Add HIDE_ITEMS_LIST environment variable to hide issue/PR details table

Summary

Successfully implemented a new environment variableHIDE_ITEMS_LIST that allows users to hide the individual items table in the generated report while keeping all summary metrics visible. This addresses the feature request to provide management with only aggregated metrics without the detailed list of issues/PRs.

Implementation Checklist

• Add newhide_items_list boolean attribute toEnvVars class inconfig.py
• ReadHIDE_ITEMS_LIST environment variable inget_env_vars() function (default to False for backward compatibility)
• UpdateEnvVars.__init__() to accepthide_items_list parameter
• UpdateEnvVars.__repr__() to includehide_items_list
• Modifywrite_to_markdown() inmarkdown_writer.py to conditionally skip writing the items table whenhide_items_list is True
• Add comprehensive tests for the new functionality
• UpdateREADME.md to document the new environment variable
• Run linting and tests to validate changes
• Manually verify the implementation works correctly
• Request and address code review feedback
• Run prettier on markdown files to fix linting issues

Test Results

✅ All 135 tests pass (up from 133 - added 2 new tests)
✅ Code coverage: 91.42%
✅ Linting: 10.00/10 rating
✅ Manual testing verified correct behavior
✅ Prettier formatting applied to all markdown files

Behavior

• Default (HIDE_ITEMS_LIST=false): Shows summary metrics + count table + individual items table
• When HIDE_ITEMS_LIST=true: Shows summary metrics + count table only (items table is hidden)

Backward Compatibility

The default value isfalse, ensuring all existing workflows continue to work without any changes. Users must explicitly setHIDE_ITEMS_LIST=true to hide the items list.

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