Improve script downloader and auto-sync services

Added detailed JSDoc comments and type annotations to ScriptDownloaderService for better maintainability and clarity. Refactored initialization logic to always set scriptsDirectory and repoUrl. Enhanced autoSyncService to specify cron job timezone and options. Updated PrismaClient import path for compatibility with generated client structure.

prisma.config.ts

@@ -1,6 +1,7 @@
 import 'dotenv/config'
 import { defineConfig } from 'prisma/config'
 
+// @ts-ignore - Prisma 7 config types are incomplete
 export default defineConfig({
   schema: 'prisma/schema.prisma',
   studio: {