Fix lints in report.htest.R by renaming conflicting variables

[Copilot]

This PR resolves all linting issues in R/report.htest.R by addressing object_overwrite_linter warnings about variable names that conflict with exported objects from base R packages.

The following variable names were renamed throughout the file to avoid conflicts:

• table → tbl (conflicts with base::table)
• text → txt (conflicts with graphics::text)
• args → call_args (conflicts with base::args)

These changes affect multiple functions in the file:

• report.htest()
• report_table.htest()
• report_statistics.htest()
• report_parameters.htest()
• report_model.htest()
• report_info.htest()
• report_text.htest()

All functionality remains unchanged - the package builds successfully and all existing tests for htest functionality continue to pass. The file now has zero linting issues while maintaining full backward compatibility.

Fixes #564.

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[codecov]

Codecov Report

❌ Patch coverage is 90.90909% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 72.25%. Comparing base (58c7492) to head (f7607a3).
⚠️ Report is 61 commits behind head on main.

Files with missing lines	Patch %	Lines
R/report.htest.R	90.90%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #565      +/-   ##
==========================================
- Coverage   72.36%   72.25%   -0.12%     
==========================================
  Files          54       54              
  Lines        3684     3892     +208     
==========================================
+ Hits         2666     2812     +146     
- Misses       1018     1080      +62     

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[codecov]

Codecov Report

❌ Patch coverage is 90.90909% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 72.25%. Comparing base (58c7492) to head (f7607a3).
⚠️ Report is 62 commits behind head on main.

Files with missing lines	Patch %	Lines
R/report.htest.R	90.90%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #565      +/-   ##
==========================================
- Coverage   72.36%   72.25%   -0.12%     
==========================================
  Files          54       54              
  Lines        3684     3892     +208     
==========================================
+ Hits         2666     2812     +146     
- Misses       1018     1080      +62     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.