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/@vitest/runner/dist/utils.d.ts

@@ -0,0 +1,25 @@
+import { S as Suite, T as Task, a as Test, C as Custom } from './tasks-K5XERDtv.js';
+export { b as ChainableFunction, c as createChainable } from './tasks-K5XERDtv.js';
+import { Arrayable } from '@vitest/utils';
+
+/**
+ * If any tasks been marked as `only`, mark all other tasks as `skip`.
+ */
+declare function interpretTaskModes(suite: Suite, namePattern?: string | RegExp, onlyMode?: boolean, parentIsOnly?: boolean, allowOnly?: boolean): void;
+declare function someTasksAreOnly(suite: Suite): boolean;
+declare function generateHash(str: string): string;
+declare function calculateSuiteHash(parent: Suite): void;
+
+/**
+ * Partition in tasks groups by consecutive concurrent
+ */
+declare function partitionSuiteChildren(suite: Suite): Task[][];
+
+declare function getTests(suite: Arrayable<Task>): (Test | Custom)[];
+declare function getTasks(tasks?: Arrayable<Task>): Task[];
+declare function getSuites(suite: Arrayable<Task>): Suite[];
+declare function hasTests(suite: Arrayable<Suite>): boolean;
+declare function hasFailed(suite: Arrayable<Task>): boolean;
+declare function getNames(task: Task): string[];
+
+export { calculateSuiteHash, generateHash, getNames, getSuites, getTasks, getTests, hasFailed, hasTests, interpretTaskModes, partitionSuiteChildren, someTasksAreOnly };