在有多个路径参数时,缺少参数分隔的','

这是生成的
```
post(url: '/wx-user/login', options?: SwaggerOptions<{}, {code: unknownminiappId: unknown}, {}, unknown>): Promise
````
应该时这样的
```
post(url: '/wx-user/login', options?: SwaggerOptions<{}, {code: unknown,miniappId: unknown}, {}, unknown>): Promise
```

Reproduce the generated TypeScript signature shown in the issue and trace the Swagger-to-TypeScript generation entry point that formats multiple path parameters. Check existing generator tests for parameter-list output, then verify that the generated signature includes a comma between code and miniappId without changing unrelated formatting.

Written by the indexing model from the issue text.