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/config/modules.ts

@@ -0,0 +1,56 @@
+/**
+ * Single registry for workbench modules. Add new modules here only.
+ */
+
+export type ModuleIconTone = "blue" | "green" | "amber";
+export type WorkbenchSection = "monitoring";
+
+export type ModuleDefinition = {
+  moduleId: string;
+  path: string;
+  section: WorkbenchSection;
+  labelKey: string;
+  descKey?: string;
+  iconTone: ModuleIconTone;
+  titleKey: string;
+};
+
+export const MODULES: readonly ModuleDefinition[] = [
+  {
+    moduleId: "ume",
+    path: "/ume",
+    section: "monitoring",
+    labelKey: "workbench.cards.umeSync",
+    descKey: "workbench.cards.umeSyncDesc",
+    iconTone: "blue",
+    titleKey: "layout.titleUme",
+  },
+] as const;
+
+export function getModuleById(moduleId: string): ModuleDefinition | undefined {
+  return MODULES.find((m) => m.moduleId === moduleId);
+}
+
+export function moduleIdFromPath(pathname: string): string | null {
+  for (const m of MODULES) {
+    if (pathname === m.path || pathname.startsWith(`${m.path}/`)) return m.moduleId;
+  }
+  return null;
+}
+
+export function getPageTitleKey(pathname: string): string {
+  const moduleId = moduleIdFromPath(pathname);
+  if (moduleId) {
+    const mod = getModuleById(moduleId);
+    if (mod) return mod.titleKey;
+  }
+  return "workbench.title";
+}
+
+export function modulesInSection(section: WorkbenchSection): ModuleDefinition[] {
+  return MODULES.filter((m) => m.section === section);
+}
+
+export function isWorkbenchPath(pathname: string): boolean {
+  return pathname === "/" || pathname === "/workbench";
+}