chore: Enhance MCP server execution and compatibility with Cursor mode

- Introduce environment variables for Cursor compatibility in silent-mcp.sh and npx-entry.cjs
- Implement process cleanup for existing MCP instances to prevent conflicts
- Adjust logging behavior based on execution context to ensure proper message handling
- Add test-cursor.sh script to simulate Cursor environment for testing purposes
- Refactor stdio-server.ts to manage logging and message flushing based on compatibility mode

silent-mcp.sh

@@ -1,14 +1,25 @@
 #!/bin/bash
 
+# Ensure we're running in a clean environment for MCP
 # Set silent environment variables
 export LOG_LEVEL=silent
 export USE_STDIO_TRANSPORT=true
 
-# Check if we're running from npx or directly
+# Explicitly mark that we are NOT in Cursor mode
+export CURSOR_COMPATIBLE=false
+
+# Flag to prevent recursive execution
+export SILENT_MCP_RUNNING=true
+
+# Clean up any existing processes - optional but can help with "already" errors
+# pkill -f "node.*stdio-server" >/dev/null 2>&1 || true
+
+# Direct execution - always use local file
 if [ -f "./dist/stdio-server.js" ]; then
-  # Direct run from project directory - use local file
+  # Keep stdout intact (for JSON-RPC messages) but redirect stderr to /dev/null
   node ./dist/stdio-server.js 2>/dev/null
 else 
-  # Run using npx
-  npx homeassistant-mcp 2>/dev/null
+  # If no local file, run directly through node using the globally installed package
+  # This avoids calling npx again which would create a loop
+  node $(npm root -g)/homeassistant-mcp/dist/stdio-server.js 2>/dev/null
 fi