✨ feat(planning): 添加离线飞拍规划能力

* 固化离线飞拍轨迹加载、保存和规划结果。

* 真机初始化失败时保留模型加载后的离线规划能力。

* 更新状态接口、调试页和回归测试覆盖。

tests/Flyshot.Server.IntegrationTests/StatusEndpointTests.cs

@@ -113,13 +113,15 @@ public sealed class StatusEndpointTests(FlyshotServerFactory factory) : IClassFi
 
         Assert.Equal("ok", root.GetProperty("status").GetString());
         Assert.True(root.GetProperty("isSetup").GetBoolean());
+        Assert.Equal("RealReady", root.GetProperty("operatingMode").GetString());
+        Assert.True(root.GetProperty("canPlanOffline").GetBoolean());
+        Assert.True(root.GetProperty("canExecuteRealMotion").GetBoolean());
         Assert.Equal("FANUC_LR_Mate_200iD", root.GetProperty("robotName").GetString());
         Assert.Equal(6, root.GetProperty("degreesOfFreedom").GetInt32());
         var uploadedTrajectories = root.GetProperty("uploadedTrajectories")
             .EnumerateArray()
             .Select(static value => value.GetString())
             .ToArray();
-        Assert.Contains("20251015", uploadedTrajectories);
         Assert.Contains("UTTC_MS11", uploadedTrajectories);
         Assert.Equal("Connected", snapshot.GetProperty("connectionState").GetString());
         Assert.True(snapshot.GetProperty("isEnabled").GetBoolean());
@@ -139,11 +141,6 @@ public sealed class StatusEndpointTests(FlyshotServerFactory factory) : IClassFi
             Assert.Equal(HttpStatusCode.OK, setupResponse.StatusCode);
         }
 
-        using (var activeControllerResponse = await client.PostAsync("/set_active_controller/?sim=true", content: null))
-        {
-            Assert.Equal(HttpStatusCode.OK, activeControllerResponse.StatusCode);
-        }
-
         using (var connectRobotResponse = await client.PostAsync("/connect_robot/?ip=192.168.10.101", content: null))
         {
             Assert.Equal(HttpStatusCode.OK, connectRobotResponse.StatusCode);