Product Requirements Document (Pragmatic Framework: Planning)

A PRD here is a market requirements document — it specifies the WHAT (the market problems, personas, and prioritized requirements). The HOW (design, flows, UI, prototypes, error conditions) belongs to the team. Lead with the problem, cite evidence, and write problems in the persona's first-person voice. See ../pm-copilot/references/framework.md for the primitives used below.

Requirement form: [persona] has [problem, described in a use scenario] with [frequency]. Priority = Market Evidence × Impact (advanced: × (B + U + C + V) — Buying, Using, Vision, Competitive).