fix(client): new_memories_with_actions maybe a list or a dict

[outyua]

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Fixes # (issue)

new_memories_with_actions variable in Memory._add_to_vector_store returns a list or a dict, when it returns a list, for resp in new_memories_with_actions["memory"]: block will report an error: ERROR:root:Error in new_memories_with_actions: list indices must be integers or slices, not str

some contexts:

I use qwen-turbo as LLM, and a custom openai_base_url: https://dashscope.aliyuncs.com/compatible-mode/v1

Type of change

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• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

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• Test Script (please provide)

message = "I want to eat an apple"
client.add(
    messages=message,
    user_id="user1",
    agent_id="agent1",
)

# until now is correct

message = "I want to eat an apple"
client.add(
    messages=message,
    user_id="user1",
    agent_id="agent1",
)

# expect to add a memory or update the above memory
# but it reports the error, and no memory changes
# debug in `_add_to_vector_store`, the variable `new_memories_with_actions` is a list, so the error occurs

BTW:
There has another way to fix is to change the prompt, maybe that will be a better patch

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• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
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