Add a CODEOWNERS file

[RaymondAbiola]

Summary

Review requests are not routed automatically, so every pull request waits to be noticed. Encoding the maintainer as owner makes the routing automatic and the expectation visible.

Acceptance criteria

• A CODEOWNERS file assigns ownership for the repository.
• The named owner has access to the repository.
• Review is requested automatically on new pull requests.

Getting started

Fork this repository, clone your fork, and add this repo as upstream:

git clone https://github.com/<your-username>/tricklepay-frontend.git
cd tricklepay-frontend
git remote add upstream https://github.com/TricklePay/tricklepay-frontend.git

Create a branch for this issue:

git checkout -b chore/issue-172

Suggested commit message:

chore: add a CODEOWNERS file

Run npm run lint, npm run typecheck, npm test, and npm run build before opening a pull request and linking this issue.