feat: add terminal input hook for extensions

packages/coding-agent/src/modes/interactive/interactive-mode.ts

@@ -1368,6 +1368,7 @@ export class InteractiveMode {
 			confirm: (title, message, opts) => this.showExtensionConfirm(title, message, opts),
 			input: (title, placeholder, opts) => this.showExtensionInput(title, placeholder, opts),
 			notify: (message, type) => this.showExtensionNotify(message, type),
+			onTerminalInput: (handler) => this.ui.addInputListener(handler),
 			setStatus: (key, text) => this.setExtensionStatus(key, text),
 			setWorkingMessage: (message) => {
 				if (this.loadingAnimation) {