fix: preserve oauth refresh auth through runtime bridge

src/wf_api/auth.py

@@ -136,6 +136,32 @@ def auth_record_from_compat(
                 else {}
             )
             auth = EnvAuth(env=env)
+        case "oauth_refresh_token":
+            client_id = payload_dict.get("client_id")
+            client_secret = payload_dict.get("client_secret")
+            refresh_token = payload_dict.get("refresh_token")
+            token_url = payload_dict.get("token_url")
+            raw_scopes = payload_dict.get("scopes", ())
+            scopes = (
+                tuple(str(scope) for scope in raw_scopes)
+                if isinstance(raw_scopes, list | tuple)
+                else ()
+            )
+            if not isinstance(client_id, str) or not client_id:
+                raise ValueError("oauth_refresh_token client_id is required")
+            if not isinstance(client_secret, str):
+                raise ValueError("oauth_refresh_token client_secret is required")
+            if not isinstance(refresh_token, str) or not refresh_token:
+                raise ValueError("oauth_refresh_token refresh_token is required")
+            if not isinstance(token_url, str) or not token_url:
+                raise ValueError("oauth_refresh_token token_url is required")
+            auth = OAuthRefreshTokenAuth(
+                client_id=client_id,
+                client_secret=client_secret,
+                refresh_token=refresh_token,
+                token_url=AnyUrl(token_url),
+                scopes=scopes,
+            )
         case _:
             auth = OpaqueAuth(scheme=scheme, payload=payload_dict)
     return StoredAuthRecord(id=id, auth=auth, metadata=metadata_dict)

tests/wf_api/test_auth.py

@@ -129,3 +129,25 @@ def test_typed_auth_rejects_missing_bearer_token() -> None:
             payload={},
             metadata={},
         )
+
+
+def test_auth_record_from_compat_maps_oauth_refresh_token() -> None:
+    from wf_api.auth import OAuthRefreshTokenAuth, auth_record_from_compat
+
+    record = auth_record_from_compat(
+        id="google.drive.personal",
+        scheme="oauth_refresh_token",
+        payload={
+            "client_id": "client",
+            "client_secret": "secret",
+            "refresh_token": "refresh",
+            "token_url": "https://oauth2.googleapis.com/token",
+            "scopes": ["https://www.googleapis.com/auth/drive.readonly"],
+        },
+        metadata={"provider": "google"},
+    )
+
+    assert isinstance(record.auth, OAuthRefreshTokenAuth)
+    assert record.auth.client_id == "client"
+    assert str(record.auth.token_url) == "https://oauth2.googleapis.com/token"
+    assert record.auth.scopes == ("https://www.googleapis.com/auth/drive.readonly",)

tests/wf_sources_mcp/test_auth_storage_exports.py

@@ -171,3 +171,36 @@ def test_file_auth_store_loads_new_format_through_load_auth(tmp_path: Path) -> N
     assert legacy.connection_id == "google.drive.personal"
     assert legacy.scheme == "bearer"
     assert legacy.payload["token"] == "token"
+
+
+def test_file_auth_store_oauth_refresh_token_survives_legacy_load_auth_bridge(
+    tmp_path: Path,
+) -> None:
+    from pydantic import AnyUrl
+
+    from wf_api.auth import OAuthRefreshTokenAuth, auth_record_from_compat
+
+    store = FileAuthStore(tmp_path)
+    record = StoredAuthRecord(
+        id="google.drive.personal",
+        auth=OAuthRefreshTokenAuth(
+            client_id="client",
+            client_secret="secret",
+            refresh_token="refresh",
+            token_url=AnyUrl("https://oauth2.googleapis.com/token"),
+            scopes=("https://www.googleapis.com/auth/drive.readonly",),
+        ),
+    )
+    store.save_auth_record(record)
+
+    legacy = store.load_auth("google.drive.personal")
+    assert legacy is not None
+    restored = auth_record_from_compat(
+        id=legacy.connection_id,
+        scheme=legacy.scheme,
+        payload=legacy.payload,
+        metadata={},
+    )
+
+    assert isinstance(restored.auth, OAuthRefreshTokenAuth)
+    assert restored.auth.refresh_token == "refresh"