Complete Fabrication Shop Management SaaS Codebase

Complete SaaS codebase for fabrication shops to digitize their quote-to-invoice workflow. Replaces spreadsheets and email threads with structured quote building, customer approval portals, production stage tracking, change order management, and automated invoicing. Built for machine shops, welding shops, custom furniture makers, and metal fabricators who need to streamline their operational pipeline from initial quote through final payment.