“Build a proposal creation platform with a drag-and-drop, block-based editor (pricing tables, scope, T&Cs, etc.), autosave, live preview, and reusable content blocks. Add a built-in e-signature flow with signer roles, optional signature placement, and real-time status tracking. Include an analytics dashboard showing who viewed the proposal, when, and for how long. Allow export as PDF or a branded, shareable link.”