diff --git a/cmd/server/main.go b/cmd/server/main.go
index 2d607b1..8c2cdbe 100644
--- a/cmd/server/main.go
+++ b/cmd/server/main.go
@@ -2,13 +2,14 @@ package main
 
 import (
 	"context"
-	"log"
+	"os"
 
 	"github.com/jackc/pgx/v5/pgxpool"
 	_ "github.com/jackc/pgx/v5/stdlib"
 	rkboot "github.com/rookie-ninja/rk-boot/v2"
 	rkentry "github.com/rookie-ninja/rk-entry/v2/entry"
 	rkgrpc "github.com/rookie-ninja/rk-grpc/v2/boot"
+	"go.uber.org/zap"
 	"google.golang.org/grpc"
 
 	"git.techease.ru/Smart-search/smart-search-back/internal/config"
@@ -19,50 +20,51 @@ import (
 )
 
 func main() {
-	cfg, err := config.Load("config/config.yaml")
-	if err != nil {
-		log.Fatalf("Failed to load config: %v", err)
-	}
-
-	ctx := context.Background()
-
-	if err := database.RunMigrations(cfg.DatabaseURL()); err != nil {
-		log.Fatalf("Failed to run migrations: %v", err)
-	}
-
-	pool, err := pgxpool.New(ctx, cfg.DatabaseURL())
-	if err != nil {
-		log.Fatalf("Failed to connect to database: %v", err)
-	}
-	defer pool.Close()
-
-	if err := pool.Ping(ctx); err != nil {
-		log.Fatalf("Failed to ping database: %v", err)
-	}
-
-	log.Println("Successfully connected to database")
-
 	boot := rkboot.NewBoot(rkboot.WithBootConfigPath("config/boot.yaml", nil))
 
-	grpcEntry := rkgrpc.GetGrpcEntry("smart-search-service")
-	if grpcEntry == nil {
-		log.Fatal("Failed to get gRPC entry from rk-boot")
-	}
-
-	loggerEntry := rkentry.GlobalAppCtx.GetLoggerEntry("smart-search-service")
+	loggerEntry := rkentry.GlobalAppCtx.GetLoggerEntry("smart-search-logger")
 	if loggerEntry == nil {
 		loggerEntry = rkentry.GlobalAppCtx.GetLoggerEntryDefault()
 	}
 	logger := loggerEntry.Logger
 
+	cfg, err := config.Load("config/config.yaml")
+	if err != nil {
+		logger.Fatal("Failed to load config", zap.Error(err))
+	}
+
+	ctx := context.Background()
+
+	if err := database.RunMigrations(cfg.DatabaseURL(), logger); err != nil {
+		logger.Fatal("Failed to run migrations", zap.Error(err))
+	}
+
+	pool, err := pgxpool.New(ctx, cfg.DatabaseURL())
+	if err != nil {
+		logger.Fatal("Failed to connect to database", zap.Error(err))
+	}
+	defer pool.Close()
+
+	if err := pool.Ping(ctx); err != nil {
+		logger.Fatal("Failed to ping database", zap.Error(err))
+	}
+
+	logger.Info("Successfully connected to database")
+
+	grpcEntry := rkgrpc.GetGrpcEntry("smart-search-service")
+	if grpcEntry == nil {
+		logger.Fatal("Failed to get gRPC entry from rk-boot")
+		os.Exit(1)
+	}
+
 	sessionRepo := repository.NewSessionRepository(pool)
 	inviteRepo := repository.NewInviteRepository(pool)
 
-	sessionCleaner := worker.NewSessionCleaner(ctx, sessionRepo)
+	sessionCleaner := worker.NewSessionCleaner(ctx, sessionRepo, logger)
 	sessionCleaner.Start()
 	defer sessionCleaner.Stop()
 
-	inviteCleaner := worker.NewInviteCleaner(ctx, inviteRepo)
+	inviteCleaner := worker.NewInviteCleaner(ctx, inviteRepo, logger)
 	inviteCleaner.Start()
 	defer inviteCleaner.Stop()
 
@@ -81,9 +83,9 @@ func main() {
 
 	boot.Bootstrap(ctx)
 
-	log.Println("gRPC server started via rk-boot")
+	logger.Info("gRPC server started via rk-boot")
 
 	boot.WaitForShutdownSig(ctx)
 
-	log.Println("Server stopped gracefully")
+	logger.Info("Server stopped gracefully")
 }
diff --git a/config/boot.yaml b/config/boot.yaml
index a648c6f..6a6ada0 100644
--- a/config/boot.yaml
+++ b/config/boot.yaml
@@ -1,16 +1,12 @@
 ---
 logger:
   - name: smart-search-logger
-    description: "Application logger for smart-search service"
     default: true
     zap:
-      level: error
-      development: false
+      level: info
       encoding: console
       outputPaths: ["stdout"]
       errorOutputPaths: ["stderr"]
-      disableCaller: false
-      disableStacktrace: false
 
 grpc:
   - name: smart-search-service
@@ -19,16 +15,17 @@ grpc:
     enableReflection: true
     enableRkGwOption: true
     loggerEntry: smart-search-logger
-    eventEntry: smart-search-logger
     middleware:
       logging:
         enabled: true
-        loggerEncoding: "console"
+        loggerEncoding: console
         loggerOutputPaths: ["stdout"]
+        eventEncoding: console
+        eventOutputPaths: []
       meta:
-        enabled: true
+        enabled: false
       trace:
-        enabled: true
+        enabled: false
       prometheus:
         enabled: true
       auth:
diff --git a/go.mod b/go.mod
index 3178d64..a5df3ac 100644
--- a/go.mod
+++ b/go.mod
@@ -17,6 +17,7 @@ require (
 	github.com/testcontainers/testcontainers-go/modules/postgres v0.40.0
 	github.com/xuri/excelize/v2 v2.10.0
 	go.uber.org/zap v1.27.1
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20260114163908-3f89685c29c3
 	google.golang.org/grpc v1.78.0
 	google.golang.org/protobuf v1.36.11
 	gopkg.in/yaml.v3 v3.0.1
@@ -95,7 +96,6 @@ require (
 	github.com/spf13/cast v1.10.0 // indirect
 	github.com/spf13/pflag v1.0.10 // indirect
 	github.com/spf13/viper v1.21.0 // indirect
-	github.com/stretchr/objx v0.5.2 // indirect
 	github.com/subosito/gotenv v1.6.0 // indirect
 	github.com/tiendc/go-deepcopy v1.7.1 // indirect
 	github.com/tklauser/go-sysconf v0.3.12 // indirect
@@ -126,7 +126,6 @@ require (
 	golang.org/x/sys v0.40.0 // indirect
 	golang.org/x/text v0.33.0 // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20251029180050-ab9386a59fda // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20260114163908-3f89685c29c3 // indirect
 	gopkg.in/natefinch/lumberjack.v2 v2.2.1 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	nhooyr.io/websocket v1.8.6 // indirect
diff --git a/internal/database/migrations.go b/internal/database/migrations.go
index 97a8d6c..86129d9 100644
--- a/internal/database/migrations.go
+++ b/internal/database/migrations.go
@@ -7,13 +7,14 @@ import (
 
 	_ "github.com/jackc/pgx/v5/stdlib"
 	"github.com/pressly/goose/v3"
+	"go.uber.org/zap"
 )
 
-func RunMigrations(databaseURL string) error {
-	return RunMigrationsFromPath(databaseURL, "migrations")
+func RunMigrations(databaseURL string, logger *zap.Logger) error {
+	return RunMigrationsFromPath(databaseURL, "migrations", logger)
 }
 
-func RunMigrationsFromPath(databaseURL, migrationsDir string) error {
+func RunMigrationsFromPath(databaseURL, migrationsDir string, logger *zap.Logger) error {
 	db, err := sql.Open("pgx", databaseURL)
 	if err != nil {
 		return fmt.Errorf("failed to open database connection for migrations: %w", err)
@@ -28,6 +29,8 @@ func RunMigrationsFromPath(databaseURL, migrationsDir string) error {
 		return fmt.Errorf("failed to set goose dialect: %w", err)
 	}
 
+	goose.SetLogger(&gooseLogger{logger: logger})
+
 	absPath, err := filepath.Abs(migrationsDir)
 	if err != nil {
 		return fmt.Errorf("failed to resolve migrations path: %w", err)
@@ -39,3 +42,15 @@ func RunMigrationsFromPath(databaseURL, migrationsDir string) error {
 
 	return nil
 }
+
+type gooseLogger struct {
+	logger *zap.Logger
+}
+
+func (l *gooseLogger) Fatalf(format string, v ...interface{}) {
+	l.logger.Fatal(fmt.Sprintf(format, v...))
+}
+
+func (l *gooseLogger) Printf(format string, v ...interface{}) {
+	l.logger.Info(fmt.Sprintf(format, v...))
+}
diff --git a/internal/worker/invite_cleaner.go b/internal/worker/invite_cleaner.go
index 7cb3680..f4aa9d1 100644
--- a/internal/worker/invite_cleaner.go
+++ b/internal/worker/invite_cleaner.go
@@ -2,9 +2,10 @@ package worker
 
 import (
 	"context"
-	"log"
 	"time"
 
+	"go.uber.org/zap"
+
 	"git.techease.ru/Smart-search/smart-search-back/internal/repository"
 )
 
@@ -13,13 +14,15 @@ type InviteCleaner struct {
 	ctx        context.Context
 	ticker     *time.Ticker
 	done       chan bool
+	logger     *zap.Logger
 }
 
-func NewInviteCleaner(ctx context.Context, inviteRepo repository.InviteRepository) *InviteCleaner {
+func NewInviteCleaner(ctx context.Context, inviteRepo repository.InviteRepository, logger *zap.Logger) *InviteCleaner {
 	return &InviteCleaner{
 		inviteRepo: inviteRepo,
 		ctx:        ctx,
 		done:       make(chan bool),
+		logger:     logger,
 	}
 }
 
@@ -36,13 +39,13 @@ func (w *InviteCleaner) Start() {
 			case <-w.done:
 				return
 			case <-w.ctx.Done():
-				log.Println("Invite cleaner context cancelled, stopping worker")
+				w.logger.Info("Invite cleaner context cancelled, stopping worker")
 				return
 			}
 		}
 	}()
 
-	log.Println("Invite cleaner worker started (runs every 6 hours)")
+	w.logger.Info("Invite cleaner worker started (runs every 6 hours)")
 }
 
 func (w *InviteCleaner) Stop() {
@@ -53,17 +56,17 @@ func (w *InviteCleaner) Stop() {
 	case w.done <- true:
 	default:
 	}
-	log.Println("Invite cleaner worker stopped")
+	w.logger.Info("Invite cleaner worker stopped")
 }
 
 func (w *InviteCleaner) deactivateExpiredInvites() {
 	count, err := w.inviteRepo.DeactivateExpired(w.ctx)
 	if err != nil {
-		log.Printf("Error deactivating expired invites: %v", err)
+		w.logger.Error("Error deactivating expired invites", zap.Error(err))
 		return
 	}
 
 	if count > 0 {
-		log.Printf("Deactivated %d expired invite codes", count)
+		w.logger.Info("Deactivated expired invite codes", zap.Int("count", count))
 	}
 }
diff --git a/internal/worker/session_cleaner.go b/internal/worker/session_cleaner.go
index 97b6ddf..ed542c2 100644
--- a/internal/worker/session_cleaner.go
+++ b/internal/worker/session_cleaner.go
@@ -2,9 +2,10 @@ package worker
 
 import (
 	"context"
-	"log"
 	"time"
 
+	"go.uber.org/zap"
+
 	"git.techease.ru/Smart-search/smart-search-back/internal/repository"
 )
 
@@ -13,13 +14,15 @@ type SessionCleaner struct {
 	ctx         context.Context
 	ticker      *time.Ticker
 	done        chan bool
+	logger      *zap.Logger
 }
 
-func NewSessionCleaner(ctx context.Context, sessionRepo repository.SessionRepository) *SessionCleaner {
+func NewSessionCleaner(ctx context.Context, sessionRepo repository.SessionRepository, logger *zap.Logger) *SessionCleaner {
 	return &SessionCleaner{
 		sessionRepo: sessionRepo,
 		ctx:         ctx,
 		done:        make(chan bool),
+		logger:      logger,
 	}
 }
 
@@ -36,13 +39,13 @@ func (w *SessionCleaner) Start() {
 			case <-w.done:
 				return
 			case <-w.ctx.Done():
-				log.Println("Session cleaner context cancelled, stopping worker")
+				w.logger.Info("Session cleaner context cancelled, stopping worker")
 				return
 			}
 		}
 	}()
 
-	log.Println("Session cleaner worker started (runs every hour)")
+	w.logger.Info("Session cleaner worker started (runs every hour)")
 }
 
 func (w *SessionCleaner) Stop() {
@@ -53,17 +56,17 @@ func (w *SessionCleaner) Stop() {
 	case w.done <- true:
 	default:
 	}
-	log.Println("Session cleaner worker stopped")
+	w.logger.Info("Session cleaner worker stopped")
 }
 
 func (w *SessionCleaner) cleanExpiredSessions() {
 	count, err := w.sessionRepo.DeleteExpired(w.ctx)
 	if err != nil {
-		log.Printf("Error cleaning expired sessions: %v", err)
+		w.logger.Error("Error cleaning expired sessions", zap.Error(err))
 		return
 	}
 
 	if count > 0 {
-		log.Printf("Cleaned %d expired sessions", count)
+		w.logger.Info("Cleaned expired sessions", zap.Int("count", count))
 	}
 }
diff --git a/internal/worker/worker_test.go b/internal/worker/worker_test.go
index c6b864e..4c4bf2e 100644
--- a/internal/worker/worker_test.go
+++ b/internal/worker/worker_test.go
@@ -8,6 +8,7 @@ import (
 
 	"github.com/gojuno/minimock/v3"
 	"github.com/stretchr/testify/suite"
+	"go.uber.org/zap"
 
 	"git.techease.ru/Smart-search/smart-search-back/internal/mocks"
 )
@@ -17,6 +18,7 @@ type WorkerSuite struct {
 	ctx    context.Context
 	cancel context.CancelFunc
 	ctrl   *minimock.Controller
+	logger *zap.Logger
 }
 
 func TestWorkerSuite(t *testing.T) {
@@ -26,6 +28,7 @@ func TestWorkerSuite(t *testing.T) {
 func (s *WorkerSuite) SetupTest() {
 	s.ctx, s.cancel = context.WithCancel(context.Background())
 	s.ctrl = minimock.NewController(s.T())
+	s.logger = zap.NewNop()
 }
 
 func (s *WorkerSuite) TearDownTest() {
@@ -42,7 +45,7 @@ func (s *WorkerSuite) TestSessionCleaner_StartStop() {
 		return 5, nil
 	})
 
-	cleaner := NewSessionCleaner(s.ctx, sessionRepo)
+	cleaner := NewSessionCleaner(s.ctx, sessionRepo, s.logger)
 
 	cleaner.Start()
 
@@ -62,7 +65,7 @@ func (s *WorkerSuite) TestSessionCleaner_ContextCancellation() {
 		return 0, nil
 	})
 
-	cleaner := NewSessionCleaner(s.ctx, sessionRepo)
+	cleaner := NewSessionCleaner(s.ctx, sessionRepo, s.logger)
 
 	cleaner.Start()
 
@@ -84,7 +87,7 @@ func (s *WorkerSuite) TestInviteCleaner_StartStop() {
 		return 3, nil
 	})
 
-	cleaner := NewInviteCleaner(s.ctx, inviteRepo)
+	cleaner := NewInviteCleaner(s.ctx, inviteRepo, s.logger)
 
 	cleaner.Start()
 
@@ -104,7 +107,7 @@ func (s *WorkerSuite) TestInviteCleaner_ContextCancellation() {
 		return 0, nil
 	})
 
-	cleaner := NewInviteCleaner(s.ctx, inviteRepo)
+	cleaner := NewInviteCleaner(s.ctx, inviteRepo, s.logger)
 
 	cleaner.Start()
 
@@ -124,7 +127,7 @@ func (s *WorkerSuite) TestSessionCleaner_ConcurrentStops() {
 		return 0, nil
 	})
 
-	cleaner := NewSessionCleaner(s.ctx, sessionRepo)
+	cleaner := NewSessionCleaner(s.ctx, sessionRepo, s.logger)
 
 	cleaner.Start()
 
@@ -151,7 +154,7 @@ func (s *WorkerSuite) TestInviteCleaner_ConcurrentStops() {
 		return 0, nil
 	})
 
-	cleaner := NewInviteCleaner(s.ctx, inviteRepo)
+	cleaner := NewInviteCleaner(s.ctx, inviteRepo, s.logger)
 
 	cleaner.Start()
 
@@ -180,7 +183,7 @@ func (s *WorkerSuite) TestSessionCleaner_MultipleStartStop() {
 		return 2, nil
 	})
 
-	cleaner := NewSessionCleaner(s.ctx, sessionRepo)
+	cleaner := NewSessionCleaner(s.ctx, sessionRepo, s.logger)
 
 	for i := 0; i < 3; i++ {
 		cleaner.Start()
@@ -200,7 +203,7 @@ func (s *WorkerSuite) TestInviteCleaner_MultipleStartStop() {
 		return 1, nil
 	})
 
-	cleaner := NewInviteCleaner(s.ctx, inviteRepo)
+	cleaner := NewInviteCleaner(s.ctx, inviteRepo, s.logger)
 
 	for i := 0; i < 3; i++ {
 		cleaner.Start()
diff --git a/pkg/errors/errors.go b/pkg/errors/errors.go
index fbd22d1..463e200 100644
--- a/pkg/errors/errors.go
+++ b/pkg/errors/errors.go
@@ -5,6 +5,7 @@ import (
 	"fmt"
 
 	"go.uber.org/zap"
+	"google.golang.org/genproto/googleapis/rpc/errdetails"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 )
@@ -88,20 +89,31 @@ func ToGRPCError(err error, zapLogger *zap.Logger, method string) error {
 		return status.Error(codes.Internal, "internal server error")
 	}
 
+	var grpcCode codes.Code
 	switch appErr.Code {
 	case AuthInvalidCredentials, AuthMissing, AuthInvalidToken, RefreshInvalid:
-		return status.Error(codes.Unauthenticated, appErr.Message)
+		grpcCode = codes.Unauthenticated
 	case PermissionDenied:
-		return status.Error(codes.PermissionDenied, appErr.Message)
+		grpcCode = codes.PermissionDenied
 	case InviteLimitReached:
-		return status.Error(codes.ResourceExhausted, appErr.Message)
-	case InsufficientBalance, InviteInvalidOrExpired:
-		return status.Error(codes.FailedPrecondition, appErr.Message)
+		grpcCode = codes.ResourceExhausted
+	case InsufficientBalance:
+		grpcCode = codes.FailedPrecondition
+	case InviteInvalidOrExpired:
+		grpcCode = codes.NotFound
 	case EmailAlreadyExists:
-		return status.Error(codes.AlreadyExists, appErr.Message)
+		grpcCode = codes.AlreadyExists
 	case UserNotFound, RequestNotFound:
-		return status.Error(codes.NotFound, appErr.Message)
+		grpcCode = codes.NotFound
 	default:
-		return status.Error(codes.Unknown, appErr.Message)
+		grpcCode = codes.Unknown
 	}
+
+	st, err := status.New(grpcCode, appErr.Message).WithDetails(&errdetails.ErrorInfo{
+		Reason: appErr.Code,
+	})
+	if err != nil {
+		return status.Error(grpcCode, appErr.Message)
+	}
+	return st.Err()
 }
diff --git a/tests/auth_handler_test.go b/tests/auth_handler_test.go
index def4a1b..298ea97 100644
--- a/tests/auth_handler_test.go
+++ b/tests/auth_handler_test.go
@@ -208,7 +208,7 @@ func (s *IntegrationSuite) TestAuthHandler_RegisterInvalidInviteCode() {
 
 	st, ok := status.FromError(err)
 	s.True(ok)
-	s.Equal(codes.FailedPrecondition, st.Code())
+	s.Equal(codes.NotFound, st.Code())
 }
 
 func (s *IntegrationSuite) TestAuthHandler_RegisterExpiredInviteCode() {
@@ -232,7 +232,7 @@ func (s *IntegrationSuite) TestAuthHandler_RegisterExpiredInviteCode() {
 
 	st, ok := status.FromError(err)
 	s.True(ok)
-	s.Equal(codes.FailedPrecondition, st.Code())
+	s.Equal(codes.NotFound, st.Code())
 }
 
 func (s *IntegrationSuite) TestAuthHandler_RegisterExhaustedInviteCode() {
@@ -270,7 +270,7 @@ func (s *IntegrationSuite) TestAuthHandler_RegisterExhaustedInviteCode() {
 
 	st, ok := status.FromError(err)
 	s.True(ok)
-	s.Equal(codes.FailedPrecondition, st.Code())
+	s.Equal(codes.NotFound, st.Code())
 }
 
 func (s *IntegrationSuite) TestAuthHandler_RegisterDuplicateEmail() {
diff --git a/tests/integration_suite_test.go b/tests/integration_suite_test.go
index b563a2f..9f3dee1 100644
--- a/tests/integration_suite_test.go
+++ b/tests/integration_suite_test.go
@@ -78,7 +78,8 @@ func (s *IntegrationSuite) SetupSuite() {
 	s.T().Logf("PostgreSQL connection string: %s", connStr)
 
 	s.T().Log("Running migrations...")
-	err = database.RunMigrationsFromPath(connStr, "../migrations")
+	logger, _ := zap.NewDevelopment()
+	err = database.RunMigrationsFromPath(connStr, "../migrations", logger)
 	s.Require().NoError(err)
 
 	s.T().Log("Creating connection pool...")
@@ -94,7 +95,6 @@ func (s *IntegrationSuite) SetupSuite() {
 	s.Require().NoError(err)
 
 	s.T().Log("Creating gRPC server...")
-	logger, _ := zap.NewDevelopment()
 
 	authHandler, userHandler, inviteHandler, requestHandler, supplierHandler := grpchandlers.NewHandlers(
 		pool,