Merge remote-tracking branch 'origin/main' into docs/arxiv-paper-review

# Conflicts:
#	.claude/settings.json
#	docs/installation.md
#	docs/supported-signals.md
#	docs/synthid.md
#	docs/verification-plan.md
#	docs/watermarking-landscape.md
#	pyproject.toml
#	src/remove_ai_watermarks/identify.py
#	uv.lock

tests/test_packaging.py

@@ -5,19 +5,27 @@ from __future__ import annotations
 from importlib.metadata import metadata, requires
 
 from packaging.requirements import Requirement
+from packaging.specifiers import SpecifierSet
 from packaging.utils import canonicalize_name
 
 
-def _requirement_names(extra: str | None = None) -> set[str]:
+def _requirement_names(extra: str | None = None, *, python_version: str | None = None) -> set[str]:
     selected_extra = extra or ""
+    environment = {"extra": selected_extra}
+    if python_version is not None:
+        environment["python_version"] = python_version
     parsed = (Requirement(value) for value in requires("remove-ai-watermarks") or [])
     return {
         canonicalize_name(requirement.name)
         for requirement in parsed
-        if requirement.marker is None or requirement.marker.evaluate({"extra": selected_extra})
+        if requirement.marker is None or requirement.marker.evaluate(environment)
     }
 
 
+def test_supported_python_floor_is_published():
+    assert SpecifierSet(metadata("remove-ai-watermarks")["Requires-Python"]) == SpecifierSet(">=3.11,<3.15")
+
+
 def test_default_install_is_metadata_focused():
     default = _requirement_names()
 
@@ -56,6 +64,11 @@ def test_file_format_and_detector_dependencies_are_independent():
     assert "openai" in _requirement_names("verify")
 
 
+def test_trustmark_is_limited_to_its_numpy_compatible_python_range():
+    assert "trustmark" in _requirement_names("trustmark", python_version="3.12")
+    assert "trustmark" not in _requirement_names("trustmark", python_version="3.13")
+
+
 def test_extras_use_capability_names_without_legacy_aliases():
     extras = set(metadata("remove-ai-watermarks").get_all("Provides-Extra") or [])