feat(g5-g6): age-aware UX + mama affiliate page
G5 — Age-Aware UX:
- useStageCheck hook: maps birth date → BabyStage (newborn/infant/sitter/crawler/toddler/walker)
- Time-of-day fast-log suggestion chip on home page (time × stage matrix)
- Milestones page: 25 WHO/AAP milestones, category filter, progress bar, inline date picker
- Milestones API: GET (merged definitions + achievements), POST (upsert), DELETE (un-mark)
- DB: milestone_achievements table with unique(child_id, milestone_key)
- Milestones 🌟 added to menu
G6 — Mama Affiliate Page:
- member_profiles, recommended_products, product_clicks tables
- /api/profile CRUD (GET/PUT), /api/profile/products (GET/POST/PATCH/DELETE)
- Public routes: /api/profile/[slug] and /api/profile/[slug]/click (IP hashed)
- /settings/profile: slug + bio editor, product list with ↑↓ reorder + click counts
- /m/[slug]: beautiful public page (gradient bg, product grid, Shop → click tracking)
- Settings page link to profile setup
DB migrations: 0014_milestones, 0015_affiliate.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Mannu
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