Initialize a repository

I need a fresh repository for the new payment-service project. Initialize a repo in the current folder, create an initial commit that includes README.md and .gitignore, and set the main branch name to main so our CI picks it up. Confirm the commit hash and show the branch name after initialization.

Before I initialize this repo for payment-service, make it easy for teammates to start: put the purpose and quick start in README.md, add a .gitignore that excludes node_modules and build outputs, and ensure the branch will be called main. Flag anything that would confuse a reviewer or break CI on first push.

I just created the project folder for payment-service and I'm unsure about the next step. I want a clean initial commit and the branch named main so CI works. Tell me the likely pitfalls I might hit on initialization (wrong branch name, missing .gitignore, empty commit), and the exact minimal sequence of commands and checks to follow so the repo is ready for the first push.

Across multiple projects, we lose time fixing initial commits, correcting branch names from master to main, and adding .gitignore afterwards. What habit should I change in our repo creation checklist so every new repo starts clean with the right branch name, sensible ignores, and a purposeful README? Suggest a short template and a simple enforcement step.