Makefile, server entry point prototype, compareFiles function + other minor changes

internal/core/models.go

@@ -5,10 +5,10 @@ import (
 )
 
 type File struct {
-	ID       string
-	ParentDirectory     string
-	Metadata FileMetadata
-	State    SynchronizationState
+	ID              string
+	ParentDirectory Folder
+	Metadata        FileMetadata
+	State           SynchronizationState
 }
 
 type FileMetadata struct {
@@ -22,4 +22,13 @@ type SynchronizationState struct {
 	Status    string // "pending", "in_progress", "completed", "error"
 	Progress  float64
 	LastError error
+}
+
+type Folder struct {
+	ID				string
+	Files			[]File
+	Subfolders		[]Folder
+	
+	Name 			string
+	Path			string
 }