✨ feat(fanuc): 添加直角坐标点动功能与相关接口

* 新增 `MovePose` 方法，支持以直角坐标执行点到点移动。
* 引入 `LegacyCartesianPoseRequest` 类，处理直角位姿请求体的解析与验证。
* 更新 `LegacyHttpApiController`，实现 `/move_pose/` 路由以支持新功能。
* 增强状态快照元数据，提供机器人初始化状态与已上传轨迹信息。
* 更新前端状态页面，增加直角坐标点动控制面板与步长设置选项。
* 相关文档与测试用例同步更新，确保新功能的完整性与稳定性。

tests/Flyshot.Server.IntegrationTests/StatusEndpointTests.cs

@@ -34,6 +34,39 @@ public sealed class StatusEndpointTests(FlyshotServerFactory factory) : IClassFi
         Assert.Contains("/api/status/snapshot", script, StringComparison.Ordinal);
     }
 
+    /// <summary>
+    /// 状态页应当提供直角坐标点动按钮，并复用现有 MovePose HTTP 接口。
+    /// </summary>
+    [Fact]
+    public async Task GetStatusPageAssets_ExposeCartesianJogControls()
+    {
+        using var client = factory.CreateClient();
+
+        using var htmlResponse = await client.GetAsync("/status.html");
+        Assert.Equal(HttpStatusCode.OK, htmlResponse.StatusCode);
+
+        var html = await htmlResponse.Content.ReadAsStringAsync();
+        Assert.Contains("直角坐标点动", html, StringComparison.Ordinal);
+        Assert.Contains("id=\"linear-step\"", html, StringComparison.Ordinal);
+        Assert.Contains("id=\"angular-step\"", html, StringComparison.Ordinal);
+
+        foreach (var axis in new[] { "x", "y", "z", "w", "p", "r" })
+        {
+            Assert.Contains($"data-axis=\"{axis}\"", html, StringComparison.Ordinal);
+            Assert.Contains($"data-axis=\"{axis}\" data-direction=\"1\"", html, StringComparison.Ordinal);
+            Assert.Contains($"data-axis=\"{axis}\" data-direction=\"-1\"", html, StringComparison.Ordinal);
+        }
+
+        using var scriptResponse = await client.GetAsync("/assets/status.js");
+        Assert.Equal(HttpStatusCode.OK, scriptResponse.StatusCode);
+
+        var script = await scriptResponse.Content.ReadAsStringAsync();
+        Assert.Contains("/move_pose/", script, StringComparison.Ordinal);
+        Assert.Contains("cartesianPose", script, StringComparison.Ordinal);
+        Assert.Contains("pointerdown", script, StringComparison.Ordinal);
+        Assert.Contains("pointerup", script, StringComparison.Ordinal);
+    }
+
     /// <summary>
     /// 验证状态快照 API 会返回运行时连接、使能、速度和机器人元数据。
     /// </summary>