feat(web): NetX workbench, UME-only UI, i18n, and header status

- Replace sidebar app with workbench home and module tabs (openOrFocusModule)

- Remove legacy pages; add module registry, shared tab channel, WEB.md

- Add zh/en i18n, global ToastProvider, restore oclaw bridge pill in header

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

web/src/utils/moduleWindows.ts

@@ -0,0 +1,68 @@
+import { getModuleById } from "../config/modules";
+import {
+  broadcastMessage,
+  createFocusRequestId,
+  focusWindowSafe,
+  registerBroadcastListener,
+  waitForFocusAck,
+} from "./tabChannel";
+
+export type ModuleWindowSpec = {
+  moduleId: string;
+  path: string;
+};
+
+const MODULE_CHANNEL = "netx-module-nav";
+
+type FocusModuleMessage = {
+  type: "focus-module";
+  moduleId: string;
+  path: string;
+  requestId: string;
+};
+
+export function moduleWindowName(moduleId: string): string {
+  return `netx-module-${moduleId}`;
+}
+
+function moduleAckKey(moduleId: string): string {
+  return `netx-mod-focus-ack-${moduleId}`;
+}
+
+export function registerModuleWindow(moduleId: string): () => void {
+  try {
+    window.name = moduleWindowName(moduleId);
+  } catch {
+    /* ignore */
+  }
+
+  return registerBroadcastListener<FocusModuleMessage>(MODULE_CHANNEL, moduleAckKey(moduleId), (data) => {
+    const targetPath = String(data.path || "").trim();
+    if (targetPath && window.location.pathname !== targetPath) {
+      window.location.assign(targetPath);
+    }
+    window.focus();
+  });
+}
+
+export function openOrFocusModule({ moduleId, path }: ModuleWindowSpec): void {
+  const mod = getModuleById(moduleId);
+  const targetPath = mod?.path ?? path;
+  const requestId = createFocusRequestId(`mod-${moduleId}`);
+  const name = moduleWindowName(moduleId);
+
+  broadcastMessage<FocusModuleMessage>(MODULE_CHANNEL, {
+    type: "focus-module",
+    moduleId,
+    path: targetPath,
+    requestId,
+  });
+
+  focusWindowSafe(window.open(targetPath, name));
+
+  waitForFocusAck(moduleAckKey(moduleId), requestId, () => {
+    focusWindowSafe(window.open(targetPath, name));
+  });
+}
+
+export { moduleIdFromPath } from "../config/modules";