Fix nondeterministic simple API package ordering

Add stable secondary ordering for project names and package filenames when generating the Python simple API.\n\nAssisted-by: AI (Codex)

Author: gerrod3

pulp_python/app/tasks/publish.py

@@ -56,11 +56,14 @@ def write_simple_api(publication):
     domain = get_domain()
     simple_dir = "simple/"
     os.mkdir(simple_dir)
+    # Secondary ORDER BY makes DISTINCT ON pick a stable display name when
+    # metadata names differ but canonicalize to the same name_normalized
+    # (e.g. msg-parser vs msg_parser).
     project_names = (
         python_models.PythonPackageContent.objects.filter(
             pk__in=publication.repository_version.content, _pulp_domain=domain
         )
-        .order_by("name_normalized")
+        .order_by("name_normalized", "name")
         .values_list("name", flat=True)
         .distinct("name_normalized")
     )
@@ -81,7 +84,7 @@ def write_simple_api(publication):
     packages = python_models.PythonPackageContent.objects.filter(
         pk__in=publication.repository_version.content, _pulp_domain=domain
     )
-    releases = packages.order_by("name_normalized").values("name", "filename", "sha256")
+    releases = packages.order_by("name_normalized", "filename").values("name", "filename", "sha256")
 
     ind = 0
     current_name = canonicalize_name(project_names[ind])