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/crud/syndarix/issue.py

@@ -75,7 +75,9 @@ class CRUDIssue(CRUDBase[Issue, IssueCreate, IssueUpdate]):
                 .options(
                     joinedload(Issue.project),
                     joinedload(Issue.sprint),
-                    joinedload(Issue.assigned_agent).joinedload(AgentInstance.agent_type),
+                    joinedload(Issue.assigned_agent).joinedload(
+                        AgentInstance.agent_type
+                    ),
                 )
                 .where(Issue.id == issue_id)
             )
@@ -449,9 +451,7 @@ class CRUDIssue(CRUDBase[Issue, IssueCreate, IssueUpdate]):
             from sqlalchemy import update
 
             result = await db.execute(
-                update(Issue)
-                .where(Issue.sprint_id == sprint_id)
-                .values(sprint_id=None)
+                update(Issue).where(Issue.sprint_id == sprint_id).values(sprint_id=None)
             )
             await db.commit()
             return result.rowcount