Flutterflow Designer Needed to Debug Backend and Actions

FlutterFlow & Supabase Expert Needed to Fix Database Actions and Complete Dashboard App Description: I am looking for an experienced FlutterFlow and Supabase developer to help finish up a fantasy portfolio/trading tracker application. The App Premise: The app is a fantasy financial dashboard where users can simulate a mock trading portfolio and track their historical total balance over time using a chart. The Problem We Are Facing Right Now: The user interface layout is already designed and built. However, we are running into structural data issues on the onboarding flow. When a new user registers, the app hits a database roadblock (specifically, Supabase Foreign Key Constraints / data type mismatches with numeric fields) when trying to insert initial records into the portfolio_history table. Because this initial data isn't seeding properly, the app freezes on the authentication screen or fails to render the main dashboard components upon navigation due to empty data streams. What is Left to be Done: Debug and fix the signup/login Action Flow in FlutterFlow so it seamlessly creates public user profiles and initializes the required initial rows in Supabase (portfolio and portfolio_history) without data-type conflicts. Ensure the dashboard queries handle "empty states" or default values gracefully so the UI components (like the chart) render perfectly upon first login. Help map out the remaining backend actions for simulating mock trades (updating balances/history rows). Requirements: Proven track record with FlutterFlow state management and action chains. Strong background with Supabase relational schemas, data types, and database triggers. Independent freelancer only (no agencies).