bug: Thread - Clean action - After cleaned any thread, the last message value still remain in the thread JSON data

[Van-QA]

Describe the bug The clean thread action did not actually cleanning the thread JSON data, last mesasage value still remain

Steps to reproduce Steps to reproduce the behavior:

1. Observe any thread with message
2. Attempt to clean the thread
3. Check the JSON data of the thread

Expected behavior When cleaning the thread, the last message value should also removed from the JSON data

Screenshots

Environment details Operating System: MacOS Jan Version: 0.4.3 Processor: Apple M2 Pro RAM: 16GB

[freelerobot]

@Van-QA let's walk through how to triage some of these issues tomorrow.

Increasingly, I'm dropping the ball. And was hoping you can own the Github inbound requests 🙏

Initial SOP: https://jan.ai/handbook/product/

Very changeable

[Van-QA]

tested and looking good on Jan v0.4.4-194 ✅