feat(prisma): add db:resetadmin and db:setup scripts for database management

prisma/migrations/20260106071035/migration.sql

@@ -0,0 +1,3 @@
+-- AlterTable
+ALTER TABLE "users" ALTER COLUMN "dailyGenerationLimit" SET DEFAULT 3,
+ALTER COLUMN "generationCreditsRemaining" SET DEFAULT 3;

prisma/reset-admin.ts

@@ -0,0 +1,40 @@
+import { PrismaClient } from "@prisma/client";
+import bcrypt from "bcryptjs";
+
+const prisma = new PrismaClient();
+
+async function main() {
+  console.log("🔐 Resetting admin user...");
+
+  const password = await bcrypt.hash("password123", 12);
+
+  const admin = await prisma.user.upsert({
+    where: { email: "admin@prompts.chat" },
+    update: {
+      password: password,
+      role: "ADMIN",
+    },
+    create: {
+      email: "admin@prompts.chat",
+      username: "admin",
+      name: "Admin User",
+      password: password,
+      role: "ADMIN",
+      locale: "en",
+    },
+  });
+
+  console.log("✅ Admin user reset successfully!");
+  console.log("\n📋 Credentials:");
+  console.log("   Email:    admin@prompts.chat");
+  console.log("   Password: password123");
+}
+
+main()
+  .catch((e) => {
+    console.error("❌ Failed to reset admin:", e);
+    process.exit(1);
+  })
+  .finally(async () => {
+    await prisma.$disconnect();
+  });