feat: design system overhaul — sidebar, AI chats, settings, brainstorm, color cleanup

- Sidebar: dynamic brand-accent colors, brainstorm section restyled
- AI chat general: popup panel with expand/collapse, hides when contextual AI open
- AI chat contextual: tabs reordered (Actions first), X close button, height fix
- Settings: all tabs restyled, 6 new color presets (sage, terracotta, iron, etc.)
- Global color cleanup: emerald/orange hardcoded → brand-accent dynamic
- Brainstorm page: orange → brand-accent throughout
- PageEntry animation component added to key pages
- Floating AI button: bg-brand-accent instead of hardcoded black
- i18n: all 15 locales updated with new AI/billing keys
- Billing: freemium quota tracking, BYOK, stripe subscription scaffolding
- Admin: integrated into new design
- AGENTS.md + CLAUDE.md project rules added

.agent/skills/wds-6-asset-generation/workflow-content.md

@@ -0,0 +1,49 @@
+---
+name: content-creation
+description: Strategic text content generation using the 5-model framework
+---
+
+# Content Creation
+
+**Goal:** Generate strategically grounded text content using the Five-Model Framework.
+
+---
+
+## INITIALIZATION
+
+### Design Log
+Read `{output_folder}/_progress/00-design-log.md`. Check Current and Backlog for context.
+
+
+## The Five-Model Framework
+
+1. **Content Purpose** — The job to do
+2. **Trigger Map** — Strategic foundation
+3. **Customer Awareness Cycle** — Content strategy
+4. **Action Mapping** — Content filter
+5. **Badass Users** — Tone & frame
+6. **Golden Circle** — Structural order (WHY > HOW > WHAT)
+
+---
+
+## Steps
+
+Execute steps in `./steps-c/`:
+
+| Step | File | Purpose |
+|------|------|---------|
+| 00 | step-00-define-purpose.md | Define content purpose |
+| 01 | step-01-load-trigger-map-context.md | Load Trigger Map context |
+| 02 | step-02-awareness-strategy.md | Awareness strategy |
+| 03 | step-03-action-filter.md | Action mapping filter |
+| 04 | step-04-empowerment-frame.md | Empowerment framing |
+| 05 | step-05-structural-order.md | Golden Circle structure |
+| 06 | step-06-generate-content.md | Generate content |
+
+---
+
+## AFTER COMPLETION
+
+1. Update design log
+2. Suggest next action
+3. Return to activity menu