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historical/traceability records, superseded but not deleted.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/5-3.md

@@ -0,0 +1,26 @@
+---
+id: 5-3
+title: 5-3 Post Deletion
+status: QA Review
+date: 2026-09-27
+parent: 5
+---
+
+## Description
+
+As an admin, I want to permanently delete posts, So that I can remove outdated or incorrect content from the website. Context: Integrates with: posts table; Technology: Livewire Volt; Follows pattern: Permanent delete pattern. Add delete button to the post edit form (from Story 5.1) when editing an existing post:. Full implementation history: docs/stories/story-5.3-post-deletion.md
+
+## Acceptance Criteria
+
+- [ ] Delete button on post list (primary location)
+- [ ] Delete button on post edit page (secondary location)
+- [ ] Confirmation modal dialog before deletion
+- [ ] Permanent deletion (no soft delete per PRD)
+- [ ] Success message after deletion
+- [ ] Redirect to post list after deletion from edit page
+- [ ] Admin-only access (middleware protection)
+- [ ] Audit log entry preserved
+- [ ] Old values stored in log
+- [ ] Clear warning in confirmation
+- [ ] Bilingual messages
+- [ ] Tests for deletion