Add monitoring service and database schema

- Implement monitoring service with heartbeat, lease tasks, resume tasks, and task result handling.
- Create monitoring time utilities for business date calculations.
- Add unit tests for date window resolution and business day handling.
- Define database schema for monitoring-related tables including quotas, daily reports, and task management.
- Establish migration scripts for creating and dropping monitoring tables.

server/cmd/tenant-api/main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"context"
 	"fmt"
 	"log"
 	"os"
@@ -8,6 +9,7 @@ import (
 	"syscall"
 
 	"github.com/geo-platform/tenant-api/internal/bootstrap"
+	tenantapp "github.com/geo-platform/tenant-api/internal/tenant/app"
 	"github.com/geo-platform/tenant-api/internal/tenant/transport"
 )
 
@@ -23,6 +25,16 @@ func main() {
 	}
 	defer app.Close()
 
+	workerCtx, workerCancel := context.WithCancel(context.Background())
+	defer workerCancel()
+
+	monitoringCallbackService := tenantapp.NewMonitoringCallbackService(app.DB, app.MonitoringDB, app.RabbitMQ, app.LLM, app.Logger)
+	tenantapp.NewMonitoringResultIngestWorker(monitoringCallbackService, app.RabbitMQ, app.Logger).Start(workerCtx)
+	tenantapp.NewMonitoringProjectionRebuildWorker(monitoringCallbackService, app.RabbitMQ, app.Logger).Start(workerCtx)
+	tenantapp.NewMonitoringResultRecoveryWorker(app.MonitoringDB, monitoringCallbackService, app.Logger).Start(workerCtx)
+	tenantapp.NewMonitoringLeaseRecoveryWorker(app.MonitoringDB, app.Logger).Start(workerCtx)
+	tenantapp.NewMonitoringReceivedInspectionWorker(app.MonitoringDB, app.Logger).Start(workerCtx)
+
 	transport.RegisterRoutes(app)
 
 	addr := fmt.Sprintf(":%d", app.Config.Server.Port)
@@ -37,5 +49,6 @@ func main() {
 	quit := make(chan os.Signal, 1)
 	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
 	<-quit
+	workerCancel()
 	app.Logger.Info("shutting down...")
 }