[codex] Prepare v0.4.1 release

[iosefa]

Summary

Prepare the v0.4.1 release branch by reconciling the published v0.4.0 release line with current main, then bumping the package version from 0.4.0 to 0.4.1.

Current main already contains PR #52, which adds add_height_above_ground(...) for calculating HeightAboveGround on already-loaded point-cloud arrays. This PR makes the next release line include that HAG work without regressing from the already-published v0.4.0 rumple release.

Changes

• Merge the existing v0.4.0 release content back into main, including the rumple metric and docs.
• Bump setup.py to 0.4.1.
• Preserve the HAG-on-loaded-arrays work already merged to main.

Validation

• python -m py_compile pyforestscan/calculate.py pyforestscan/filters.py pyforestscan/process.py pyforestscan/__init__.py setup.py
• python -m pytest tests/test_calculate.py -q passed: 54 passed, 1 warning.

Full filter tests were not run locally because the local PDAL Python binding cannot load libpdalcpp.19.dylib; CI should run those with the conda PDAL setup.

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

❌ Patch coverage is 86.11111% with 10 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
pyforestscan/process.py	28.57%	10 Missing ⚠️
❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Files with missing lines	Coverage Δ
pyforestscan/__init__.py	100.00% <ø> (ø)
pyforestscan/calculate.py	54.94% <100.00%> (+3.83%)	⬆️
tests/test_calculate.py	100.00% <100.00%> (ø)
pyforestscan/process.py	50.76% <28.57%> (-1.95%)	⬇️

🚀 New features to boost your workflow:

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