fix CI FT regression: My Sign + My Sea setUpClass ContentType collision — pipeline #313

Sprint 4a-cont (400762c) + 4b (cd0add1) introduced `serialized_rollback = True` on `MySignPickerTest`, `MySignBackupDeckTest`, and `MySeaSignGateTest` to keep migration-seeded `DeckVariant` + `TarotCard` rows alive across TransactionTestCase flushes. Locally each file ran clean, but in the full pipeline #313 `test-FTs-non-room` stage all three classes errored in setUpClass:

  django.db.utils.IntegrityError: UNIQUE constraint failed:
  django_content_type.app_label, django_content_type.model

Mechanism: every prior `TransactionTestCase`-derived class in the bucket flushed without `inhibit_post_migrate`, so Django's post-migrate signal recreated `django_content_type` rows. When these three classes hit `_fixture_setup` & tried to deserialize the saved DB snapshot, the inserts collided on `(app_label, model)`. No serialized rollback ⇒ no collision; mixing in the same DB run is the trap.

Fix: drop `serialized_rollback = True` from all 3 classes & inline-reseed via `get_or_create` per the canonical pattern already used by [test_admin_tarot.py](src/functional_tests/test_admin_tarot.py) & [room_page.py](src/functional_tests/room_page.py) (see [[feedback_transactiontestcase_flush]]) — new `_seed_earthman_sig_pile()` module-level helper in each file restores `DeckVariant(slug='earthman')` + the 16 MIDDLE court cards (Maid/Jack/Queen/King × BRANDS/CROWNS/BLADES/GRAILS) that `personal_sig_cards(user)` returns.

Adjacent bug uncovered once the snapshot reload was gone: [test_game_my_sea.py](src/functional_tests/test_game_my_sea.py) `_seed_gameboard_applets` had been seeding `my-palette` w. `context='gameboard'` — but `my-palette` is not a gameboard applet (it's a dashboard slug; the real palette applet is `palette` per migration 0003). The applets template iterates every applet & includes `apps/<context>/_partials/_applet-<slug>.html`, so seeding the bogus row made /gameboard/ try to load a partial that doesn't exist → TemplateDoesNotExist 500 → `#id_applet_my_sea` never rendered. `serialized_rollback = True` had been masking this because the snapshot restored the migration-correct applet rows (which never had my-palette as a gameboard entry to begin with). Swapped `my-palette` for the real `new-game` gameboard applet & corrected grid-cols/rows on `game-kit` to match the 0003 seed (4×3, not 4×6).

Tests: full sweep across all three classes runs green locally (17/17 in 142s).

Code architected by Disco DeDisco <discodedisco@outlook.com>
Git commit message Co-Authored-By:
Claude Sonnet 4.6 <noreply@anthropic.com>

src/functional_tests/test_game_my_sea.py

@@ -10,17 +10,19 @@ from selenium.webdriver.common.by import By
 
 from .base import FunctionalTest
 from apps.applets.models import Applet
-from apps.epic.models import personal_sig_cards
+from apps.epic.models import DeckVariant, TarotCard, personal_sig_cards
 from apps.lyric.models import User
 
 
 def _seed_gameboard_applets():
     """My Sea + the rest of the gameboard applets so /gameboard/ renders
-    without missing-applet errors during the applet-side assertions."""
+    without missing-applet errors during the applet-side assertions.
+    Mirrors the migration seed (0003 + 0008) — every slug must have a
+    matching _applet-<slug>.html partial under apps/gameboard/_partials/."""
     for slug, name, cols, rows, ctx in [
         ("my-sea", "My Sea", 12, 4, "gameboard"),
-        ("game-kit", "Game Kit", 4, 6, "gameboard"),
-        ("my-palette", "My Palette", 4, 4, "gameboard"),
+        ("game-kit", "Game Kit", 4, 3, "gameboard"),
+        ("new-game", "New Game", 4, 3, "gameboard"),
         ("my-games", "My Games", 4, 4, "gameboard"),
     ]:
         Applet.objects.get_or_create(
@@ -30,15 +32,37 @@ def _seed_gameboard_applets():
         )
 
 
+def _seed_earthman_sig_pile():
+    """Re-seed Earthman DeckVariant + the 16 MIDDLE court cards that
+    personal_sig_cards() returns. TransactionTestCase flushes wipe the
+    migration seed between tests, so each setUp must restore them.
+    See [[feedback_transactiontestcase_flush]]."""
+    earthman, _ = DeckVariant.objects.get_or_create(
+        slug="earthman",
+        defaults={"name": "Earthman", "card_count": 106, "is_default": True},
+    )
+    _NAME = {11: "Maid", 12: "Jack", 13: "Queen", 14: "King"}
+    for suit in ("BRANDS", "CROWNS", "BLADES", "GRAILS"):
+        for number in (11, 12, 13, 14):
+            TarotCard.objects.get_or_create(
+                deck_variant=earthman,
+                slug=f"{_NAME[number].lower()}-of-{suit.lower()}-em",
+                defaults={"arcana": "MIDDLE", "suit": suit, "number": number,
+                          "name": f"{_NAME[number]} of {suit.capitalize()}",
+                          "levity_qualifier": "Elevated",
+                          "gravity_qualifier": "Graven"},
+            )
+    return earthman
+
+
 class MySeaSignGateTest(FunctionalTest):
     """Sign-gate UX on the standalone /gameboard/my-sea/ page + the
     /gameboard/ My Sea applet. User without a saved sig sees a Look!-
     formatted nudge w. FYI to the picker + BACK to the gameboard."""
 
-    serialized_rollback = True
-
     def setUp(self):
         super().setUp()
+        _seed_earthman_sig_pile()
         _seed_gameboard_applets()
         self.email = "sea@test.io"
         self.gamer = User.objects.create(email=self.email)