Enable npx execution for MCP server

Remove import.meta.url entry point guard that prevented npx from
invoking main(), and bump version to 0.1.7.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ironclads/incus-mcp",
-  "version": "0.1.6",
+  "version": "0.1.7",
   "description": "MCP server for Incus container management",
   "main": "build/index.js",
   "type": "module",

src/index.ts

@@ -343,9 +343,7 @@ async function main() {
   await server.run();
 }
 
-if (import.meta.url === `file://${process.argv[1]}`) {
 main().catch((error) => {
   console.error('Server error:', error);
   process.exit(1);
 });
-}