feat: login service and implement database storage

internal/accessor/staff/impl.go

@@ -0,0 +1,18 @@
+package staffrepository
+
+import (
+	"github.com/ardeman/project-legalgo-go/database"
+	staffmodel "github.com/ardeman/project-legalgo-go/database/staff"
+)
+
+type StaffRepository struct {
+	DB *database.DB
+}
+
+type StaffInterface interface {
+	GetStaff(string) (*staffmodel.Staff, error)
+}
+
+func New(db *database.DB) StaffInterface {
+	return &StaffRepository{db}
+}