fix(cli): send gemini-cli version as mcp client version (#13407)

Co-authored-by: Taylor Mullen <ntaylormullen@google.com>

packages/cli/src/config/config.ts

@@ -451,6 +451,7 @@ export async function loadCliConfig(
     workspaceDir: cwd,
     enabledExtensionOverrides: argv.extensions,
     eventEmitter: appEvents as EventEmitter<ExtensionEvents>,
+    clientVersion: await getVersion(),
   });
   await extensionManager.loadExtensions();
 
@@ -653,6 +654,7 @@ export async function loadCliConfig(
 
   return new Config({
     sessionId,
+    clientVersion: await getVersion(),
     embeddingModel: DEFAULT_GEMINI_EMBEDDING_MODEL,
     sandbox: sandboxConfig,
     targetDir: cwd,