Projekt-Model um UUID und Kürzel-Felder erweitert

- UUID-Feld für eindeutige externe Projektidentifikation hinzugefügt
- Kürzel-Feld für benutzerdefinierte Projektabkürzungen (max 8 Zeichen)
- Felder in ProjectToCreate und ProjectToUpdate Strukturen integriert

src/app/project/model.go

@@ -15,10 +15,18 @@ type Project struct {
 	// The omitempty tag excludes this field if it's empty during insertion
 	ID primitive.ObjectID `bson:"_id,omitempty" json:"id"`
 
+	// UUID is a unique identifier for this project that can be used across systems
+	// Generated automatically when creating new projects for guaranteed uniqueness
+	UUID uuid.UUID `bson:"uuid" json:"uuid"`
+
 	// ProjectID is a human-readable unique identifier (e.g., "PRJ-2025-001")
 	// This allows users to reference projects with meaningful IDs
 	ProjectID string `bson:"project_id" json:"projectId"`
 
+	// Shortcut is a user-defined abbreviation for quick project reference
+	// Must be unique within the system and allows faster project identification
+	Shortcut string `bson:"shortcut" json:"shortcut"`
+
 	// Name is the display name of the project (e.g., "HARMONY Mobile")
 	// This is what users see in the interface as the project title
 	Name string `bson:"name" json:"name"`
@@ -57,6 +65,10 @@ type ProjectToCreate struct {
 	// Validation ensures this field is not empty
 	ProjectID string `json:"projectId" hvalidate:"required"`
 
+	// Shortcut is a user-defined abbreviation that must be unique (max 8 characters)
+	// Used for quick project identification and references
+	Shortcut string `json:"shortcut" hvalidate:"required,max8"`
+
 	// Name is required and serves as the display title
 	// Validation ensures this field is not empty
 	Name string `json:"name" hvalidate:"required"`
@@ -85,6 +97,10 @@ type ProjectToUpdate struct {
 	// This field is populated from the URL parameter
 	ID primitive.ObjectID `bson:"_id" json:"id"`
 
+	// Shortcut can be updated and must remain unique (max 8 characters)
+	// Users can change the project abbreviation for better organization
+	Shortcut string `json:"shortcut" hvalidate:"required,max=8"`
+
 	// Name can be updated and is required to be non-empty
 	// Users can change the display name of their projects
 	Name string `json:"name" hvalidate:"required"`
@@ -108,6 +124,7 @@ type ProjectToUpdate struct {
 func (p *Project) ToUpdate() *ProjectToUpdate {
 	return &ProjectToUpdate{
 		ID:          p.ID,          // Preserve the project identifier
+		Shortcut:    p.Shortcut,    // Current shortcut as default
 		Name:        p.Name,        // Current name as default
 		Description: p.Description, // Current description as default
 		StartDate:   p.StartDate,   // Current start date as default
@@ -140,10 +157,18 @@ type RequirementSummary struct {
 	// Used for linking to detailed requirement views
 	ID primitive.ObjectID `bson:"_id" json:"id"`
 
+	// UUID is a unique identifier for this requirement that can be used across systems
+	// Generated automatically when creating new requirements for guaranteed uniqueness
+	UUID uuid.UUID `bson:"uuid" json:"uuid"`
+
 	// RequirementID is a human-readable identifier for this requirement
 	// Generated automatically if not provided (e.g., "REQ-abc123")
 	RequirementID string `bson:"requirement_id" json:"requirementId"`
 
+	// Shortcut is a user-defined abbreviation for quick requirement reference
+	// Must be unique within the project and allows faster requirement identification
+	Shortcut string `bson:"shortcut" json:"shortcut"`
+
 	// Condition describes the circumstances under which this requirement applies
 	// This field comes from the requirement parsing and validation process
 	Condition string `bson:"condition" json:"condition"`