feat: add ticket solution closure loop

backend/apps/solutions/schemas.py

@@ -42,3 +42,12 @@ class TicketSolutionLinkOut(Schema):
     link_type: str
     solution_usage_count: int
     created_at: datetime
+
+
+class TicketSolutionOut(Schema):
+    id: int
+    ticket_id: int
+    solution_id: int
+    link_type: str
+    solution: SolutionOut
+    created_at: datetime