remove page

[motatoes]

That flag had been experimental and this page caused some confusion

[greptile-apps]

Greptile Summary

This PR removes the documentation for the "Group Plans by Source Module" feature from Digger's documentation site. The change involves completely deleting the group-plans-by-source.mdx file and removing its corresponding navigation entry from mint.json.

The removed documentation covered a feature that allowed users to configure Digger with comment_render_mode: "group_by_module" to consolidate pull request comments by grouping plans based on the source module that triggered changes. This was particularly useful for large monorepos using Terragrunt, where multiple comments per project could clutter pull requests. The feature included plan similarity detection, backend comment rendering, and plan summaries storage.

This appears to be a deliberate cleanup of deprecated or obsolete documentation. The systematic removal of both the documentation file and its navigation entry suggests the underlying feature has been deprecated, removed from the codebase, or replaced with an alternative approach. This type of documentation maintenance is common when features are no longer supported or have been superseded by better solutions.

Confidence score: 5/5

• This PR is safe to merge with minimal risk as it only removes documentation without affecting any functional code
• Score reflects straightforward documentation cleanup with no potential for breaking changes or production issues
• No files require special attention as this is purely a documentation removal

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[bismuthdev]

Bismuth completed its review and found no issues.