chore(git): 更新.gitignore以忽略生成文件

- 添加了对 packages/cli/src/generated/ 目录的忽略规则
- 添加了对 packages/core/src/generated/ 目录的忽略规则
- 添加了对 packages/vscode-ide-companion/ 下所有 .vsix 文件的忽略规则

Author: hqwlkj

.gitignore

@@ -9,3 +9,9 @@ src/generated/
 *.log
 *.vsix
 .deepcode/settings.json
+
+
+# Generated files
+packages/cli/src/generated/
+packages/core/src/generated/
+packages/vscode-ide-companion/*.vsix