feat: report Claude CLI installation and gate unsupported versions

src/server/index.ts

@@ -45,3 +45,4 @@ export * from "./observability.ts";
 export * from "./model-catalog.ts";
 export { subscriptionControlsResponse, subscriptionBrowserResponse } from "./web-subscription-http.ts";
 export { sessionCost } from "./pricing.ts";
+export { claudeCodeInstallationStatus } from "./claude-code.ts";