feat: implement counter management application with drag-and-drop functionality

- Add main application component (App.tsx) to manage counters
- Create Counter component for individual counter display and editing
- Implement CreateCounter component for adding new counters
- Add API utility for handling server requests
- Set up Vite configuration with proxy for API calls
- Introduce TypeScript configuration for app and node environments
- Style application with global CSS for consistent design

backend/prisma/migrations/20251112222542_init/migration.sql

@@ -0,0 +1,10 @@
+-- CreateTable
+CREATE TABLE "Counter" (
+    "id" INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+    "name" TEXT,
+    "value" INTEGER NOT NULL DEFAULT 0,
+    "imageUrl" TEXT,
+    "position" INTEGER NOT NULL DEFAULT 0,
+    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" DATETIME NOT NULL
+);

backend/prisma/migrations/migration_lock.toml

@@ -0,0 +1,3 @@
+# Please do not edit this file manually
+# It should be added in your version-control system (e.g., Git)
+provider = "sqlite"