Goal: Трехпанельный интерфейс Windows Client

Use Krypton Execution to execute docs/goals/windows-client-three-panel-ui/PLAN.md.

Core rules:

Treat PLAN.md as the source plan.
Preserve intent, ownership, contract, cutover, evidence, and kill criteria.
Summary panel must remain read-only: no apply, install, start, stop, delete, input, subscription, or route mutations there.
Keep Rust/Tauri storage and commands as the source of truth; React may hold only UI state and derived display models.
Do not add a new dominant path without deleting, redirecting, demoting, or shimming the displaced monolithic screen path.
Capture acceptance evidence from the target perspective and record it in EVIDENCE.md.
Say implemented but unproven if target-perspective or Windows service evidence cannot be captured.