Add topology link aggregation and fix WebCRT clipboard.

Default logical bundles for parallel links with optional physical expand and clearer NE-named ports; capture selection on context menu so copy/paste works again.

Co-authored-by: Cursor <cursoragent@cursor.com>

web/src/i18n/en.ts

@@ -1226,6 +1226,8 @@ const en = {
       findClose: "Close find",
       copy: "Copy",
       paste: "Paste",
+      pasteEmpty: "Clipboard is empty",
+      pasteFailed: "Cannot read clipboard (try Ctrl+Shift+V or check browser permission)",
       clear: "Clear",
       pasting: "Pasting {{done}}/{{total}} lines…",
       wsError: "[WebSocket error]",
@@ -1335,6 +1337,11 @@ const en = {
     renameNodePrompt: "Node display name",
     sourcePort: "Local port",
     targetPort: "Remote port",
+    endpointA: "Endpoint A",
+    endpointB: "Endpoint B",
+    port: "port",
+    expandPhysicalLinks: "Expand physical links",
+    linkMembers: "Physical members ({{count}})",
     canvasHint:
       "Left tree lists regions with a physical map and optional custom maps. Open a map to edit devices; use Add NE and save positions.",
     selected: "Selected",

web/src/i18n/zh.ts

@@ -1220,6 +1220,8 @@ const zh = {
       findClose: "关闭查找",
       copy: "复制",
       paste: "粘贴",
+      pasteEmpty: "剪贴板为空",
+      pasteFailed: "无法读取剪贴板（请用 Ctrl+Shift+V 或检查浏览器权限）",
       clear: "清空",
       pasting: "粘贴中 {{done}}/{{total}} 行…",
       wsError: "[WebSocket 错误]",
@@ -1329,6 +1331,11 @@ const zh = {
     renameNodePrompt: "网元显示名称",
     sourcePort: "本端端口",
     targetPort: "对端端口",
+    endpointA: "端点 A",
+    endpointB: "端点 B",
+    port: "端口",
+    expandPhysicalLinks: "展开物理链路",
+    linkMembers: "物理成员（{{count}}）",
     canvasHint:
       "左侧为区域目录（物理拓扑 + 自定义图）；打开本图后进入设备画布，用「添加网元」上图并保存。",
     selected: "已选节点",