Web App Development and Review of Existing

1. Full Codebase & Architecture Review Audit the existing frontend/backend for structural issues, security gaps, and technical debt Identify anything that won't hold up under real user load or won't scale cleanly Recommend (and implement) a clear path to production-grade architecture 2. Claude API Integration Review Review how the app calls the Anthropic API (Claude Sonnet/Opus) — prompt structure, error handling, rate limiting, cost management, streaming vs. non-streaming, and data handling Ensure API keys, credentials, and user data are handled securely (no client-side exposure, proper env/secrets management) Flag any inefficient or costly usage patterns 3. UI/UX Design Pass Professional visual design pass — this is a B2B tool for project managers and subcontractors, so it needs to look credible and trustworthy, not like a prototype Clean up layout, typography, spacing, responsiveness (desktop-first, but must work on tablet/mobile in the field) Improve core user flows: onboarding, document upload/processing, submittal generation/review, account/billing 4. Scalability & Infrastructure Recommend and help implement proper hosting/deployment setup (CI/CD, staging vs. production environments) Database review — schema design, indexing, query performance Set up monitoring, logging, and error tracking (e.g., Sentry or similar) Ensure the app can handle concurrent users and larger file uploads (construction PDFs, drawing sets, multi-sheet submittals) 5. Security & Compliance Basics Authentication/authorization review Data isolation between customer accounts (multi-tenancy) Basic security hardening (OWASP top 10, input validation, file upload safety) 6. Launch Readiness Get the app to a state where it can be confidently demoed to prospective customers and onboarded without breaking Documentation of what was changed and why, plus a punch list of anything deferred