Map {{product_concept}} to SDGs (3,7,9,11,12,13,15). For each feature idea:
- Which SDG target(s) does it serve?
- Expected planetary impact (qual/quant)
- Human health impact (sleep/stress/activity/diet proxies)
- Risks/harms + mitigations
Output a prioritization matrix (impact x effort) and a 90-day plan.
