docs: complete project research (ecosystem analysis)

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Research files synthesized:
- STACK.md: Flutter + Supabase + Riverpod recommended stack
- FEATURES.md: 7 table stakes, 6 differentiators, 7 anti-features identified
- ARCHITECTURE.md: Offline-first sync with optimistic locking, RLS multi-tenancy
- PITFALLS.md: 5 critical pitfalls (v1), 8 moderate (v1.5), 3 minor (v2+)
- SUMMARY.md: Executive synthesis with 3-phase roadmap implications

Key findings:
- Stack: Flutter + Supabase free tier + mobile_scanner + Open Food Facts
- Critical pitfalls: Barcode mismatches, timezone bugs, sync conflicts, setup complexity, notification fatigue
- Phase structure: MVP (core) → expansion (usage tracking) → differentiation (prediction + sales)
- All research grounded in ecosystem analysis (12+ competitors), official documentation, and production incidents

Confidence: HIGH
Ready for roadmap creation: YES

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

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2026-01-27 23:42:37 -05:00

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