fix(cli): wire top-level status command

[ox01024]

Summary

• add the documented top-level status CLI route
• keep status checks read-only by using the managed-browser probe instead of discovery that may launch/write state

Testing

• pnpm test

Closes #68

[yan5xu]

LGTM — clean fix, correctly wires the status command and eliminates the side-effect in isDaemonRunning().

One thing I noticed: case "daemon": (line ~407) falls through to case "close": with no break. This means bb-browser daemon silently runs the close command — likely a pre-existing bug. Not blocking this PR, but worth a follow-up issue.

Merging.