feat: 新增方案 C 的 Handoff 路由宿主，并让抽城市支持自然语言。

把图 JSON 编译成 CreateHandoffBuilderWith + WithHandoff；Agent 固定 Id 以免交接工具名错位；DeepSeek 关闭 thinking，避免多轮丢掉 reasoning_content 导致 400。
2026-09-01 17:56:41 +08:00
parent 2c5c6fd118
commit b0e89b6092
25 changed files with 960 additions and 27 deletions
@@ -0,0 +1,95 @@
+namespace MAF1.Decisions;
+
+/// <summary>
+/// CLI 版确认框。回车 / 1 = 结束查询；2 = 再输入城市；也可以直接打「成都」。
+/// ReadLine 和超时赛跑：到期返回 TimedOut，走默认方案。
+/// MAF1 工作流 CLI 与 MAF1.Route 共用。
+/// </summary>
+public static class ConsoleDecisionPrompt
+{
+    public static async Task<DecisionAnswer> WaitAsync(DecisionRequest request)
+    {
+        Console.WriteLine();
+        Console.WriteLine("[需要确认]");
+        Console.WriteLine(request.Prompt);
+        if (!string.IsNullOrWhiteSpace(request.Reason))
+        {
+            Console.WriteLine($"原因：{request.Reason}");
+        }
+
+        Console.WriteLine($"未及时确认将使用默认方案。等待 {request.TimeoutSeconds} 秒。");
+        for (int i = 0; i < request.Options.Count; i++)
+        {
+            DecisionOption option = request.Options[i];
+            string mark = option.IsDefault ? " ← 默认" : "";
+            Console.WriteLine($"  {i + 1}) {option.Label}{mark}");
+            if (!string.IsNullOrWhiteSpace(option.Description))
+            {
+                Console.WriteLine($"     {option.Description}");
+            }
+        }
+
+        Console.Write("输入序号，或直接回车采用默认：");
+        string? line = await ReadLineOrTimeoutAsync(request.Deadline);
+        if (line is null)
+        {
+            Console.WriteLine();
+            Console.WriteLine("未及时确认，采用默认方案：结束查询。");
+            return new DecisionAnswer { OptionId = request.DefaultOptionId, TimedOut = true };
+        }
+
+        line = line.Trim();
+        if (line.Length == 0 || line is "1" || line.Equals("stop", StringComparison.OrdinalIgnoreCase))
+        {
+            return new DecisionAnswer { OptionId = DecisionOptionIds.Stop };
+        }
+
+        if (line is "2" || line.Equals(DecisionOptionIds.QueryCities, StringComparison.OrdinalIgnoreCase))
+        {
+            Console.Write("请输入城市名（例如 成都、北京）：");
+            string? cities = await ReadLineOrTimeoutAsync(request.Deadline);
+            if (cities is null)
+            {
+                Console.WriteLine();
+                Console.WriteLine("未及时输入城市，采用默认方案：结束查询。");
+                return new DecisionAnswer { OptionId = DecisionOptionIds.Stop, TimedOut = true };
+            }
+
+            if (EmptyCityDecision.ParseCities(cities).Count == 0)
+            {
+                Console.WriteLine("没有有效城市名，采用默认方案：结束查询。");
+                return new DecisionAnswer { OptionId = DecisionOptionIds.Stop };
+            }
+
+            return new DecisionAnswer { OptionId = DecisionOptionIds.QueryCities, Text = cities };
+        }
+
+        if (EmptyCityDecision.ParseCities(line).Count > 0)
+        {
+            return new DecisionAnswer { OptionId = DecisionOptionIds.QueryCities, Text = line };
+        }
+
+        Console.WriteLine("无法识别输入，采用默认方案：结束查询。");
+        return new DecisionAnswer { OptionId = DecisionOptionIds.Stop };
+    }
+
+    /// <summary>超时返回 null。注意：超时后后台的 ReadLine 仍可能阻塞，学习项目可接受。</summary>
+    private static async Task<string?> ReadLineOrTimeoutAsync(DateTimeOffset deadline)
+    {
+        TimeSpan remain = deadline - DateTimeOffset.UtcNow;
+        if (remain <= TimeSpan.Zero)
+        {
+            return null;
+        }
+
+        Task<string?> read = Task.Run(() => Console.ReadLine());
+        Task delay = Task.Delay(remain);
+        Task finished = await Task.WhenAny(read, delay);
+        if (finished == delay)
+        {
+            return null;
+        }
+
+        return await read;
+    }
+}