feat: initial commit - complete website monitoring application

Build a comprehensive website monitoring application with ReasonML, OCaml, and server-reason-react.

Features:
- Real-time website monitoring with HTTP status checks
- Email and webhook alerting system
- Beautiful admin dashboard with Tailwind CSS
- Complete REST API for CRUD operations
- Background monitoring scheduler
- Multi-container Docker setup with 1-core CPU constraint
- PostgreSQL database with Caqti
- Full documentation and setup guides

Tech Stack:
- OCaml 5.0+ with ReasonML
- Dream web framework
- server-reason-react for UI
- PostgreSQL 16 database
- Docker & Docker Compose

Files:
- 9 OCaml source files (1961 LOC)
- 6 documentation files (1603 LOC)
- Complete Docker configuration
- Comprehensive API documentation

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CONTRIBUTING.md

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+# Contributing to Website Monitor
+
+Thank you for your interest in contributing to Website Monitor! This document provides guidelines and instructions for contributing to the project.
+
+## Development Setup
+
+1. **Prerequisites**:
+   - OCaml 5.0+
+   - OPAM package manager
+   - Docker (optional, but recommended)
+   - PostgreSQL 14+ (for local development)
+
+2. **Clone and Setup**:
+   ```bash
+   git clone <repository-url>
+   cd test3
+   opam switch create . 5.2.0
+   eval $(opam env)
+   opam install . --deps-only --with-test
+   ```
+
+3. **Build and Test**:
+   ```bash
+   make build
+   make test
+   ```
+
+4. **Run Locally**:
+   ```bash
+   docker-compose -f docker/docker-compose.dev.yml up -d
+   DATABASE_URL="postgresql://monitor_user:dev_password@localhost:5433/website_monitor_dev" dune exec bin/main.exe
+   ```
+
+## Code Style
+
+### OCaml/ReasonML
+
+- Use 4 spaces for indentation (no tabs)
+- Follow OCaml naming conventions:
+  - Modules: `PascalCase`
+  - Types: `PascalCase`
+  - Values: `snake_case`
+  - Constants: `ALL_CAPS`
+
+### Comments
+
+- Document public functions with comments
+- Use `(* ... *)` for multi-line comments
+- Explain non-obvious logic
+
+### Error Handling
+
+- Use `Lwt.catch` for async error handling
+- Log errors appropriately using `Logs` module
+- Provide meaningful error messages
+
+## Testing
+
+### Unit Tests
+
+- Write unit tests for all public functions
+- Use `OUnit` framework
+- Place tests in the `test/` directory
+
+### Integration Tests
+
+- Test API endpoints
+- Test database operations
+- Test alert functionality
+
+### Running Tests
+
+```bash
+# Run all tests
+make test
+
+# Run specific test
+dune runtest --focus test_name
+```
+
+## Pull Request Process
+
+1. **Fork and Branch**:
+   ```bash
+   git fork
+   git checkout -b feature/your-feature-name
+   ```
+
+2. **Make Changes**:
+   - Write clean, well-documented code
+   - Add/update tests
+   - Update documentation if needed
+
+3. **Commit**:
+   ```bash
+   git add .
+   git commit -m "feat: add your feature description"
+   ```
+
+4. **Push and PR**:
+   ```bash
+   git push origin feature/your-feature-name
+   ```
+
+   Then create a pull request on GitHub.
+
+### Commit Message Format
+
+Follow conventional commits:
+
+- `feat:` - New feature
+- `fix:` - Bug fix
+- `docs:` - Documentation changes
+- `style:` - Code style changes (formatting)
+- `refactor:` - Code refactoring
+- `test:` - Test changes
+- `chore:` - Build process or auxiliary tool changes
+
+Example:
+```
+feat: add webhook alert type
+
+Add support for webhook alerts with configurable
+URL, method, headers, and body template.
+
+Closes #123
+```
+
+## Project Structure
+
+```
+test3/
+├── bin/              # Application binaries
+│   ├── main.ml       # Main entry point
+│   └── init_db.ml    # Database initialization
+├── lib/              # Library code
+│   ├── database.ml   # Database models and queries
+│   ├── monitor.ml    # Website monitoring logic
+│   ├── alert.ml      # Alerting system
+│   ├── api.ml        # REST API handlers
+│   ├── ui.ml         # Server-side React UI
+│   └── scheduler.ml  # Background scheduler
+├── test/             # Tests
+│   └── test.ml       # Unit tests
+├── docker/           # Docker configurations
+└── docs/             # Additional documentation
+```
+
+## Feature Ideas
+
+We welcome contributions for:
+
+- **SMS alerts** (Twilio, etc.)
+- **Slack integration**
+- **Push notifications**
+- **Performance metrics tracking**
+- **Multi-user support**
+- **Dashboard widgets**
+- **Export reports**
+- **API authentication**
+- **Rate limiting**
+- **Custom check scripts**
+
+## Getting Help
+
+- Open an issue for bugs or questions
+- Join our discussions for feature ideas
+- Check existing PRs and issues before starting
+
+## License
+
+By contributing, you agree that your contributions will be licensed under the MIT License.
+
+## Thank You!
+
+We appreciate your contributions to making Website Monitor better!