feat(monitoring): dispatch monitoring tasks to desktop via AMQP outbox

Replace SSE /desktop/events with priority AMQP dispatch for monitoring
runs, and add phase1/phase2 infrastructure so desktop workers can lease,
resume, report, skip, and cancel monitoring tasks over the existing
dispatch WebSocket.

- Add monitoring collect outbox worker and phase2 desktop task fields
- Add /desktop/monitoring/tasks/{lease,resume,result,skip,cancel} routes
- Introduce execution-devtools and network-observer on desktop runtime
- Refactor runtime-controller, LoginView, and doubao adapter for the new flow
- Add channelName column to tracking views

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

server/internal/scheduler/monitoring_result_recovery_worker.go

@@ -167,7 +167,14 @@ func loadMonitoringRecoverableTaskResults(ctx context.Context, tx pgx.Tx, limit
 			request_payload_json
 		FROM monitoring_collect_tasks
 		WHERE collector_type = $1
-		  AND status = 'received'
+		  AND (
+			status = 'received'
+			OR (
+				COALESCE(execution_owner, 'legacy') = 'desktop_tasks'
+				AND status = 'pending'
+				AND callback_received_at IS NOT NULL
+			)
+		  )
 		  AND callback_received_at IS NOT NULL
 		  AND request_payload_json IS NOT NULL
 		  AND jsonb_typeof(request_payload_json) = 'object'