refactor(monitoring): consolidate workers and extract to scheduler process

Remove standalone lease-recovery, received-inspection, and result-recovery
workers from tenant-api (now handled by scheduler process). Add configurable
concurrency to ingest and projection-rebuild workers via MonitoringWorkers
runtime config. Extract shared runtime types for worker configuration.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

server/internal/tenant/app/monitoring_worker_runtime.go

@@ -0,0 +1,44 @@
+package app
+
+import (
+	"go.uber.org/zap"
+
+	"github.com/geo-platform/tenant-api/internal/shared/response"
+)
+
+func normalizeMonitoringWorkerError(err error) error {
+	if err == nil {
+		return nil
+	}
+	if appErr, ok := err.(*response.AppError); ok {
+		return appErr
+	}
+	return err
+}
+
+func monitoringWorkerErrorFields(err error) []zap.Field {
+	normalized := normalizeMonitoringWorkerError(err)
+	if normalized == nil {
+		return nil
+	}
+
+	if appErr, ok := normalized.(*response.AppError); ok {
+		fields := []zap.Field{
+			zap.String("error_code", appErr.Message),
+			zap.Int("app_code", appErr.Code),
+		}
+		if appErr.Detail != "" {
+			fields = append(fields, zap.String("detail", appErr.Detail))
+		}
+		if appErr.Cause != nil {
+			fields = append(fields, zap.Error(appErr.Cause))
+		}
+		return fields
+	}
+
+	return []zap.Field{zap.Error(normalized)}
+}
+
+func MonitoringWorkerErrorFields(err error) []zap.Field {
+	return monitoringWorkerErrorFields(err)
+}