feat: interactive AskUser with arrow-key selection

- Add interactive option selection for AskUserQuestion tool
  (arrow keys ↑↓, Enter confirm, 1-9 quick select, Esc cancel)
- Last option with '其他/Other' enters free text input mode
- New ASK_USER_STRUCTURED_CALLBACK in AskUserQuestionTool
  accepts (question, options) BiFunction for structured interaction
- ClaudeCodeComponent renders option list with ❯ indicator
- Cursor position adjusts for variable-height ask area
- Falls back to simple text prompt when no options provided

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src/main/java/com/claudecode/tui/JinkReplSession.java

@@ -151,8 +151,12 @@ public class JinkReplSession {
     private void setupToolContextCallbacks() {
         var toolContext = agentLoop.getToolContext();
         if (toolContext != null) {
+            // 简单文本回调（兜底）
             toolContext.set(AskUserQuestionTool.USER_INPUT_CALLBACK,
                     (Function<String, String>) this::askUserInTui);
+            // 结构化回调（支持交互式选择）
+            toolContext.set(AskUserQuestionTool.ASK_USER_STRUCTURED_CALLBACK,
+                    (java.util.function.BiFunction<String, java.util.List<String>, String>) this::askUserStructured);
         }
     }
 
@@ -213,7 +217,7 @@ public class JinkReplSession {
         }
     }
 
-    /** 在 TUI 中请求用户输入（AskUser 工具） */
+    /** 在 TUI 中请求用户输入（AskUser 工具 — 简单文本模式） */
     private String askUserInTui(String prompt) {
         finishCurrentStreaming();
         component.addMessage(new SystemMsg(prompt, Color.BRIGHT_CYAN));
@@ -228,6 +232,30 @@ public class JinkReplSession {
         }
     }
 
+    /** 在 TUI 中请求用户输入（结构化模式 — 支持交互式选择） */
+    private String askUserStructured(String question, java.util.List<String> options) {
+        finishCurrentStreaming();
+
+        // 添加问题到消息列表
+        component.addMessage(new SystemMsg("🤔 " + question, Color.BRIGHT_CYAN));
+
+        CompletableFuture<String> future = new CompletableFuture<>();
+
+        if (options != null && !options.isEmpty()) {
+            // 有选项 — 使用交互式选择
+            component.requestAskUser(question, options, future::complete);
+        } else {
+            // 无选项 — 使用普通输入
+            component.requestPermission(future::complete);
+        }
+
+        try {
+            return future.get();
+        } catch (Exception e) {
+            return "(User cancelled)";
+        }
+    }
+
     /** 完成当前流式消息（如果存在） */
     private void finishCurrentStreaming() {
         component.finishStreamingMessage();