Implement get by ID

internal/store/sqlite/sqlite.go

@@ -3,6 +3,7 @@ package sqlite
 import (
 	"context"
 	"database/sql"
+	"errors"
 	"fmt"
 	"time"
 
@@ -114,7 +115,17 @@ func (s *SQLiteStore) SaveNote(ctx context.Context, note models.Note) (models.No
 }
 
 func (s *SQLiteStore) GetNoteByID(ctx context.Context, id int) (models.Note, error) {
-	return models.Note{}, fmt.Errorf("not implemented")
+	row := s.read.QueryRowContext(ctx, `
+		SELECT id, content, last_update FROM notes WHERE id = ?;
+	`, id)
+	note, err := s.scanNote(row)
+	if err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return models.Note{}, fmt.Errorf("note with ID %d not found: %w", id, err)
+		}
+		return models.Note{}, fmt.Errorf("failed to get note by ID: %w", err)
+	}
+	return note, nil
 }
 
 func (s *SQLiteStore) validateSchema(ctx context.Context) error {