[docs] Add README file for project overview

[iAMRA0]

View Palmier run: https://app.palmier.io/runs/job_35e65474-3d71-483c-832e-f8e89ada760c

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📚 This PR adds a comprehensive README.md file that provides complete documentation for the InkScribe medical handwriting recognition system. The README includes detailed project overview, architecture description, installation instructions, usage guidelines, and API documentation for this full-stack React/Express application.

🔍 Detailed Analysis

Key Changes

• Documentation Addition: Creates a new 214-line README.md file from scratch providing complete project documentation
• Project Overview: Documents InkScribe as a medical handwriting recognition system with React frontend, Express backend, and PostgreSQL database
• Technical Specifications: Details the full technology stack including React 18, TypeScript, Vite, ShadCN/UI, TanStack Query, Express.js, Drizzle ORM, and PostgreSQL
• User Guide: Provides comprehensive installation, usage, and development instructions

Technical Implementation

flowchart TD
    A[README.md] --> B[Project Overview]
    A --> C[Architecture Details]
    A --> D[Installation Guide]
    A --> E[Usage Instructions]
    A --> F[API Documentation]
    A --> G[Development Setup]
    
    B --> B1[Features List]
    B --> B2[Technology Stack]
    
    C --> C1[Frontend: React/TypeScript]
    C --> C2[Backend: Express/PostgreSQL]
    C --> C3[Key Components]
    
    D --> D1[Prerequisites]
    D --> D2[Step-by-step Setup]
    D --> D3[Environment Config]
    
    E --> E1[Handwriting Recognition]
    E --> E2[Manual Search]
    E --> E3[Canvas Controls]
    
    F --> F1[Recognition Endpoints]
    F --> F2[Search Endpoints]
    F --> F3[Statistics Endpoints]

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Impact

• Developer Onboarding: Significantly improves new developer experience with clear setup and usage instructions
• Project Understanding: Provides comprehensive overview of system architecture, features, and technical implementation
• Maintenance Support: Documents API endpoints, database schema, and project structure for easier maintenance and contributions
• Professional Presentation: Establishes the project as a well-documented, production-ready application with clear value proposition

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