dify_plugin - in AgentModelConfig.history_prompt_messages adding send time or id for ordering or identity

[Pandaaaa906]

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1. Is this request related to a challenge you're experiencing? Tell me about your story.

i'm devoloping a strategy plugin,
i will store extra information for certain history message, using

self.session.storage.set(conversation_id, [msg1_extra, msg2_extra, msg3_extra, ...])

but history message doesn't have id or datetime,
i just have two irrelevance list

2. Additional context or comments

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3. Can you help us with this feature?

• I am interested in contributing to this feature.