Add new admin panel, failover, dns fallback, providers, limiters. Update XHTTP

service/admin_panel/web/src/main.tsx

@@ -0,0 +1,50 @@
+import { StrictMode } from "react";
+import { createRoot } from "react-dom/client";
+import { BrowserRouter } from "react-router-dom";
+import { LocalizationProvider } from "@mui/x-date-pickers";
+import { AdapterDayjs } from "@mui/x-date-pickers/AdapterDayjs";
+// Bundle Inter locally — Vite hashes the woff/woff2 files into the build
+// so the SPA serves them from the same origin and never reaches out to
+// fonts.gstatic.com. Each weight import is the only side-effect path that
+// registers an @font-face rule for that weight.
+import "@fontsource/inter/400.css";
+import "@fontsource/inter/500.css";
+import "@fontsource/inter/600.css";
+import "@fontsource/inter/700.css";
+import { App } from "./App";
+import { AuthProvider } from "./auth/AuthContext";
+import { AppThemeProvider } from "./theme/AppThemeProvider";
+import { NotificationsProvider } from "./notifications/NotificationsProvider";
+
+const container = document.getElementById("root");
+if (!container) throw new Error("missing #root");
+
+createRoot(container).render(
+  <StrictMode>
+    <AppThemeProvider>
+      {/* NotificationsProvider sits between the theme and the rest of
+          the app so toast Alerts pick up the active palette, and so
+          AuthProvider can call `useNotify` from its global 401 handler
+          (clearing credentials + announcing "Session expired" in one
+          shot). */}
+      <NotificationsProvider>
+        {/* LocalizationProvider feeds the MUI X date/time pickers used by the
+            datetime-range filter. dayjs is small (~7 KB gzipped) and matches
+            the format strings the manager API accepts. */}
+        <LocalizationProvider dateAdapter={AdapterDayjs}>
+          {/* BrowserRouter so deep routes (e.g. /users) are real URLs
+              shareable across users / bookmarkable / discoverable by
+              copy-paste. The Go backend serves the SPA's index.html for
+              every unknown path (see service/admin_panel/service.go), so
+              the browser always boots the bundle and react-router takes
+              over client-side. */}
+          <BrowserRouter>
+            <AuthProvider>
+              <App />
+            </AuthProvider>
+          </BrowserRouter>
+        </LocalizationProvider>
+      </NotificationsProvider>
+    </AppThemeProvider>
+  </StrictMode>,
+);