docs: add MCP client integration documentation and scripts

- Update README with integration instructions for Cursor, Claude Desktop, and Cline
- Add configuration examples for different MCP client integrations
- Create Windows CMD script for starting MCP server
- Include configuration files for Claude Desktop and Cline clients

scripts/start_mcp.cmd

@@ -0,0 +1,21 @@
+@echo off
+setlocal
+
+:: Set environment variables
+set NODE_ENV=production
+
+:: Change to the script's directory
+cd /d "%~dp0"
+cd ..
+
+:: Start the MCP server
+echo Starting Home Assistant MCP Server...
+bun run start --port 8080
+
+if errorlevel 1 (
+    echo Error starting MCP server
+    pause
+    exit /b 1
+)
+
+pause