docs: Restructure documentation and enhance configuration

- Reorganize MkDocs navigation structure with new sections
- Add configuration, security, and development environment documentation
- Remove outdated development and getting started files
- Update requirements and plugin configurations
- Improve overall documentation layout and content

docs/config/index.md

@@ -0,0 +1,30 @@
+# Configuration
+
+This section covers the configuration options available in the Home Assistant MCP Server.
+
+## Overview
+
+The MCP Server can be configured through various configuration files and environment variables. This section will guide you through the available options and their usage.
+
+## Configuration Files
+
+The main configuration files are:
+
+1. `.env` - Environment variables
+2. `config.yaml` - Main configuration file
+3. `devices.yaml` - Device-specific configurations
+
+## Environment Variables
+
+Key environment variables that can be set:
+
+- `MCP_HOST` - Host address (default: 0.0.0.0)
+- `MCP_PORT` - Port number (default: 8123)
+- `MCP_LOG_LEVEL` - Logging level (default: INFO)
+- `MCP_CONFIG_DIR` - Configuration directory path
+
+## Next Steps
+
+- See [System Configuration](../configuration.md) for detailed configuration options
+- Check [Environment Setup](../getting-started/configuration.md) for initial setup
+- Review [Security](../security.md) for security-related configurations