fix: configure Vercel preset and fix marketplace config loading

[amondnet]

Summary

• Configure Vercel preset in nuxt.config.ts for proper serverless deployment
• Fix marketplace API failing with ENOENT error in production
• Move marketplace-sources.json to server directory and import directly instead of using file system APIs
• Clean up turbo.json formatting

Problem

The marketplace API was failing in Vercel's serverless environment with:

Error: ENOENT: no such file or directory, open '/var/task/marketplace-sources.json'

This occurred because:

1. No Vercel preset was configured, causing incorrect build output
2. The API was trying to read marketplace-sources.json from the file system using process.cwd(), which differs between dev and production environments

Solution

1. Added Vercel preset to ensure proper serverless build configuration
2. Moved config file from public/ to server/ directory
3. Changed from fs.readFile to direct import - this bundles the config at build time, making it available in any environment
4. Removed trailing comma in turbo.json for consistency

Test Plan

• Build completes successfully with Vercel preset
• Config file is bundled in server output
• No file system dependencies in serverless functions

[vercel]

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Project	Deployment	Preview	Comments	Updated (UTC)
claude-code-plugins	Ready	Preview	Comment	Oct 15, 2025 8:26pm