v6.2.0: Operator TUI

[flyingrobots]

Outcome

The TUI becomes a coherent operator cockpit for status, navigation, diagnostics, store flow, and detail inspection, with lower-mode evidence where practical.

Scope

• Reconcile archived TUI planning material against shipped behavior.
• Prioritize operator workflows over decorative component work.
• Design keyboard, focus, and lower-mode behavior before implementation.

Required Proof

• Design cycle before runtime work.
• TUI behavior tests or deterministic witnesses for user-visible changes.