feat(fc3b): migration 0011 — credential schema aligned with GS wire fields

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

tests/test_migration_0011.py

@@ -0,0 +1,32 @@
+import pytest
+from sqlalchemy import inspect, text
+
+pytestmark = pytest.mark.integration
+
+
+@pytest.mark.asyncio
+async def test_credential_has_credential_type_not_kind(db):
+    cols = (await db.run_sync(
+        lambda sync_session: [c["name"] for c in inspect(sync_session.bind).get_columns("credential")]
+    ))
+    assert "credential_type" in cols
+    assert "kind" not in cols
+    assert "status" not in cols
+    assert "last_verified" in cols
+
+
+@pytest.mark.asyncio
+async def test_credential_round_trip(db):
+    from backend.app.models import Credential
+
+    db.add(Credential(
+        platform="patreon",
+        credential_type="cookies",
+        encrypted_blob=b"\x00\x01\x02",
+    ))
+    await db.flush()
+    row = (await db.execute(
+        text("SELECT credential_type, last_verified FROM credential WHERE platform='patreon'")
+    )).one()
+    assert row.credential_type == "cookies"
+    assert row.last_verified is None