Add gitservers to backend

backend/app/models/gitserver.go

@@ -0,0 +1,34 @@
+package models
+
+import "errors"
+
+type GitServer struct {
+	ID       string `json:"id"`
+	Name     string `json:"name"`
+	Protocol string `json:"protocol"`
+	BaseUrl  string `json:"baseUrl"`
+	Type     string `json:"type"`
+	CreatedAt string `json:"created_at"`
+}
+
+func ValidateGitServer(gs *GitServer) error {
+	if gs.Name == "" {
+		return errors.New("name is required")
+	}
+	if gs.Protocol == "" {
+		return errors.New("protocol is required")
+	}
+	if gs.Protocol != "http" && gs.Protocol != "https" {
+		return errors.New("protocol must be either 'http' or 'https'")
+	}
+	if gs.BaseUrl == "" {
+		return errors.New("baseUrl is required")
+	}
+	if gs.Type == "" {
+		return errors.New("type is required")
+	}
+	if gs.Type != "github" && gs.Type != "gitlab" && gs.Type != "gitea" {
+		return errors.New("type must be either 'github', 'gitlab' or 'gitea'")
+	}
+	return nil
+}