chore: attribute MCP calls to SDK [DX-197] (#12)

* chore: integration tag added to client config

* fix: header added directly to client config

* feat: new header added to client config

* chore: origin -> tool

* chore: version tracking added to config

Author: tylerpina

src/config/contentful.ts

@@ -1,5 +1,6 @@
 import { ClientOptions } from 'contentful-management';
 import { env } from '../config/env.js';
+import { getVersion } from '../utils/getVersion.js';
 
 /**
  * Creates a default Contentful client configuration without actually initializing it.
@@ -13,6 +14,9 @@ export function getDefaultClientConfig(): ClientOptions {
     accessToken: env.data.CONTENTFUL_MANAGEMENT_ACCESS_TOKEN,
     host: env.data.CONTENTFUL_HOST,
     space: env.data.SPACE_ID,
+    headers: {
+      'X-Contentful-User-Agent-Tool': `contentful-mcp/${getVersion()}`, //Include user agent header for telemetry tracking
+    },
   };
 
   return clientConfig;

src/utils/getVersion.ts

@@ -0,0 +1,12 @@
+import { readFileSync } from 'node:fs';
+import { join } from 'node:path';
+import { fileURLToPath } from 'node:url';
+import { dirname } from 'node:path';
+
+export const getVersion = () => {
+  const __filename = fileURLToPath(import.meta.url);
+  const __dirname = dirname(__filename);
+  const packageJsonPath = join(__dirname, '../../package.json');
+  const packageJson = JSON.parse(readFileSync(packageJsonPath, 'utf8'));
+  return packageJson.version;
+};