FlowChain, three-tier donation management app

[ with: Ryuto Kawabata, Yug More ] FlowChain is a three-tier donation management app built for nonprofits and fundraisers. It brings donor data, campaign performance, and approval workflows together in a single system. Core components: - Donor management with recurring gift support - Campaign dashboards for progress and attribution - Approval workflows for grant and sponsorship requests The app is focused on reducing administrative burden while preserving transparency for finance and program teams.