Assign members to Cloudron 'members' group via PUT /users/:id/groups (verified endpoint)

README.md

@@ -42,6 +42,7 @@ LibreChat ──→ Member Portal ──→ LiteLLM ──→ backend
 |----------|---------|
 | `CLOUDRON_API` | Cloudron API origin (auto-set by Cloudron) |
 | `CLOUDRON_TOKEN` | Cloudron API token (Read+Write) |
+| `MEMBERS_GROUP_ID` | Cloudron group ID for members (grants chat access) |
 | `LITELLM_BASE` | LiteLLM gateway URL |
 | `LITELLM_MASTER_KEY` | LiteLLM master key |
 | `OPENCOLLECTIVE_WEBHOOK_SECRET` | Optional webhook signature secret |