Merge Checklist

• I have read the contribution guide
• I have added my info to copying.md (only first time contributors)
• I have run make checkmerge and fixed all mentioned problems (no local build setup; relying on CI)

Description

SemanticVersion.__lt__/__le__/__gt__/__ge__ in openage/util/version.py short-circuit on the first field that differs and return True as soon as any of major/minor/patch satisfies the relation, instead of comparing fields lexicographically. The bug:

>>> from openage.util.version import SemanticVersion as V
>>> V("1.0.0") > V("0.5.0")
False          # wrong, should be True
>>> V("2.0.0") > V("1.99.99")
False          # wrong, should be True
>>> V("1.0.0") < V("0.5.0")
True           # wrong, should be False

The only current caller is openage/convert/service/init/changelog.py:43, which uses > to decide whether a converted modpack is outdated, so this silently flipped some "up-to-date" vs "outdated" decisions.

Fix

Switch the operators to a tuple precedence key and use functools.total_ordering, so the operators agree with each other by construction. Prerelease versions now sort below the same MAJOR.MINOR.PATCH per semver 11.3. Build metadata is ignored for precedence, matching semver 10. Full identifier-by-identifier prerelease comparison (semver 11.4, i.e. alpha < beta < rc) is noted as not yet implemented; the current usage in changelog.py does not need it.

Tests

Added inline doctests covering the regression cases, and registered openage.util.version in openage/testing/testlist.py doctest_modules() so they run as part of the doctest suite.