refactor: migrate database layer to Prisma ORM

prisma.config.ts

@@ -0,0 +1,15 @@
+import "dotenv/config";
+import { defineConfig } from "prisma/config";
+import path from "path";
+
+export default defineConfig({
+  schema: "prisma/schema.prisma",
+  migrations: {
+    path: "prisma/migrations",
+  },
+  datasource: {
+    url:
+      process.env["DATABASE_URL"] ||
+      "file:" + path.join(process.cwd(), "data/database.sqlite"),
+  },
+});