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historical/traceability records, superseded but not deleted.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/8-5.md

@@ -0,0 +1,23 @@
+---
+id: 8-5
+title: 8-5 Booking Rejected Email
+status: QA Review
+date: 2026-09-27
+parent: 8
+---
+
+## Description
+
+As a client, I want to be notified when my booking is rejected, So that I can understand why and request a new consultation if needed. Full implementation history: docs/stories/story-8.5-booking-rejected-email.md
+
+## Acceptance Criteria
+
+- [ ] Sent when consultation status changes to `'rejected'`
+- [ ] "Your consultation request could not be approved"
+- [ ] Original requested date and time
+- [ ] Rejection reason (conditionally shown if provided by admin)
+- [ ] Invitation to request new consultation
+- [ ] Contact info for questions
+- [ ] Empathetic, professional
+- [ ] Email in client's preferred language (Arabic or English)
+- [ ] Default to Arabic if no preference set