Adds the Phase 4 requirement docs that align the customer app with the new
HaloBestie Figma design dump.
- requirement/flow_customer.md: source-of-truth numbered flow (input)
- requirement/flow_customer.mermaid.md: 6 mermaid diagrams + Figma cross-ref
- requirement/phase4-customer-flow.md: PRD (15 functional sections)
- requirement/phase4-customer-flow-plan.md: 10-stage implementation plan
- .gitignore: exclude requirement/Figma.zip + extracted Figma/ folder
Resolved product decisions: no free trial (replaced by configurable
first-session discount), pricing has independent chat/call groups,
voice-call mode is chat-with-badge (mitra shares Meet link manually),
social login is server-driven via /api/shared/auth-providers, ESP tags
are info-only (not used for matching).
No code changes; implementation starts at plan stage 0 (design system).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>