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-4-ux-design/data/scenario-init/03-entry-point.md

@@ -0,0 +1,67 @@
+# Question 2: Where Does the User First Encounter This?
+
+**Identify the natural starting point for your scenario**
+
+---
+
+## The Question
+
+```
+Agent: "Where does your primary target group first come into
+        contact with this solution?"
+```
+
+---
+
+## Why This Matters
+
+The entry point determines:
+
+- Where the scenario starts
+- What mental state they're in
+- What context you're designing for
+
+**Common entry points:**
+
+- Google search
+- ChatGPT recommendation
+- App store browsing
+- Friend recommendation
+- Social media ad
+- Direct URL (returning user)
+
+---
+
+## Example: Dog Week
+
+```
+Designer: "Google search - they're frustrated with family conflict
+           over dog care."
+```
+
+**Why this matters:**
+
+- They're actively searching (high intent)
+- They're frustrated (emotional state)
+- They need immediate clarity (landing page critical)
+
+---
+
+## What Agent Captures
+
+```
+ENTRY POINT: Google search
+CONTEXT: Actively searching for solution
+INTENT: High (frustrated, need help now)
+IMPLICATION: Landing page must address frustration immediately
+```
+
+---
+
+## Next Question
+
+[What's their mental state at this moment?](03-mental-state.md)
+
+---
+
+[← Back to Guide](00-SCENARIO-INIT-GUIDE.md)