backend integration started

package.json

@@ -8,7 +8,10 @@
     "build": "tsc --noEmit && vite build",
     "preview": "vite preview --port 3100",
     "typecheck": "tsc --noEmit",
-    "test": "tsx --test \"src/**/*.test.ts\""
+    "test": "tsx --test \"src/**/*.test.ts\"",
+    "contract": "node scripts/contract.mjs",
+    "db": "node scripts/db.mjs",
+    "verify:live": "test ! -d src/demo && test $(grep -rl 'await fetch(' src | wc -l) -eq 1 && ! grep -rlq 'src/demo' src/ && echo \"clean: no fixture layer, one fetch, every screen reads the API\""
   },
   "dependencies": {
     "@astryxdesign/core": "^0.4.5",
@@ -29,6 +32,7 @@
     "@types/react-dom": "^19.2.4",
     "@vitejs/plugin-react": "^5.0.4",
     "tailwindcss": "^4.3.3",
+    "tsx": "^4.20.3",
     "typescript": "^7.0.2",
     "vite": "^8.2.2"
   }