Problem

Follow-up to Dart MCP review of feature/ui-parity-and-status-bar (69ee818 / UI-04).

QueryaStatusBar is mounted in main_screen.dart, but only receives:

• activeConnection
• isReadOnly
• isSidebarVisible / onToggleSidebar
• onOpenPreferences

These props exist on the widget but are never passed from MainScreen:

• isBusy
• statusMessage
• rowCount / columnCount
• lastQueryDuration

So the right-side metrics and busy spinner stay empty in the running app. UI-04 acceptance (“updates on query execution / background work”) is not met.

Proposal

1. Lift last-query duration, active grid row/col counts, and busy/status text into MainScreenWorkspaceState (or a small StatusBarModel listenables).
2. Update sources on SQL result completion, table browse, schema load, and connection switch.
3. Pass values into QueryaStatusBar from main_screen.dart.
4. Widget/integration tests: after a stubbed query result, status bar shows duration + row count.

Files

• lib/features/main_screen/querya_status_bar.dart
• lib/features/main_screen/main_screen.dart
• lib/features/main_screen/main_screen_workspace_state.dart
• Results / workspace panels that finish queries

Acceptance

• Executing a query updates lastQueryDuration in the status bar
• Active result grid selection/result size updates rowCount / columnCount
• Schema load / long query sets isBusy (spinner) and clears when idle
• Connection switch clears stale metrics
• Tests cover at least duration + row count path

Related

• Spec: docs/ui-parity-and-command-palette-issues.md § UI-04
• Review canvas: Dart MCP UI parity review