feat(ai): add Codex device code login (#4911)

packages/coding-agent/CHANGELOG.md

@@ -55,6 +55,7 @@
 
 - Added `compat.forceAdaptiveThinking` support to custom Anthropic-compatible model configuration docs and validation ([#4797](https://github.com/earendil-works/pi-mono/pull/4797) by [@mbazso](https://github.com/mbazso)).
 - Added a standard unified patch to edit tool result details for SDK consumers ([#4821](https://github.com/earendil-works/pi/issues/4821)).
+- Added a Codex subscription login method selector with device-code auth for headless environments.
 
 ### Changed
 

packages/coding-agent/src/modes/interactive/components/login-dialog.ts

@@ -86,7 +86,7 @@ export class LoginDialogComponent extends Container implements Focusable {
 	/**
 	 * Called by onAuth callback - show URL and optional instructions
 	 */
-	showAuth(url: string, instructions?: string, options: { autoOpenBrowser?: boolean } = {}): void {
+	showAuth(url: string, instructions?: string): void {
 		this.contentContainer.clear();
 		this.contentContainer.addChild(new Spacer(1));
 		const linkedUrl = `\x1b]8;;${url}\x07${url}\x1b]8;;\x07`;
@@ -101,9 +101,7 @@ export class LoginDialogComponent extends Container implements Focusable {
 			this.contentContainer.addChild(new Text(theme.fg("warning", instructions), 1, 0));
 		}
 
-		if (options.autoOpenBrowser ?? true) {
-			this.openUrl(url);
-		}
+		this.openUrl(url);
 		this.tui.requestRender();
 	}