fix(test): pin tag_kind enum test to the post-0023 set (meta + rating removed)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

tests/test_migration_0002.py

@@ -25,6 +25,10 @@ def test_tag_has_kind_and_fandom_id():
 
 
 def test_tag_kind_enum_values():
+    # Current TagKind enum after alembic 0023 dropped meta + rating
+    # (operator-retired 2026-05-26). `artist` is still in the enum
+    # for backward-compat with historical rows, though new artist
+    # tags don't get created (Artist row is canonical per FC-2d-vii-c).
     expected = {
         "artist",
         "character",
@@ -33,8 +37,6 @@ def test_tag_kind_enum_values():
         "series",
         "archive",
         "post",
-        "meta",
-        "rating",
     }
     assert {k.value for k in TagKind} == expected