bug: suspending a rig inside a rig folder gives "missing rig name"

[csells]

Before you continue

• I searched existing issues and did not find a duplicate.
• I read the relevant docs and contributor guidance.

Gas City version

main@1fa5ec18

Environment

macos

Reproduction

~/my-project (master)
$ gc rig suspend

Expected behavior

Rig suspended (/Users/csells/my-project)

Actual behavior

gc rig suspend: missing rig name

Logs, screenshots, or traces

Additional context

No response