feat: add full supported API details for variants and enhance tests

tests/test_compat.py

@@ -97,6 +97,17 @@ def test_hash_prefix_is_stripped_for_grouping():
     assert "333ab0c4_PIKLIB8.dll" in files
 
 
+def test_variant_carries_full_supported_api():
+    # the baseline: each variant lists *what is there*, grouped by class — not just the diff
+    t = compatibility_table([
+        Entry("Game A", _snap("X.dll", ["SHOW", "HIDE"], events=["ONCLICK"])),
+    ])
+    api = t["libraries"][0]["variants"][0]["api"]
+    assert [m["name"] for m in api["classes"]["CMC_Animo"]["methods"]] == ["HIDE", "SHOW"]
+    assert [e["name"] for e in api["classes"]["CMC_Animo"]["events"]] == ["ONCLICK"]
+    assert [t_["script_name"] for t_ in api["types"]] == ["ANIMO"]
+
+
 def test_grouping_is_case_insensitive_keeps_common_spelling():
     t = compatibility_table([
         Entry("Game A", _snap("Piklib8.dll", ["SHOW"])),