C内核流量计算方法优化，前端文件名称读取优化

frontend/src/App.tsx

@@ -29,6 +29,7 @@ import {
   FileDown,
   FileUp,
   FlipHorizontal2,
+  FlipVertical2,
   FolderOpen,
   Grip,
   ListChecks,
@@ -5950,6 +5951,50 @@ function FlowWorkbench() {
     );
   }, [appendConsoleEntry, recordHistory, selectedNodeId, setEdges, setNodes]);
 
+  const mirrorSelectionVertically = useCallback(() => {
+    const selectedIds = new Set(
+      nodesRef.current
+        .filter((node) => node.selected || node.id === selectedNodeId)
+        .map((node) => node.id),
+    );
+    if (selectedIds.size === 0) {
+      appendConsoleEntry("warning", "请先选择需要镜像的组件");
+      return;
+    }
+    recordHistory();
+    const previousNodes = nodesRef.current;
+    const mirroredNodes = previousNodes.map((node) =>
+      selectedIds.has(node.id)
+        ? {
+            ...node,
+            data: {
+              ...node.data,
+              // Reflect in canvas coordinates: Sy R(theta) Sx(m) = R(180-theta) Sx(!m).
+              rotation: normalizeNodeRotation((540 - normalizeNodeRotation(node.data.rotation)) % 360),
+              mirrored: !node.data.mirrored,
+            },
+          }
+        : node,
+    );
+    const { remainingEdges, removedEdges } = disconnectInvalidatedContactEdges(
+      previousNodes,
+      mirroredNodes,
+      edgesRef.current,
+      selectedIds,
+    );
+    nodesRef.current = mirroredNodes;
+    edgesRef.current = remainingEdges;
+    setNodes(mirroredNodes);
+    if (removedEdges.length > 0) {
+      setEdges(remainingEdges);
+      appendConsoleEntry(
+        "info",
+        `镜像使接口分离，已断开 ${removedEdges.length} 个接触连接`,
+      );
+    }
+    appendConsoleEntry("info", `已竖直镜像 ${selectedIds.size} 个组件`);
+  }, [appendConsoleEntry, recordHistory, selectedNodeId, setEdges, setNodes]);
+
   const handleNodesChange = useCallback(
     (changes: NodeChange<SimulationNode>[]) => {
       const removesNodes = changes.some((change) => change.type === "remove");
@@ -7391,7 +7436,7 @@ function FlowWorkbench() {
       const loadedEdges = edgeNormalization.edges;
       setNodes(loadedNodes);
       setEdges(loadedEdges);
-      setProjectName(project.name || "untitled");
+      setProjectName(project.name.trim() || "untitled");
       setSimulationConfig({ ...defaultSimulationConfig, ...project.simulation });
       setSelectedNodeId(null);
       setSelectedEdgeId(null);
@@ -7472,7 +7517,8 @@ function FlowWorkbench() {
         return;
       }
       applyProject(
-        project,
+        // Older entries may still contain a name that differs from their storage key.
+        { ...project, name },
         `工程已加载：${project.nodes.length} 个组件，${project.edges.length} 条连接`,
       );
     } catch (error) {
@@ -7505,7 +7551,11 @@ function FlowWorkbench() {
       if (!project) {
         throw new Error("文件不是有效的 ReactFlow 工程 JSON");
       }
-      applyProject(project, `已导入工程：${file.name}`);
+      const importedName = file.name.trim().replace(/\.json$/i, "").trim();
+      applyProject(
+        { ...project, name: importedName || project.name.trim() || "untitled" },
+        `已导入工程：${file.name}`,
+      );
     } catch (error) {
       appendConsoleEntry("error", `导入失败：${formatError(error)}`);
     }
@@ -8058,7 +8108,7 @@ function FlowWorkbench() {
       }
       if (
         pendingPasteRef.current &&
-        ((event.shiftKey && !commandKey && !event.altKey && key === "h") ||
+        ((event.shiftKey && !commandKey && !event.altKey && ["h", "v"].includes(key)) ||
           (commandKey && ["a", "c", "v", "y", "z"].includes(key)))
       ) {
         event.preventDefault();
@@ -8067,6 +8117,9 @@ function FlowWorkbench() {
       if (event.shiftKey && !commandKey && !event.altKey && key === "h") {
         event.preventDefault();
         mirrorSelection();
+      } else if (event.shiftKey && !commandKey && !event.altKey && key === "v") {
+        event.preventDefault();
+        mirrorSelectionVertically();
       } else if (commandKey && key === "z") {
         event.preventDefault();
         event.shiftKey ? redo() : undo();
@@ -8093,6 +8146,7 @@ function FlowWorkbench() {
     cancelPortConnection,
     copySelection,
     mirrorSelection,
+    mirrorSelectionVertically,
     pasteSelection,
     redo,
     rotatePendingPaste,
@@ -8753,6 +8807,12 @@ function FlowWorkbench() {
             onClick={mirrorSelection}
             pressed={allSelectedNodesMirrored}
           />
+          <ToolbarButton
+            disabled={Boolean(pendingPaste) || selectedNodesForTools.length === 0}
+            icon={FlipVertical2}
+            label="竖直镜像 (Shift+V)"
+            onClick={mirrorSelectionVertically}
+          />
         </div>
         <span aria-hidden="true" className="toolbar-separator" />
         <div aria-label="画布显示" className="toolbar-group" role="group">