fix(deploy): commit Convex generated files for Railway builds

[leoisadev1]

Summary

CRITICAL FIX - Production Railway builds have been failing since Jan 6.

Problem

The web app imports from @server/convex/_generated/* but these files were gitignored. Railway builds failed with:

Could not load /app/apps/server//convex/_generated/api
ENOENT: no such file or directory

Solution

• Remove convex/_generated/ from server's .gitignore
• Commit the generated TypeScript type definitions
• Revert railway.toml to simple build command (codegen not needed)

Notes

• The generated files are schema-based type definitions
• They should be regenerated when schema changes (via convex dev or convex deploy)
• This is a common pattern for Convex projects that need types available at build time

[github-actions]

🚀 Preview Deployment Ready

Environment	URL
Frontend	https://web-openchat-pr-492.up.railway.app
Convex Dashboard	Dashboard

Convex Preview Backend

• Cloud URL: https://wooden-opossum-196.convex.cloud
• Site URL: https://wooden-opossum-196.convex.site

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