Motivation

• Introduce a production-feasible plan to convert daily care rhythms into baby-friendly audio (sleep music, white/pink/brown noise) with safety and UX constraints.
• Prioritize controllability, safety (volume/duration constraints), and personalization over raw open-ended music generation.
• Recommend an engineering path that balances weekly stability with daily adjustments to avoid overfitting to noisy single-day data.

Description

• Add a new documentation file BabyBuddy/今日节奏生成宝宝音乐白噪音落地方案.md that defines goals, safety constraints, signal-to-music mapping, and a layered generation architecture (Rule layer, Pattern Planner, Sound Engine, Personalization).
• Specify the four input features (节律稳定度, 日夜相位, 负荷指数, and 年龄层参数) and propose a weekly+daily weighting strategy with example parameters like w_week = 0.7 and w_day = 0.3.
• Provide an MVP roadmap (Phase 1–3), evaluation metrics (product, audio quality, and safety indicators), and concrete engineering recommendations including local mixing on iOS and server-driven structure/parameters.
• Document risks and mitigations, QC suggestions (LUFS/peak/frequency checks), template fallback strategies, and references to pediatric and WHO guidance.

Testing

• This change only adds documentation and contains no code modifications, so no unit tests were required.
• Documentation was validated with basic docs checks and linting; CI documentation checks passed without errors.

Codex Task