GRM-53: refactor: enforce script separation and document import rules

tests/unit/test_doc_coverage.py

@@ -78,7 +78,8 @@ class TestMain:
         (docs / "tech" / "ci-cd-workflow.md").write_text(
             "auto_merge.py release.py publish.py review_pr.py "
             "notify_failure.py post_merge.py classify_changes.py discover_runners.py "
-            "detect_release_commit.py push_badges.py"
+            "detect_release_commit.py push_badges.py "
+            "distribute_molecule.py molecule_ci_guard.py validate_commit_msg.py"
         )
         runner = CliRunner()
         result = runner.invoke(main, ["--docs-dir", str(docs)])

tests/unit/test_platforms.py

@@ -0,0 +1,25 @@
+"""Unit tests for scripts/ci/platforms.py."""
+
+from scripts.ci.platforms import PLATFORMS
+
+
+class TestPlatforms:
+    def test_platforms_not_empty(self) -> None:
+        assert len(PLATFORMS) >= 4
+
+    def test_each_platform_has_required_keys(self) -> None:
+        for p in PLATFORMS:
+            assert "name" in p
+            assert "image" in p
+            assert "command" in p
+
+    def test_platform_names_unique(self) -> None:
+        names = [p["name"] for p in PLATFORMS]
+        assert len(names) == len(set(names))
+
+    def test_known_platforms_present(self) -> None:
+        names = {p["name"] for p in PLATFORMS}
+        assert "ubuntu-2204" in names
+        assert "ubuntu-2404" in names
+        assert "debian-12" in names
+        assert "archlinux" in names