CI #345 fixes: bud-kit mutual exclusion test → portrait viewport; carte sign-gate-brief wait → wait_for_slow

Two CI #345 failures addressed:

## test_bud_active_fades_kit_btn (test_core_bud_btn.py)

Real regression — earlier sprint scoped `html.bud-open #id_kit_btn { opacity: 0 }` to `@media (orientation: portrait)` (in `_bud.scss`) because in landscape kit_btn sits at the TOP of the right sidebar + bud_panel slides across the BOTTOM, no visual conflict. The default CI landscape viewport (1366x900) rendered the fade rule inert → the kit_btn stayed at opacity 1 → assertEqual(opacity, 0.0) failed.

Fix: `BudKitMutualExclusionTest.setUp` now resizes to portrait (800x1200) so the fade rule actually fires. Both `test_bud_active_fades_kit_btn` + `test_kit_active_fades_bud_btn` now exercise the rule in the orientation where it lives.

## test_carte_blanche_equip_and_multi_slot_gatekeeper (test_trinket_carte_blanche.py)

CI flake — the test waits up to 10s (`wait_for` default) for `.my-sea-sign-gate-brief` to appear after navigating to /gameboard/. Under CI contention the Brief's DOM-ready handler can land past 10s; CI #345 hit a NoSuchElement timeout. The screendump confirmed the Brief WAS in the DOM, just past the wait window.

Fix: bump that one wait to `wait_for_slow` (60s ceiling). Same pattern used elsewhere (Jasmine spec runner, sig select countdown).

## Verification

Both fixed tests green locally. No model / view / template touches.

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_core_bud_btn.py

@@ -247,10 +247,18 @@ class BudBtnSlideOutTest(FunctionalTest):
 
 
 class BudKitMutualExclusionTest(FunctionalTest):
-    """When kit btn is active, bud btn fades to 0 — and vice-versa."""
+    """When kit btn is active, bud btn fades to 0 — and vice-versa.
+
+    PORTRAIT-only: in landscape kit_btn sits at the TOP of the right
+    sidebar + bud_panel slides across the BOTTOM, no visual conflict, so
+    the .bud-open kit fade is `@media (orientation: portrait)`-scoped
+    (see _bud.scss). The default landscape viewport would render the
+    rule inert. Resize to portrait so the rule fires."""
 
     def setUp(self):
         super().setUp()
+        self.browser.quit()
+        self.browser = self._make_browser(800, 1200)  # portrait
         self.gamer = User.objects.create(email="bud@test.io")
         self.post = _seed_a_post(self.gamer)
         self.create_pre_authenticated_session("bud@test.io")

src/functional_tests/test_trinket_carte_blanche.py

@@ -91,7 +91,10 @@ class CarteBlancheTest(FunctionalTest):
         # version of the test had a 5+ second hover/wait at step 2 (Free
         # Token tooltip — now removed) that masked the race; without that
         # wait, we have to explicitly dismiss the banner before proceeding.
-        self.wait_for(
+        # `wait_for_slow` (60s ceiling) — under CI contention the Brief's
+        # DOM-ready handler can land past wait_for's 10s default; CI #345
+        # hit this exact NoSuchElement timeout.
+        self.wait_for_slow(
             lambda: self.browser.find_element(By.CSS_SELECTOR, ".my-sea-sign-gate-brief")
         )
         self.browser.find_element(