1.0.1: check both tea-cli and tea for every tea command, with a test for each case

README.md

@@ -27,7 +27,8 @@ Clone and push use a bundled git **credential helper** (`credential-helper.mjs`)
 ## Requirements
 
 - [`gh`](https://cli.github.com/) for GitHub accounts (optional).
-- [`tea`](https://gitea.com/gitea/tea) (binary named `tea-cli` or `tea`) for Gitea/Forgejo accounts (optional).
+- [`tea`](https://gitea.com/gitea/tea) for Gitea/Forgejo accounts (optional). Both binary names are checked, `tea-cli`
+  first, then `tea`; whichever runs is used for logins, logout and the status line in settings.
 - `git` and Node.js (already required by DSH).
 
 At least one of `gh` / `tea` must be installed and logged in for the account features to do anything.