docs: Update README.md with comprehensive project features, installation instructions, and API endpoints

README.md

@@ -1,36 +1,147 @@
-This is a [Next.js](https://nextjs.org) project bootstrapped with [`create-next-app`](https://github.com/vercel/next.js/tree/canary/packages/create-next-app).
+# Project Management Panel
+
+A comprehensive project management system built with Next.js for managing construction/engineering projects, contracts, and tasks.
+
+## Features
+
+### 📋 Project Management
+
+- Create and manage projects with detailed information
+- Link projects to contracts
+- Track project deadlines and progress
+- Add custom notes and contact information
+
+### 📄 Contract Management
+
+- Create and manage contracts
+- Track contract details including customer and investor information
+- Link multiple projects to contracts
+- Monitor contract deadlines
+
+### ✅ Task Management
+
+- Create task templates for reusable workflows
+- Add tasks to projects (both template-based and custom)
+- Track task status and priorities
+- Monitor task deadlines and completion
+
+### 📊 Dashboard
+
+- Overview of project statistics
+- Recent projects display
+- Task completion tracking
+- Quick access to pending items
+
+## Tech Stack
+
+- **Framework**: Next.js 15.1.8
+- **Database**: SQLite with better-sqlite3
+- **Styling**: Tailwind CSS
+- **Date Handling**: date-fns
+- **Frontend**: React 19
 
 ## Getting Started
 
-First, run the development server:
+### Prerequisites
+
+- Node.js (version 16 or higher)
+- npm or yarn
+
+### Installation
+
+1. Clone the repository
+
+```bash
+git clone <repository-url>
+cd panel
+```
+
+2. Install dependencies
+
+```bash
+npm install
+```
+
+3. Start the development server
 
 ```bash
 npm run dev
-# or
-yarn dev
-# or
-pnpm dev
-# or
-bun dev
 ```
 
-Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
+4. Open [http://localhost:3000](http://localhost:3000) in your browser
 
-You can start editing the page by modifying `app/page.js`. The page auto-updates as you edit the file.
+### Database Setup
 
-This project uses [`next/font`](https://nextjs.org/docs/app/building-your-application/optimizing/fonts) to automatically optimize and load [Geist](https://vercel.com/font), a new font family for Vercel.
+The application uses SQLite database which will be automatically initialized on first run. The database file is located at `data/database.sqlite`.
 
-## Learn More
+## Project Structure
 
-To learn more about Next.js, take a look at the following resources:
+```
+src/
+├── app/                    # Next.js app router pages
+│   ├── api/               # API routes
+│   │   ├── contracts/     # Contract management endpoints
+│   │   ├── projects/      # Project management endpoints
+│   │   ├── project-tasks/ # Task management endpoints
+│   │   └── tasks/         # Task template endpoints
+│   ├── contracts/         # Contract pages
+│   ├── projects/          # Project pages
+│   └── tasks/             # Task management pages
+├── components/            # Reusable React components
+│   ├── ui/               # UI components (Button, Card, etc.)
+│   └── forms/            # Form components
+└── lib/                  # Utility functions
+    ├── queries/          # Database query functions
+    └── db.js            # Database connection
+```
 
-- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API.
-- [Learn Next.js](https://nextjs.org/learn) - an interactive Next.js tutorial.
+## Available Scripts
 
-You can check out [the Next.js GitHub repository](https://github.com/vercel/next.js) - your feedback and contributions are welcome!
+- `npm run dev` - Start development server
+- `npm run build` - Build for production
+- `npm run start` - Start production server
+- `npm run lint` - Run ESLint
 
-## Deploy on Vercel
+## Database Schema
 
-The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.
+The application uses the following main tables:
 
-Check out our [Next.js deployment documentation](https://nextjs.org/docs/app/building-your-application/deploying) for more details.
+- **contracts** - Contract information
+- **projects** - Project details linked to contracts
+- **tasks** - Task templates
+- **project_tasks** - Tasks assigned to specific projects
+- **notes** - Project notes and updates
+
+## API Endpoints
+
+### Projects
+
+- `GET /api/projects` - Get all projects
+- `POST /api/projects` - Create new project
+- `GET /api/projects/[id]` - Get project by ID
+- `PUT /api/projects/[id]` - Update project
+- `DELETE /api/projects/[id]` - Delete project
+
+### Contracts
+
+- `GET /api/contracts` - Get all contracts
+- `POST /api/contracts` - Create new contract
+
+### Tasks
+
+- `GET /api/project-tasks` - Get project tasks or task templates
+- `POST /api/project-tasks` - Create new project task
+- `PATCH /api/project-tasks/[id]` - Update task status
+- `DELETE /api/project-tasks/[id]` - Delete task
+
+## Contributing
+
+1. Fork the repository
+2. Create a feature branch (`git checkout -b feature/amazing-feature`)
+3. Commit your changes (`git commit -m 'Add some amazing feature'`)
+4. Push to the branch (`git push origin feature/amazing-feature`)
+5. Open a Pull Request
+
+## License
+
+This project is private and proprietary.