Guided setup edits the existing profile instead of starting fresh

When re-configuring, the flow now reflects the current selection:

• the "what kind of review?" picker pre-selects and marks the current default profile with "(current)";
• the crew is seeded from the existing profile's workers (agent · model) rather than always defaulting to all agents;
• the master step pre-selects the existing master.

Threaded the loaded EntireSettings into RunReviewGuidedSetup so it can look up the profile being configured.