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historical/traceability records, superseded but not deleted.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/13.md

@@ -0,0 +1,22 @@
+---
+id: 13
+title: 13 Authentication Pages Design Enhancement
+status: Ready for Dev
+date: 2026-09-27
+---
+
+## Description
+
+Redesigns the auth pages (login, forgot/reset password, etc.) from plain layouts into a branded split-screen experience — dark panel with the LIBRA logo on one side, a warm-cream form panel with a subtle background pattern on the other — plus a language-toggle visibility fix, migration of all auth pages to the new layout, and a final cross-browser/viewport visual QA pass.
+
+## Acceptance Criteria
+
+- [ ] All stories completed with acceptance criteria met
+- [ ] Language toggle visible and accessible on auth pages
+- [ ] Split layout displays correctly on desktop and tablet
+- [ ] Mobile layout is functional and attractive
+- [ ] RTL (Arabic) layout mirrors correctly
+- [ ] Pattern is subtle and professional
+- [ ] No regression in auth functionality
+- [ ] Visual QA completed on major browsers (Chrome, Firefox, Safari)
+- [ ] Accessibility audit passed (contrast ratios, focus states)