Remove autogenerated files from version control

[coderabbitai]

Problem

Compiled JavaScript and TypeScript declaration files are currently tracked in version control:

• backend/lib/prisma.d.ts
• backend/lib/prisma.d.ts.map
• backend/lib/prisma.js
• backend/lib/prisma.js.map

These are build artifacts generated from backend/lib/prisma.ts and should not be committed.

Action Items

1. Add these patterns to .gitignore:
   • backend/lib/*.js
   • backend/lib/*.d.ts
   • backend/lib/*.map
2. Remove tracked files: git rm --cached backend/lib/prisma.{d.ts,d.ts.map,js,js.map}
3. Ensure CI/CD builds these files from source

Related

• PR Idempotent pr analysis built #28
• Comment: Idempotent pr analysis built #28 (comment)

Requested by: @yb175