Create a Python script at /app/confmerge that merges INI-style configuration files with an !include…

Create a Python script at /app/confmerge that merges INI-style configuration files with an !include…: a task in TermGrade Environments: 1,004 executable Linux tasks (Harbor dataset). Exact I/O Contract: - Input: one or more INI-style config files with UTF-8 encoding. - Output: merged configuration…

The task

**Exact I/O Contract:** - Input: one or more INI-style config files with UTF-8 encoding. - Output: merged configuration printed to stdout with exactly one trailing newline. - The script must exit 0 on success, non-zero on any error (with nothing on stdout except possibly an error message on stderr).

Part of ai-and/termgrade-environments.