Added NoteStore interface, mock and repository with Create method

internal/repository/notes_test.go

@@ -4,8 +4,8 @@ import (
 	"testing"
 	"testing/synctest"
 
-	"time"
 	"fmt"
+	"time"
 
 	"git.hrafn.xyz/aether/notes/internal/models"
 	"git.hrafn.xyz/aether/notes/internal/repository"
@@ -71,4 +71,4 @@ func TestCreateNote(t *testing.T) {
 			fmt.Printf("Test case '%s' passed.\n", tc.name)
 		})
 	}
-	}
+}

internal/repository/notestore.go

@@ -3,6 +3,7 @@ package repository
 import (
 	"git.hrafn.xyz/aether/notes/internal/models"
 )
+
 type NoteStore interface {
 	SaveNote(models.Note) (models.Note, error)
 }

internal/repository/notestore_test.go

@@ -5,11 +5,11 @@ import (
 )
 
 type mockNoteStore struct {
-	notes []models.Note
+	Notes []models.Note
 }
 
 func (m *mockNoteStore) SaveNote(note models.Note) (models.Note, error) {
-	note.ID = len(m.notes) + 1
-	m.notes = append(m.notes, note)
+	note.ID = len(m.Notes) + 1
+	m.Notes = append(m.Notes, note)
 	return note, nil
 }