Add automation runs quota tracking to quota management page

- Add max_automation_runs to QUOTA_CONFIG in QuotaService
- Add runs_this_month and runs_month_started fields to TenantDefaultFlow
- Add increment_run_count() method for tracking flow executions
- Add Bot icon for automation quotas in frontend QuotaSettings

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/src/pages/settings/QuotaSettings.tsx

@@ -9,7 +9,7 @@ import { useTranslation } from 'react-i18next';
 import { useOutletContext, Link } from 'react-router-dom';
 import {
   AlertTriangle, Archive, Check, ChevronDown, ChevronUp,
-  Clock, Download, Users, Briefcase, Calendar, RefreshCw
+  Clock, Download, Users, Briefcase, Calendar, RefreshCw, Bot
 } from 'lucide-react';
 import { Business, User, QuotaOverage } from '../../types';
 import {
@@ -136,6 +136,10 @@ const QuotaSettings: React.FC = () => {
         return <Briefcase className="h-5 w-5" />;
       case 'MAX_SERVICES':
         return <Calendar className="h-5 w-5" />;
+      case 'MAX_AUTOMATION_RUNS':
+        return <Bot className="h-5 w-5" />;
+      case 'MAX_AUTOMATED_TASKS':
+        return <Bot className="h-5 w-5" />;
       default:
         return <AlertTriangle className="h-5 w-5" />;
     }