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/reusify/package.json

@@ -0,0 +1,50 @@
+{
+  "name": "reusify",
+  "version": "1.1.0",
+  "description": "Reuse objects and functions with style",
+  "main": "reusify.js",
+  "types": "reusify.d.ts",
+  "scripts": {
+    "lint": "eslint",
+    "test": "tape test.js",
+    "test:coverage": "c8 --100 tape test.js",
+    "test:typescript": "tsc"
+  },
+  "pre-commit": [
+    "lint",
+    "test",
+    "test:typescript"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/mcollina/reusify.git"
+  },
+  "keywords": [
+    "reuse",
+    "object",
+    "performance",
+    "function",
+    "fast"
+  ],
+  "author": "Matteo Collina <hello@matteocollina.com>",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/mcollina/reusify/issues"
+  },
+  "homepage": "https://github.com/mcollina/reusify#readme",
+  "engines": {
+    "node": ">=0.10.0",
+    "iojs": ">=1.0.0"
+  },
+  "devDependencies": {
+    "@types/node": "^22.9.0",
+    "eslint": "^9.13.0",
+    "neostandard": "^0.12.0",
+    "pre-commit": "^1.2.2",
+    "tape": "^5.0.0",
+    "c8": "^10.1.2",
+    "typescript": "^5.2.2"
+  },
+  "dependencies": {
+  }
+}