feat: добавить базовые сервисы image-platform

- добавлены backend, admin, gateway и worker skeleton
- добавлены Drizzle schema, database package и initial migration
- добавлены shared packages для RabbitMQ topology и S3 helpers
- обновлены dev-инфраструктура, env example, scripts и dependencies
- обновлена документация под versioned image URLs и read-through flow

apps/admin/package.json

@@ -0,0 +1,24 @@
+{
+  "name": "@image-platform/admin",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "build": "tsc -b && vite build",
+    "dev": "vite --host 0.0.0.0 --port 5173",
+    "preview": "vite preview --host 0.0.0.0 --port 5173",
+    "typecheck": "tsc -b"
+  },
+  "dependencies": {
+    "react": "^19.2.5",
+    "react-dom": "^19.2.5"
+  },
+  "devDependencies": {
+    "@types/node": "^24.12.2",
+    "@types/react": "^19.2.14",
+    "@types/react-dom": "^19.2.3",
+    "@vitejs/plugin-react": "^6.0.1",
+    "typescript": "^5.9.3",
+    "vite": "^8.0.10"
+  }
+}