chore: Update environment configuration and package dependencies for MCP server

- Change MCP_SERVER in .env.example to use port 7123
- Add USE_STDIO_TRANSPORT flag in .env.example for stdio transport mode
- Update bun.lock to include new dependencies: cors, express, ajv, and their type definitions
- Add new scripts for building and running the MCP server with stdio transport
- Introduce PUBLISHING.md for npm publishing guidelines
- Enhance README with detailed setup instructions and tool descriptions

PUBLISHING.md

@@ -0,0 +1,96 @@
+# Publishing to npm
+
+This document outlines the steps to publish the Home Assistant MCP server to npm.
+
+## Prerequisites
+
+1. You need an npm account. Create one at [npmjs.com](https://www.npmjs.com/signup) if you don't have one.
+2. You need to be logged in to npm on your local machine:
+   ```bash
+   npm login
+   ```
+3. You need to have all the necessary dependencies installed:
+   ```bash
+   npm install
+   ```
+
+## Before Publishing
+
+1. Make sure all tests pass:
+   ```bash
+   npm test
+   ```
+
+2. Build all the necessary files:
+   ```bash
+   npm run build        # Build for Bun
+   npm run build:node   # Build for Node.js
+   npm run build:stdio  # Build the stdio server
+   ```
+
+3. Update the version number in `package.json` following [semantic versioning](https://semver.org/):
+   - MAJOR version for incompatible API changes
+   - MINOR version for new functionality in a backward-compatible manner
+   - PATCH version for backward-compatible bug fixes
+
+4. Update the CHANGELOG.md file with the changes in the new version.
+
+## Publishing
+
+1. Publish to npm:
+   ```bash
+   npm publish
+   ```
+
+   If you want to publish a beta version:
+   ```bash
+   npm publish --tag beta
+   ```
+
+2. Verify the package is published:
+   ```bash
+   npm view homeassistant-mcp
+   ```
+
+## After Publishing
+
+1. Create a git tag for the version:
+   ```bash
+   git tag -a v1.0.0 -m "Version 1.0.0"
+   git push origin v1.0.0
+   ```
+
+2. Create a GitHub release with the same version number and include the changelog.
+
+## Testing the Published Package
+
+To test the published package:
+
+```bash
+# Install globally
+npm install -g homeassistant-mcp
+
+# Run the MCP server
+homeassistant-mcp
+
+# Or use npx without installing
+npx homeassistant-mcp
+```
+
+## Unpublishing
+
+If you need to unpublish a version (only possible within 72 hours of publishing):
+
+```bash
+npm unpublish homeassistant-mcp@1.0.0
+```
+
+## Publishing a New Version
+
+1. Update the version in package.json
+2. Update CHANGELOG.md
+3. Build all files
+4. Run tests
+5. Publish to npm
+6. Create a git tag
+7. Create a GitHub release