fix(coding-agent): bundle OAuth flows in Bun binaries

packages/coding-agent/src/bun/cli.ts

@@ -1,9 +1,12 @@
 #!/usr/bin/env node
+import { registerBunOAuthFlows } from "@earendil-works/pi-ai/bun-oauth";
 import { APP_NAME } from "../config.ts";
 
 process.title = APP_NAME;
 process.emitWarning = (() => {}) as typeof process.emitWarning;
 
+registerBunOAuthFlows();
+
 import { restoreSandboxEnv } from "./restore-sandbox-env.ts";
 
 restoreSandboxEnv();