Fix: judge retrieval from (#12223)

### What problem does this PR solve?

Judge retrieval from in retrieval component, and fix bug in message
component

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

api/db/joint_services/memory_message_service.py

@@ -231,3 +231,8 @@ def init_memory_size_cache():
             memory_size = memory_size_map.get(memory.id, 0)
             set_memory_size_cache(memory.id, memory_size)
         logging.info("Memory size cache init done.")
+
+
+def judge_system_prompt_is_default(system_prompt: str, memory_type: int|list[str]):
+    memory_type_list = memory_type if isinstance(memory_type, list) else get_memory_type_human(memory_type)
+    return system_prompt == PromptAssembler.assemble_system_prompt({"memory_type": memory_type_list})