款号管理列表设置为只读模式

将衣服款号管理界面的表格所有列（款号、类目数量、款式图预览）设置为只读，防止用户直接在表格中编辑内容，保持与原料库列表的一致性。

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

garment_dialogs.py

@@ -142,17 +142,24 @@ class GarmentLibraryDialog(QDialog):
                 self.garment_table.setRowHeight(i, 140)
 
             for row_idx, (style_number, image_path) in enumerate(rows):
-                self.garment_table.setItem(row_idx, 0, QTableWidgetItem(style_number))
+                # 款号列 - 设置为只读
+                style_item = QTableWidgetItem(style_number)
+                style_item.setFlags(style_item.flags() & ~Qt.ItemIsEditable)
+                self.garment_table.setItem(row_idx, 0, style_item)
 
                 # 查询材料数量
                 with self.get_conn() as conn:
                     cursor2 = conn.execute("SELECT COUNT(*) FROM garment_materials WHERE style_number = ?", (style_number,))
                     count = cursor2.fetchone()[0]
-                self.garment_table.setItem(row_idx, 1, QTableWidgetItem(str(count)))
+                # 类目数量列 - 设置为只读
+                count_item = QTableWidgetItem(str(count))
+                count_item.setFlags(count_item.flags() & ~Qt.ItemIsEditable)
+                self.garment_table.setItem(row_idx, 1, count_item)
 
                 # 显示图片预览
                 image_item = QTableWidgetItem()
                 image_item.setTextAlignment(Qt.AlignCenter)
+                image_item.setFlags(image_item.flags() & ~Qt.ItemIsEditable)
 
                 if image_path and os.path.exists(image_path):
                     try: