Background

`observal_cli/cmd_prompt.py` (prompt registry CLI) has zero direct unit tests.

What needs to be done

Create `tests/test_cmd_prompt.py` covering happy paths for: list, get, push (with stubbed HTTP), and validation of prompt metadata (name, scope, schema constraints).

Files to touch

• `tests/test_cmd_prompt.py` (new)

Reference implementation

• `tests/test_pull_and_agent_cli.py` for HTTP-stubbed CLI tests.

Acceptance criteria

• At least 5 test functions.
• No real network calls.
• `make test` passes.