chore(backend): standardize multiline formatting across modules

Reformatted multiline function calls, object definitions, and queries for improved code readability and consistency. Adjusted imports and constraints where necessary.

backend/app/services/event_bus.py

@@ -54,22 +54,18 @@ class EventBusError(Exception):
     """Base exception for EventBus errors."""
 
 
-
 class EventBusConnectionError(EventBusError):
     """Raised when connection to Redis fails."""
 
 
-
 class EventBusPublishError(EventBusError):
     """Raised when publishing an event fails."""
 
 
-
 class EventBusSubscriptionError(EventBusError):
     """Raised when subscribing to channels fails."""
 
 
-
 class EventBus:
     """
     EventBus for Redis Pub/Sub communication.

backend/app/services/oauth_service.py

@@ -343,7 +343,9 @@ class OAuthService:
                 await oauth_account.update_tokens(
                     db,
                     account=existing_oauth,
-                    access_token_encrypted=token.get("access_token"),                    refresh_token_encrypted=token.get("refresh_token"),                    token_expires_at=datetime.now(UTC)
+                    access_token_encrypted=token.get("access_token"),
+                    refresh_token_encrypted=token.get("refresh_token"),
+                    token_expires_at=datetime.now(UTC)
                     + timedelta(seconds=token.get("expires_in", 3600)),
                 )
 
@@ -375,7 +377,9 @@ class OAuthService:
                 provider=provider,
                 provider_user_id=provider_user_id,
                 provider_email=provider_email,
-                access_token_encrypted=token.get("access_token"),                refresh_token_encrypted=token.get("refresh_token"),                token_expires_at=datetime.now(UTC)
+                access_token_encrypted=token.get("access_token"),
+                refresh_token_encrypted=token.get("refresh_token"),
+                token_expires_at=datetime.now(UTC)
                 + timedelta(seconds=token.get("expires_in", 3600))
                 if token.get("expires_in")
                 else None,
@@ -644,7 +648,9 @@ class OAuthService:
             provider=provider,
             provider_user_id=provider_user_id,
             provider_email=email,
-            access_token_encrypted=token.get("access_token"),            refresh_token_encrypted=token.get("refresh_token"),            token_expires_at=datetime.now(UTC)
+            access_token_encrypted=token.get("access_token"),
+            refresh_token_encrypted=token.get("refresh_token"),
+            token_expires_at=datetime.now(UTC)
             + timedelta(seconds=token.get("expires_in", 3600))
             if token.get("expires_in")
             else None,