Route color through the Outputter instead of mutating colorama globals

[sylvesterkaczmarek]

Closes #366.

Description

Keep colors and ANSI width compensation on each Outputter, route section headings through that palette, and remove global colorama mutation. Use a per-write console wrapper so terminal conversion and redirected-output stripping do not replace the caller's standard streams.

Local test steps

• pytest: 60 passed, 1 authenticated integration test deselected.
• Ruff checks and formatting passed for changed Python files; git diff --check passed.
• New regressions cover interleaved and threaded outputters, explicit ANSI input, exception cleanup, and unchanged standard streams. The five initial color-isolation regressions failed before the fix.

Overview of integration done

Existing CLI pseudo-terminal and alignment tests, text/CSV/Excel golden-file tests, and the offline ATL06 comparison passed unchanged. Live Earthdata and Windows-console testing were not run.

PR Acceptance Checklist

• Unit tests added/updated and passing.
• Integration testing with local CLI and committed fixtures.
• CHANGELOG.md updated.
• Documentation reviewed; no user-facing API or option change.

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📚 Documentation preview 📚: https://ncompare--369.org.readthedocs.build/en/369/

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.08%. Comparing base (c2a18b4) to head (bf42531).
⚠️ Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #369      +/-   ##
===========================================
+ Coverage    96.95%   97.08%   +0.12%     
===========================================
  Files            9        9              
  Lines          591      583       -8     
===========================================
- Hits           573      566       -7     
+ Misses          18       17       -1     

Flag	Coverage Δ
python-3.11	97.08% <100.00%> (+0.12%)	⬆️
python-3.12	97.08% <100.00%> (+0.12%)	⬆️
python-3.13	97.08% <100.00%> (+0.12%)	⬆️
python-3.14	97.05% <100.00%> (+0.13%)	⬆️

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