feat(frontend): add API client, layout, and routing

- Create Axios-based API client with sources, jobs, and dashboard endpoints
- Add responsive Layout component with navigation sidebar
- Set up React Router with Dashboard, Backups, and Settings routes
- Configure TanStack Query provider with default options
- Use lucide-react for navigation icons

frontend/node_modules/tailwindcss/lib/public/resolve-config.js

@@ -0,0 +1,24 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+Object.defineProperty(exports, "default", {
+    enumerable: true,
+    get: function() {
+        return resolveConfig;
+    }
+});
+const _resolveConfig = /*#__PURE__*/ _interop_require_default(require("../util/resolveConfig"));
+const _getAllConfigs = /*#__PURE__*/ _interop_require_default(require("../util/getAllConfigs"));
+function _interop_require_default(obj) {
+    return obj && obj.__esModule ? obj : {
+        default: obj
+    };
+}
+function resolveConfig(...configs) {
+    let [, ...defaultConfigs] = (0, _getAllConfigs.default)(configs[0]);
+    return (0, _resolveConfig.default)([
+        ...configs,
+        ...defaultConfigs
+    ]);
+}