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LexSight - AI-Powered Legal Document Analysis

Overview

LexSight is a Next.js application that makes legal documents simple and accessible for everyone. It helps simplify contracts, agreements, and compliance with AI technology for both legal and non-legal users.

Current State

  • Successfully imported from GitHub and configured for Replit environment
  • Next.js 15.3.3 application running on port 5000
  • Uses Google Genkit for AI functionality
  • Built with React, TypeScript, Tailwind CSS, and Radix UI components
  • Deployment configured for autoscale (npm run build -> npm start)
  • Frontend fully functional with responsive design
  • Database: Supabase PostgreSQL for persistent user and document storage
  • Authentication system with secure password hashing

Recent Changes

  • 2025-10-04: Fresh GitHub import successfully configured for Replit
    • Installed all npm dependencies (643 packages)
    • Configured Next.js for Replit proxy environment (already had allowedDevOrigins)
    • Dev server running on port 5000 with host 0.0.0.0 (required for Replit)
    • Configured deployment for autoscale production (npm run build -> npm start)
    • Verified frontend displays correctly - landing page fully functional
    • WebGL 3D effects gracefully fallback to solid background in headless environments
    • All TypeScript and LSP errors resolved
    • Application ready for use - needs Supabase credentials for database features
    • AI features optional - work without GEMINI_API_KEY with graceful degradation

Project Architecture

  • Frontend: Next.js 15 with React 18, TypeScript
  • Styling: Tailwind CSS with Radix UI components
  • Database: Supabase (PostgreSQL) for persistent data storage
  • Authentication: Custom auth with bcrypt password hashing
  • AI Integration: Google Genkit with Google AI (Gemini)
  • Build Tool: Next.js with Turbopack
  • 3D Graphics: OGL library for visual effects

Key Features

  • AI-powered document analysis
  • Risk analysis for legal documents
  • Clause summarization
  • Dark/light theme support
  • Responsive design with modern UI components

Environment Setup

  • Node.js application
  • Development server: npm run dev (port 5000)
  • Build command: npm run build
  • Production server: npm start

Database Setup

  • Database: Supabase PostgreSQL
  • Required Secrets: SUPABASE_URL, SUPABASE_ANON_KEY (need to be configured)
  • Setup Instructions: See SUPABASE_SETUP.md for complete database setup
  • Tables: users, documents (schema provided in supabase-schema.sql)
  • Security: Application-layer access control via session authentication
  • API Routes: All database operations are server-side and session-protected
  • Note: App works without database but signup/login require Supabase setup

Configuration Notes

  • Next.js configured with allowedDevOrigins for Replit proxy support
  • TypeScript errors ignored during build for rapid development
  • ESLint errors ignored during builds
  • Remote image patterns configured for placehold.co

AI Configuration

  • Requires GEMINI_API_KEY environment variable for AI features
  • AI functionality gracefully disabled if API key is not present
  • Includes flows for risk analysis and clause summarization