restructure frontend and add network settings

frontend/package.json

@@ -13,7 +13,10 @@
   },
   "dependencies": {
     "@ant-design/icons": "^6.1.0",
+    "@tanstack/react-query": "^5.90.12",
+    "@tanstack/react-query-devtools": "^5.91.1",
     "antd": "^6.0.0",
+    "axios": "^1.13.2",
     "react": "^19.1.1",
     "react-dom": "^19.1.1",
     "react-router-dom": "^7.9.4"

frontend/src/App.tsx

@@ -12,18 +12,16 @@ export default function App() {
   const [collapsed, setCollapsed] = useState(false);
   return (
     <>
-      <Layout style={{ minHeight: '100vh' }}>
-        <AppHeader />
-        <Layout>
+      <Layout className="app-root">
         <Sidebar collapsed={collapsed} onCollapse={setCollapsed} />
-          <Layout style={{ padding: '24px' }}>
-            <Content style={{ minHeight: 'calc(100vh - 64px)' }}>
+        <Layout className="app-main">
+          <AppHeader />
+          <Content>
             <Outlet />
           </Content>
-          </Layout>
-        </Layout>
-      </Layout>
           <AppFooter />
+        </Layout>
+      </Layout>
     </>
   );
 }

frontend/src/Layout/Sidebar.tsx

@@ -1,14 +1,16 @@
 // src/components/Sidebar.tsx
-import { HomeOutlined, InfoCircleOutlined, SettingOutlined } from '@ant-design/icons';
+import { ApartmentOutlined, HomeOutlined, InfoCircleOutlined, SettingOutlined } from '@ant-design/icons';
 import { Layout, Menu } from 'antd';
 import React from 'react';
 import { useLocation, useNavigate } from 'react-router-dom';
+import { PATHS } from '../routes';
 import '../theme/layout.less';
 
 const { Sider } = Layout;
 
 const menuItems = [
-  { key: '/', icon: <HomeOutlined />, label: 'Home' },
+  { key: PATHS.HOME, icon: <HomeOutlined />, label: 'Home' },
+  { key: PATHS.NETWORK, icon: <ApartmentOutlined />, label: 'Network' },
   { key: '/about', icon: <InfoCircleOutlined />, label: 'About' },
   { key: '/settings', icon: <SettingOutlined />, label: 'Settings' },
 ];

frontend/src/api/apiClient.ts

@@ -0,0 +1,55 @@
+// src/apiClient.ts
+import axios from "axios";
+import {
+    BridgeCreateRequest,
+    BridgeInfo,
+    BridgeRemoveRequest,
+    FullState,
+    InterfaceInfo,
+    RouteInfo,
+} from "../types/network";
+
+const BASE = "http://mitm.lan/api";
+
+export const api = axios.create({
+  baseURL: BASE,
+  headers: { "Content-Type": "application/json" },
+  timeout: 10000,
+});
+
+// Queries
+export const fetchInterfaces = async (): Promise<InterfaceInfo[]> => {
+  const res = await api.get<InterfaceInfo[]>("/network/interfaces");
+  return res.data;
+};
+
+export const fetchLinks = async (): Promise<InterfaceInfo[]> => {
+  const res = await api.get<InterfaceInfo[]>("/network/links");
+  return res.data;
+};
+
+export const fetchRoutes = async (): Promise<RouteInfo[]> => {
+  const res = await api.get<RouteInfo[]>("/network/routes");
+  return res.data;
+};
+
+export const fetchBridges = async (): Promise<BridgeInfo[]> => {
+  const res = await api.get<BridgeInfo[]>("/network/bridges");
+  return res.data;
+};
+
+export const fetchFullState = async (): Promise<FullState> => {
+  const res = await api.get<FullState>("/network/full-state");
+  return res.data;
+};
+
+// Mutations
+export const createBridge = async (req: BridgeCreateRequest) => {
+  const res = await api.post("network/bridge/create", req);
+  return res.data;
+};
+
+export const removeBridge = async (req: BridgeRemoveRequest) => {
+  const res = await api.post("network/bridge/remove", req);
+  return res.data;
+};

frontend/src/api/queryClient.ts

@@ -0,0 +1,15 @@
+// src/queryClient.ts
+import { QueryClient } from "@tanstack/react-query";
+
+export const queryClient = new QueryClient({
+  defaultOptions: {
+    queries: {
+      staleTime: 1000 * 20, // 20s
+      cacheTime: 1000 * 60 * 5,
+      refetchOnWindowFocus: false,
+    },
+    mutations: {
+      // default mutation behaviour
+    },
+  },
+});

frontend/src/appRouter.tsx

@@ -0,0 +1,35 @@
+// src/AppRouter.tsx
+import { Navigate, Route, Routes } from 'react-router-dom';
+import App from './App'; // your layout component (has <Outlet />)
+import Bridges from './pages/Bridges';
+import Home from './pages/Home';
+import { PATHS } from './routes';
+
+export default function AppRouter() {
+  return (
+    <Routes>
+      {/* App is the top-level layout; Outlet renders the active child route */}
+      <Route path={PATHS.ROOT} element={<App />}>
+        {/* When the user hits '/', redirect to '/home' */}
+        <Route index element={<Navigate to={PATHS.HOME} replace />} />
+
+        {/* Child routes - these render inside App's <Outlet /> */}
+        <Route path={PATHS.HOME.slice(1)} element={<Home />} />
+        <Route path={PATHS.NETWORK.slice(1)} element={<Bridges />} />
+
+        {/* Fallback (renders inside layout too) */}
+        <Route path="*" element={<NotFound />} />
+      </Route>
+    </Routes>
+  );
+}
+
+/** simple 404 rendered inside the layout */
+function NotFound() {
+  return (
+    <div style={{ padding: 16 }}>
+      <h2>404 – Not Found</h2>
+      <p>The requested page does not exist.</p>
+    </div>
+  );
+}

frontend/src/hooks/useNetwork.ts

@@ -0,0 +1,227 @@
+// src/hooks/useNetwork.ts
+import { useQuery, useQueryClient } from "@tanstack/react-query";
+import { useCallback, useState } from "react";
+import * as api from "../api/apiClient";
+import type {
+    BridgeCreateRequest,
+    BridgeInfo,
+    BridgeRemoveRequest,
+    FullState,
+    InterfaceInfo,
+    RouteInfo,
+} from "../types/network";
+
+/**
+ * useNetwork
+ *
+ * - queries start disabled (no automatic network calls)
+ * - calling fetchInterfaces()/fetchBridges()/... will:
+ *   1) fetch and cache the data right away (queryClient.fetchQuery)
+ *   2) enable the corresponding useQuery so it becomes "active" and will
+ *      auto-refetch based on the query options
+ *
+ * This gives "no initial auto-fetch" but "once fetched, auto-updates".
+ */
+export function useNetwork() {
+  const qc = useQueryClient();
+
+  // per-query enabled flags (start false => no automatic fetch)
+  const [interfacesEnabled, setInterfacesEnabled] = useState(false);
+  const [linksEnabled, setLinksEnabled] = useState(false);
+  const [routesEnabled, setRoutesEnabled] = useState(false);
+  const [bridgesEnabled, setBridgesEnabled] = useState(false);
+  const [fullStateEnabled, setFullStateEnabled] = useState(false);
+
+  // common query options once enabled
+  const commonOptions = {
+    refetchOnWindowFocus: true,
+    staleTime: 1000 * 10, // 10s
+  };
+
+  // Queries (disabled initially)
+  const interfacesQuery = useQuery<InterfaceInfo[]>({
+    queryKey: ["interfaces"],
+    queryFn: api.fetchInterfaces,
+    enabled: interfacesEnabled,
+    ...commonOptions,
+  });
+
+  const linksQuery = useQuery<InterfaceInfo[]>({
+    queryKey: ["links"],
+    queryFn: api.fetchLinks,
+    enabled: linksEnabled,
+    ...commonOptions,
+  });
+
+  const routesQuery = useQuery<RouteInfo[]>({
+    queryKey: ["routes"],
+    queryFn: api.fetchRoutes,
+    enabled: routesEnabled,
+    ...commonOptions,
+  });
+
+  const bridgesQuery = useQuery<BridgeInfo[]>({
+    queryKey: ["bridges"],
+    queryFn: api.fetchBridges,
+    enabled: bridgesEnabled,
+    ...commonOptions,
+  });
+
+  const fullStateQuery = useQuery<FullState>({
+    queryKey: ["full-state"],
+    queryFn: api.fetchFullState,
+    enabled: fullStateEnabled,
+    ...commonOptions,
+  });
+
+  // Imperative fetch helpers that also enable auto-refetch behavior
+  const fetchInterfaces = useCallback(async () => {
+    const res = await qc.fetchQuery<InterfaceInfo[]>({
+      queryKey: ["interfaces"],
+      queryFn: api.fetchInterfaces,
+      staleTime: 1000 * 10
+    });
+    setInterfacesEnabled(true);
+    return res;
+  }, [qc]);
+
+  const fetchLinks = useCallback(async () => {
+    const res = await qc.fetchQuery<InterfaceInfo[]>({
+      queryKey: ["links"],
+      queryFn: api.fetchLinks,
+      staleTime: 1000 * 10
+    });
+    setLinksEnabled(true);
+    return res;
+  }, [qc]);
+
+  const fetchRoutes = useCallback(async () => {
+    const res = await qc.fetchQuery<RouteInfo[]>({
+      queryKey: ["routes"],
+      queryFn: api.fetchRoutes,
+      staleTime: 1000 * 10
+    });
+    setRoutesEnabled(true);
+    return res;
+  }, [qc]);
+
+  const fetchBridges = useCallback(async () => {
+    const res = await qc.fetchQuery<BridgeInfo[]>({
+      queryKey: ["bridges"],
+      queryFn: api.fetchBridges,
+      staleTime: 1000 * 10
+    });
+    setBridgesEnabled(true);
+    return res;
+  }, [qc]);
+
+  const fetchFullState = useCallback(async () => {
+    const res = await qc.fetchQuery<FullState>({
+      queryKey: ["full-state"],
+      queryFn: api.fetchFullState,
+      staleTime: 1000 * 5
+    });
+    setFullStateEnabled(true);
+    return res;
+  }, [qc]);
+
+  // Local loading state for simple UI feedback
+  const [isCreating, setIsCreating] = useState(false);
+  const [isRemoving, setIsRemoving] = useState(false);
+
+  // Simple imperative functions that call the API and invalidate queries
+  async function createBridge(payload: BridgeCreateRequest) {
+    setIsCreating(true);
+    try {
+      await api.createBridge(payload);
+      // If the query is enabled it will refetch automatically after invalidation.
+      await qc.invalidateQueries({ queryKey: ["bridges"] });
+      await qc.invalidateQueries({ queryKey: ["full-state"] });
+      await qc.invalidateQueries({ queryKey: ["interfaces"] });
+    } catch (err) {
+      const message =
+        err instanceof Error ? err.message : typeof err === "string" ? err : "Create bridge failed";
+      throw new Error(message);
+    } finally {
+      setIsCreating(false);
+    }
+  }
+
+  async function removeBridge(payload: BridgeRemoveRequest) {
+    setIsRemoving(true);
+    try {
+      await api.removeBridge(payload);
+      await qc.invalidateQueries({ queryKey: ["bridges"] });
+      await qc.invalidateQueries({ queryKey: ["full-state"] });
+      await qc.invalidateQueries({ queryKey: ["interfaces"] });
+    } catch (err) {
+      const message =
+        err instanceof Error ? err.message : typeof err === "string" ? err : "Remove bridge failed";
+      throw new Error(message);
+    } finally {
+      setIsRemoving(false);
+    }
+  }
+
+  // Convenience: invalidate helpers
+  function refreshInterfaces() {
+    return qc.invalidateQueries({ queryKey: ["interfaces"] });
+  }
+
+  function refreshLinks() {
+    return qc.invalidateQueries({ queryKey: ["links"] });
+  }
+
+  function refreshRoutes() {
+    return qc.invalidateQueries({ queryKey: ["routes"] });
+  }
+
+  function refreshBridges() {
+    return qc.invalidateQueries({ queryKey: ["bridges"] });
+  }
+
+  function refreshFullState() {
+    return qc.invalidateQueries({ queryKey: ["full-state"] });
+  }
+
+  // Convenience: refresh all queries
+  function refreshAll() {
+    refreshInterfaces();
+    refreshLinks();
+    refreshRoutes();
+    refreshBridges();
+    refreshFullState();
+  }
+
+  return {
+    // queries
+    interfacesQuery,
+    linksQuery,
+    routesQuery,
+    bridgesQuery,
+    fullStateQuery,
+
+    // manual fetchers (fetch+enable auto-updates)
+    fetchInterfaces,
+    fetchLinks,
+    fetchRoutes,
+    fetchBridges,
+    fetchFullState,
+
+    // simple mutation functions (imperative)
+    createBridge,
+    removeBridge,
+
+    // local loading flags
+    isCreating,
+    isRemoving,
+
+    // invalidate helpers
+    refreshInterfaces,
+    refreshLinks,
+    refreshRoutes,
+    refreshBridges,
+    refreshFullState,
+    refreshAll,
+  };
+}

frontend/src/main.tsx

@@ -1,20 +1,20 @@
-import { ConfigProvider } from 'antd';
+import { QueryClientProvider } from '@tanstack/react-query';
+import { ReactQueryDevtools } from '@tanstack/react-query-devtools';
 import { StrictMode } from 'react';
 import { createRoot } from 'react-dom/client';
 import { BrowserRouter } from 'react-router-dom';
-import App from './App.js';
+import { queryClient } from './api/queryClient.js';
+import AppRouter from './appRouter.js';
 import './index.less';
 import './theme/theme.less';
 
-const rootElement = document.getElementById('root');
-if (rootElement) {
-  createRoot(rootElement).render(
+createRoot(document.getElementById('root')!).render(
   <StrictMode>
-      <ConfigProvider theme={{}}>
+    <QueryClientProvider client={queryClient}>
       <BrowserRouter>
-          <App />
+        <AppRouter />
       </BrowserRouter>
-      </ConfigProvider>
+      <ReactQueryDevtools initialIsOpen={false} />
+    </QueryClientProvider>
   </StrictMode>,
 );
-}

frontend/src/pages/Bridges.tsx

@@ -0,0 +1,234 @@
+// src/pages/BridgesManager.tsx
+import { DeleteOutlined, PlusOutlined, ReloadOutlined } from '@ant-design/icons';
+import { Button, Col, Form, Input, message, Modal, Popconfirm, Row, Select, Space, Table, Tag, Typography } from 'antd';
+import type { ColumnsType } from 'antd/es/table';
+import { useEffect, useMemo, useState } from 'react';
+import { useNetwork } from '../hooks/useNetwork';
+import type { BridgeInfo, InterfaceInfo } from '../types/network';
+
+const { Title, Paragraph } = Typography;
+
+export default function NetworkManager() {
+  const {
+    interfacesQuery,
+    bridgesQuery,
+    createBridge,
+    removeBridge,
+    fetchBridges,
+    fetchInterfaces,
+    refreshBridges,
+    refreshInterfaces,
+    isCreating,
+    isRemoving,
+  } = useNetwork();
+
+  const [bridgeModalVisible, setBridgeModalVisible] = useState(false);
+  const [bridgeForm] = Form.useForm();
+
+  // fetch on mount (explicit, since queries are disabled by default)
+  useEffect(() => {
+    fetchInterfaces().catch(() => {});
+    fetchBridges().catch(() => {});
+  }, []);
+
+  // Table data
+  const interfaces = interfacesQuery.data ?? [];
+  const bridges = bridgesQuery.data ?? [];
+
+  // build select options from interfaces list
+  const interfaceOptions = useMemo(
+    () =>
+      interfaces.map((it: InterfaceInfo) => ({
+        label: it.name,
+        value: it.name,
+      })),
+    [interfaces],
+  );
+
+  // Columns for interfaces table (read-only)
+  const interfaceColumns: ColumnsType<InterfaceInfo> = useMemo(
+    () => [
+      { title: 'IfIndex', dataIndex: 'ifindex', key: 'ifindex', width: 90 },
+      { title: 'Name', dataIndex: 'name', key: 'name' },
+      { title: 'State', dataIndex: 'state', key: 'state', render: (s) => <Tag>{s}</Tag> },
+      { title: 'MAC', dataIndex: 'mac', key: 'mac', render: (m) => m ?? '—' },
+      { title: 'MTU', dataIndex: 'mtu', key: 'mtu', width: 90 },
+      {
+        title: 'Addresses',
+        dataIndex: 'addresses',
+        key: 'addresses',
+        render: (addrs: any[]) =>
+          addrs?.length ? (
+            <Space direction="vertical">
+              {addrs.map((a) => (
+                <span key={`${a.address}/${a.prefixlen}`}>
+                  {a.address}/{a.prefixlen} ({a.family})
+                </span>
+              ))}
+            </Space>
+          ) : (
+            <span>—</span>
+          ),
+      },
+    ],
+    [],
+  );
+
+  // Columns for bridges table (with remove action)
+  const bridgeColumns: ColumnsType<BridgeInfo> = useMemo(
+    () => [
+      { title: 'IfIndex', dataIndex: 'ifindex', key: 'ifindex', width: 90 },
+      { title: 'Name', dataIndex: 'ifname', key: 'ifname' },
+      { title: 'State', dataIndex: 'state', key: 'state', render: (s) => s ?? '—' },
+      {
+        title: 'Members',
+        dataIndex: 'members',
+        key: 'members',
+        render: (members: any[]) => (members?.length ? members.map((m) => m.ifname).join(', ') : '—'),
+      },
+      {
+        title: 'Actions',
+        key: 'actions',
+        width: 140,
+        render: (_: any, record: BridgeInfo) => (
+          <Popconfirm
+            title={`Remove bridge ${record.ifname}?`}
+            onConfirm={() => handleRemoveBridge(record.ifname)}
+            okText="Remove"
+            cancelText="Cancel"
+          >
+            <Button danger icon={<DeleteOutlined />} loading={isRemoving} size="small">
+              Remove
+            </Button>
+          </Popconfirm>
+        ),
+      },
+    ],
+    [isRemoving],
+  );
+
+  async function handleCreateBridge(values: { name: string; interfaces?: string[] }) {
+    const ifaceList = values.interfaces ?? [];
+
+    try {
+      await createBridge({ name: values.name, interfaces: ifaceList });
+      message.success(`Bridge ${values.name} created`);
+      setBridgeModalVisible(false);
+      bridgeForm.resetFields();
+    } catch (err) {
+      console.error(err);
+      message.error((err as Error)?.message ?? 'Failed to create bridge');
+    }
+  }
+
+  async function handleRemoveBridge(name: string) {
+    try {
+      await removeBridge({ name });
+      message.success(`Bridge ${name} removed`);
+    } catch (err) {
+      console.error(err);
+      message.error((err as Error)?.message ?? 'Failed to remove bridge');
+    }
+  }
+
+  return (
+    <div style={{ padding: 16 }}>
+      <Row justify="space-between" align="middle" style={{ marginBottom: 12 }}>
+        <Col>
+          <Title level={4}>Bridges & Interfaces</Title>
+          <Paragraph type="secondary">View system interfaces and manage network bridges.</Paragraph>
+        </Col>
+        <Col>
+          <Space>
+            <Button
+              icon={<PlusOutlined />}
+              type="primary"
+              onClick={() => {
+                // ensure up-to-date interface list when opening modal
+                refreshInterfaces();
+                setBridgeModalVisible(true);
+              }}
+            >
+              Create bridge
+            </Button>
+            <Button
+              icon={<ReloadOutlined />}
+              onClick={() => {
+                refreshBridges();
+                refreshInterfaces();
+                message.success('Refreshing…');
+              }}
+            >
+              Refresh
+            </Button>
+          </Space>
+        </Col>
+      </Row>
+
+      <Row gutter={16}>
+        <Col span={14}>
+          <div style={{ background: '#fff', padding: 12, borderRadius: 6, minHeight: 220 }}>
+            <Title level={5} style={{ marginBottom: 12 }}>
+              Interfaces ({interfaces.length})
+            </Title>
+            <Table
+              rowKey={(r: InterfaceInfo) => r.ifindex}
+              dataSource={interfaces}
+              columns={interfaceColumns}
+              pagination={{ pageSize: 8 }}
+              size="small"
+              loading={interfacesQuery.isFetching || interfacesQuery.isLoading}
+            />
+          </div>
+        </Col>
+
+        <Col span={10}>
+          <div style={{ background: '#fff', padding: 12, borderRadius: 6, minHeight: 220 }}>
+            <Title level={5} style={{ marginBottom: 12 }}>
+              Bridges ({bridges.length})
+            </Title>
+            <Table
+              rowKey={(r: BridgeInfo) => String(r.ifindex)}
+              dataSource={bridges}
+              columns={bridgeColumns}
+              pagination={{ pageSize: 6 }}
+              size="small"
+              loading={bridgesQuery.isFetching || bridgesQuery.isLoading}
+            />
+          </div>
+        </Col>
+      </Row>
+
+      {/* Create Bridge Modal */}
+      <Modal
+        title="Create Bridge"
+        open={bridgeModalVisible}
+        onCancel={() => {
+          setBridgeModalVisible(false);
+          bridgeForm.resetFields();
+        }}
+        okButtonProps={{ loading: isCreating }}
+        onOk={() => bridgeForm.submit()}
+      >
+        <Form form={bridgeForm} layout="vertical" onFinish={handleCreateBridge}>
+          <Form.Item name="name" label="Bridge name" rules={[{ required: true }]}>
+            <Input placeholder="e.g. br0" />
+          </Form.Item>
+
+          {/* Select field populated from interfaces endpoint */}
+          <Form.Item name="interfaces" label="Interfaces (select one or more)">
+            <Select
+              mode="multiple"
+              placeholder={interfaces.length ? 'Select interfaces...' : 'No interfaces available'}
+              options={interfaceOptions}
+              showSearch
+              allowClear
+              loading={interfacesQuery.isFetching || interfacesQuery.isLoading}
+              disabled={interfacesQuery.isFetching || interfacesQuery.isLoading || interfaceOptions.length === 0}
+            />
+          </Form.Item>
+        </Form>
+      </Modal>
+    </div>
+  );
+}

frontend/src/pages/Home.tsx

@@ -1,10 +1,31 @@
-import { Button, Typography } from 'antd';
+import { useEffect } from 'react';
+import { fetchFullState } from '../api/apiClient';
+import { useNetwork } from '../hooks/useNetwork';
 
 export default function Home() {
+  const { fullStateQuery } = useNetwork();
+  const { data, isLoading, isError, error } = fullStateQuery;
+
+  if (isLoading) return <div>Loading full state…</div>;
+  if (isError) return <div>Error: {(error as Error)?.message}</div>;
+
+  useEffect(() => {
+    fetchFullState().catch(() => {});
+  }, []);
+
   return (
-    <>
-      <Typography>🚀 Hello MUI + React</Typography>
-      <Button color="primary">Klick mich!</Button>
-    </>
+    <div>
+      <h3>Full State</h3>
+      <div>
+        <strong>Interfaces:</strong> {data?.interfaces.length ?? 0}
+      </div>
+      <div>
+        <strong>Routes:</strong> {data?.routes.length ?? 0}
+      </div>
+      <div>
+        <strong>Bridges:</strong> {data?.bridges.length ?? 0}
+      </div>
+      <pre style={{ whiteSpace: 'pre-wrap' }}>{JSON.stringify(data, null, 2)}</pre>
+    </div>
   );
 }

frontend/src/routes.ts

@@ -0,0 +1,5 @@
+export const PATHS = {
+  ROOT: '/',
+  HOME: '/home',
+  NETWORK: '/network',
+};

frontend/src/theme/layout.less

@@ -1,52 +1,98 @@
 @import "theme.less";
 
-html, body, #root {
+/* root */
+html,
+body,
+#root {
   height: 100%;
   min-width: 100%;
   margin: 0;
   padding: 0;
 }
 
+/* base page colors */
 body {
   background-color: @body-background;
   color: @text-color;
+  -webkit-font-smoothing: antialiased;
 }
 
-.ant-layout {
+/* Top-level Ant layout becomes a row flex container:
+   Sidebar on the left, app-main on the right. */
+.ant-layout.app-root {
+  display: flex;
+  flex-direction: row;
+  /* sidebar + main column */
+  min-height: 100vh;
+  /* fill viewport */
+  height: 100vh;
   background: @body-background;
+  padding: 0;
+  overflow: hidden;
+  /* prevent body scrolling — content handles scrolling */
 }
 
+/* Sidebar: keep standard sider width, full height of the layout, scroll internally if needed */
+.ant-layout-sider {
+  padding-top: 64px;
+  flex: 0 0 auto;
+  height: 100%;
+  min-height: 0;
+  /* allow internal overflow to work */
+  background: @layout-background;
+  overflow: auto;
+  /* if sidebar items exceed height, they scroll inside sider */
+  position: relative;
+  li span {
+    font-size: @font-size-slider;
+  }
+}
+
+/* Inner layout (app-main) is a column flex that occupies the remaining width */
+.ant-layout.app-main {
+  display: flex;
+  flex-direction: column;
+  flex: 1 1 auto;
+  /* grow to fill remaining area */
+  min-height: 0;
+  /* critical so children can scroll */
+  background: transparent;
+}
+
+/* Header: not part of content scroll */
 .ant-layout-header {
+  flex: 0 0 64px;
+  height: 64px;
+  line-height: 64px;
   background: @layout-header-background;
   color: @text-color;
   font-size: @font-size-header;
-  position: sticky;
-  top: 0px;
-  left: 0px;
-  overflow: auto;
+  position: relative;
+  overflow: hidden;
 }
 
+/* Content area becomes the only scrollable pane */
 .ant-layout-content {
-  background: @component-background;
-  min-height: calc(100vh - 64px - 70px); // header + footer height
-}
-
-.ant-layout-sider{
-  li span{  font-size: @font-size-slider;}
-  height: calc(100vh - 64px - 70px);
-  background: @component-background;
-  top: 64px;
+  flex: 1 1 auto;
+  min-height: 0;
   overflow: auto;
-  position: sticky;
+  /* this makes the main content scrollable */
+  background: @component-background;
+  padding: 24px;
 }
 
+/* Footer: fixed at bottom of app-main */
 .ant-layout-footer {
-  background: @component-background;
+  flex: 0 0 10px;
+  height: 10px;
+  line-height: 10px;
+  background: @layout-background;
   color: @text-color-secondary;
   text-align: center;
-  width: auto;
+  border-top: 1px solid fade(@text-color-secondary, 90%);
 }
 
+/* Menu visuals */
 .ant-menu-dark {
   background: @menu-dark-bg;
   color: @text-color;

frontend/src/theme/theme.less

@@ -1,10 +1,11 @@
 // Dark theme colors
 @primary-color: #1DA57A;
 @text-color: #ffffff;
-@text-color-secondary: #bfbfbf;
+@text-color-secondary: #c9c9c9;
 @heading-color: #ffffff;
 @body-background: #141414;
-@component-background: #1f1f1f;
+@component-background: #dadada;
+@layout-background: #1f1f1f;
 @border-color-base: #434343;
 @border-radius-base: 8px;
 @font-size-base: 14px;

frontend/src/types/network.ts

@@ -0,0 +1,58 @@
+export interface InterfaceAddress {
+  family: "ipv4" | "ipv6";
+  address: string;
+  prefixlen: number;
+}
+
+export interface InterfaceInfo {
+  ifindex: number;
+  name: string;
+  state: string;
+  mac?: string | null;
+  mtu: number;
+  flags: string[];
+  addresses: InterfaceAddress[];
+}
+
+export interface RouteInfo {
+  dst?: string | null;
+  gateway?: string | null;
+  prefsrc?: string | null;
+  oif?: number | null;
+  ifname?: string | null;
+  table: number;
+  proto?: number | null;
+  scope?: number | null;
+  type?: number | null;
+}
+
+export interface BridgeInterfaceInfo {
+  ifindex: number;
+  ifname: string;
+  state?: string | null;
+  mtu?: number | null;
+}
+
+export interface BridgeInfo {
+  ifindex: number;
+  ifname: string;
+  state?: string | null;
+  mtu?: number | null;
+  stp_state?: number | null;
+  members: BridgeInterfaceInfo[];
+}
+
+export interface BridgeCreateRequest {
+  name: string;
+  interfaces: string[];
+}
+export interface BridgeRemoveRequest {
+  name: string;
+}
+
+// full-state response shape
+export interface FullState {
+  interfaces: InterfaceInfo[];
+  routes: RouteInfo[];
+  bridges: BridgeInfo[];
+}