fix(coding-agent): use key helpers for arrow keys and Enter

Fixed arrow key and Enter detection in selector components to work
with Kitty protocol when Caps Lock or Num Lock is enabled.

Updated: oauth-selector, user-message-selector, hook-selector,
hook-input, model-selector, session-selector

packages/coding-agent/src/modes/interactive/components/hook-input.ts

@@ -2,7 +2,7 @@
  * Simple text input component for hooks.
  */
 
-import { Container, Input, isEscape, Spacer, Text } from "@mariozechner/pi-tui";
+import { Container, Input, isEnter, isEscape, Spacer, Text } from "@mariozechner/pi-tui";
 import { theme } from "../theme/theme.js";
 import { DynamicBorder } from "./dynamic-border.js";
 
@@ -47,7 +47,7 @@ export class HookInputComponent extends Container {
 
 	handleInput(keyData: string): void {
 		// Enter
-		if (keyData === "\r" || keyData === "\n") {
+		if (isEnter(keyData) || keyData === "\n") {
 			this.onSubmitCallback(this.input.getValue());
 			return;
 		}