Build the market argument from buyer signals, not TAM calculators

Builds a complete investor pitch deck slide by slide, grounding every market claim in verified buyer demand data, real project budgets, and purchasing signals rather than top-down market size estimates. Produces full slide content with narrative, evidence, and structure for each section: problem, market size, buyer profile, solution, business model, and go-to-market. Built for pre-seed and seed-stage SaaS founders who need a pitch deck that holds up to investor scrutiny with bottom-up market evidence rather than analyst TAM figures.