Urgent Railway.app Backend Overhaul

I have a peptide-focused site running on Railway.app and I need the entire backend tightened up within the next 24 hours. Every line of code must deploy cleanly and the production instance has to stay online while we work.

Here is what I expect:

• Re-wire and stabilise the Railway backend so database management, API integration and all server-side scripting run flawlessly after redeploy.
• Verify that every endpoint is returning the correct data and that queries are fully optimised; feel free to use PostgreSQL tuning or connection-pool tweaks if that helps performance.
• Final smoke-test the build pipeline right on Railway to be sure no hidden env-var or build-step issues creep in.

On the WordPress side, the affiliate panel is already installed but the tracking data does not always arrive correctly. I need you to trace the flow, fix the hooks or REST calls and prove that commissions, clicks and conversions all land in the database without discrepancies. Speed improvements and UI polish are welcome but data accuracy is non-negotiable.

Please be ready to start immediately, share your GitHub or Bitbucket so we can collaborate, and keep updates frequent—this is a true 24-hour turnaround. Once done I’ll run live tests on the peptide store; if everything passes, we’re good to sign off.