fix(test): restore port-resolution assertions in nimStatusByName tests

[ericksoa]

Bug

The TS migration in #1271 simplified the nimStatusByName test assertions, dropping the command-verification checks that validate port resolution branching:

• "falls back to 8000" no longer verifies localhost:8000 was actually used
• "uses published docker port" no longer verifies localhost:9000 was used
• "does not run health check when container is not running" no longer verifies docker port and health check commands were skipped

Without these, the tests just check healthy: true/false without confirming the port resolution logic picked the right port.

Fix

Restore the commands.some(cmd => cmd.includes(...)) assertions that were present in the original JS tests.

Found by

Review of #1271.