[BUG] case.for_customer Not Populating in Templates

Describe the bug
The variable case.for_customer is not available in the case dictionary during template rendering, resulting in a failure to display the expected customer name in generated reports. Although case.client.customer_name contains the relevant data, case.for_customer is undefined, causing Jinja templates that rely on it to fail or display no output. This means that the documentation in https://docs.dfir-iris.org/operations/reports/ is inaccurate at least on this count.

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To Reproduce
Steps to reproduce the behavior:

1. Create a new report template that includes the {{ case.for_customer }} variable.
2. Populate the case with valid client information.
3. Generate a report using the template.
4. Observe that the case.for_customer variable does not render any output.

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Expected behavior
The case.for_customer variable should be populated with the customer_name field from case.client and display the appropriate customer name in the report template.

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Screenshots
N/A (This issue is directly related to rendered template output and debugging logs).

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Additional context

• Debugging logs confirm that case.client.customer_name is populated as part of the case dictionary, but case.for_customer is missing.
• Documentation indicates case.for_customer should exist as a standard tag for templates.
• A workaround is to access case.client.customer_name directly in the template or modify the Python logic to populate case.for_customer.

Some notes about this bug:

• this is reproduced in v2.4.20
• with a report template of type investigation
• here is a minimal template to reproduce the problem report_template.docx