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historical/traceability records, superseded but not deleted.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/15.md

@@ -0,0 +1,19 @@
+---
+id: 15
+title: 15 Potential Clients Management
+status: Ready for Dev
+date: 2026-09-27
+---
+
+## Description
+
+Adds an admin-only lead-tracking system for prospects (individual/company/agency) who don't yet have accounts: a new standalone `PotentialClient` model/table, a filterable list view by client type, and full CRUD, following existing admin interface patterns.
+
+## Acceptance Criteria
+
+- [ ] All stories completed with acceptance criteria met
+- [ ] Tests cover CRUD operations and filtering
+- [ ] Admin can manage potential clients through new interface
+- [ ] No regression in existing features
+- [ ] Bilingual support (Arabic/English) for all UI elements
+- [ ] Admin navigation updated with new menu item