Prepare project for pipeline takeover: task tracker, UX doc, CLAUDE.md pointers

Adds docs/tasks/ (16 epics + 102 stories converted to task/subtask files with
statuses.md as the new status source of truth) and docs/ux-design.md
(retrospective design-system reference), and points CLAUDE.md at them.
docs/prd.md and docs/architecture.md are kept as BMAD wrote them; the legacy
docs/stories/, docs/epics/, docs/qa/gates/ and .bmad-core/ stay in place as
historical/traceability records, superseded but not deleted.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

docs/tasks/5.md

@@ -0,0 +1,21 @@
+---
+id: 5
+title: 5 Posts/Blog System
+status: Ready for Dev
+date: 2026-09-27
+---
+
+## Description
+
+An admin-only publishing system for legal articles/news: rich-text creation and editing, draft saving, deletion, public bilingual display in reverse-chronological order, and simple title/body search — all without login or comments.
+
+## Acceptance Criteria
+
+- [ ] Admin can create, edit, delete posts
+- [ ] Rich text editor for formatting
+- [ ] Draft saving capability
+- [ ] Posts publicly visible
+- [ ] Search functionality
+- [ ] Reverse chronological display
+- [ ] Bilingual content support
+- [ ] Responsive design