Remove unused `conf/users.yaml` and update "Adding users" docs to reflect Thunder-based flow

[Aravinda-HWK]

Summary

conf/users.yaml is a leftover config template that is no longer read by any script in this repository. The README still instructs users to edit it and run bash scripts/user/add_user.sh, but that script no longer exists, so anyone following the README hits a dead end. Users are now added through Thunder's API/UI instead.

Why it's safe to remove

A full search of the repo confirms users.yaml has no live consumers:

• No shell script, Python script, or Go code reads it.
• No docker-compose.yaml mounts it as a volume.
• The only references are the file itself and a single stale mention in README.md (line 114).
• The companion script scripts/user/add_user.sh was already removed in an earlier cleanup.

The actual user-provisioning flow uses Thunder's /users API endpoint (see scripts/user/create_test_users.sh for an example). Domain configuration comes from conf/silver.yaml.

Tasks

• Delete conf/users.yaml.
• Update the "Adding users" section in README.md (around lines 112–120) to remove the reference to users.yaml and add_user.sh, and replace it with instructions for adding users via Thunder (either through the Thunder console UI at https://<host>:8090, or by calling the Thunder /users API).
• Verify no other docs/scripts reference users.yaml by running grep -rn "users.yaml" . after the change.

Acceptance criteria

• conf/users.yaml no longer exists in the repo.
• grep -rn "users.yaml" . returns no results.
• The "Adding users" section in the README describes the real, working flow and does not reference any non-existent script.

Good first issue notes

This is a documentation + cleanup task — no application code changes are needed. A great way to learn the project's user-provisioning model. If you're new, take a quick look at scripts/user/create_test_users.sh to see how Thunder is called.

[prdai]

hi, could i be assigned to this issue pl thanks! :))

[Aravinda-HWK]

hi, could i be assigned to this issue pl thanks! :))

Sure, you can start work on this issue.

[prdai]

hi @Aravinda-HWK i put up the pr #339 let me know if there is any other changes to be done, thanks!