Initialize CMS application scaffold

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

internal/repository/interfaces.go

@@ -0,0 +1,17 @@
+package repository
+
+import (
+	"context"
+	"github.com/example/cms/internal/domain"
+)
+
+type IUserRepository interface {
+	FindOrCreateByIdentity(context.Context, domain.User) (domain.User, error)
+}
+type IAdminRepository interface {
+	FindByEmail(context.Context, string) (domain.Admin, error)
+}
+type ISessionRepository interface {
+	Create(context.Context, domain.Session) error
+	FindValid(context.Context, string) (domain.Session, error)
+}