docs/plans/unified-editor-session.md)) — Complete
 
 Unified "optimistic preview with explicit save" across all editor tabs. Changes show immediately but only persist on Save. Free tab switching without warnings. Navigation blocking with Save/Discard/Cancel modal.
@@ -250,7 +252,7 @@ All plans in [docs/plans/](docs/plans/). Completed plans are kept as architectur
 | [profit-aware-pricing.md](docs/plans/profit-aware-pricing.md) | Planned |
 | [security-hardening.md](docs/plans/security-hardening.md) | Planned |
 | [draft-publish-workflow.md](docs/plans/draft-publish-workflow.md) | Planned |
-| [editor-reorganisation.md](docs/plans/editor-reorganisation.md) | Planned |
+| [editor-reorganisation.md](docs/plans/editor-reorganisation.md) | In Progress |
 | [seo-enhancements.md](docs/plans/seo-enhancements.md) | Planned |
 | [competitive-gap-analysis.md](docs/plans/competitive-gap-analysis.md) | Reference |
 | [competitive-gaps.md](docs/plans/competitive-gaps.md) | Planned |