新增分段管理

MiGu.Server/Controllers/ProjectionController.cs

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+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+
+namespace MiGu.Server.Controllers;
+
+/// <summary>
+/// 投影 API 占位：真实落地时由 YARP 反代到 SimpleLite WebAPI 的 /api/projection/* 路径。
+/// 本地 Mock 数据仅用于无 SimpleLite 运行时的开发联调。
+///
+/// AR-4: 全 class 加 [Authorize] —— 任何登录用户都能读 mock 投影数据；未登录直接 401。
+/// </summary>
+[ApiController]
+[Authorize]
+[Route("api/projection")]
+public class ProjectionController : ControllerBase
+{
+    [HttpGet("sites")]
+    public IActionResult Sites() => Ok(new[]
+    {
+        new { id = "S001", name = "A 区-入库点", x = 1000, y = 2000 },
+        new { id = "S002", name = "A 区-出库点", x = 3000, y = 2000 },
+        new { id = "S003", name = "B 区-缓存区", x = 5000, y = 2000 }
+    });
+
+    [HttpGet("tracks")]
+    public IActionResult Tracks() => Ok(new[]
+    {
+        new { id = "T001", kind = "line", fromSiteId = "S001", toSiteId = "S002" },
+        new { id = "T002", kind = "line", fromSiteId = "S002", toSiteId = "S003" }
+    });
+
+    [HttpGet("cars")]
+    public IActionResult Cars() => Ok(new[]
+    {
+        new { id = "C01", name = "AGV-001", state = "running", batterySoc = 0.86 },
+        new { id = "C02", name = "AGV-002", state = "idle", batterySoc = 0.42 }
+    });
+
+    [HttpGet("missions")]
+    public IActionResult Missions() => Ok(new[]
+    {
+        new { id = "M01", name = "A 区送料 #1", status = "running", priority = 50 },
+        new { id = "M02", name = "A→B 缓存搬运", status = "queued", priority = 60 }
+    });
+}