Change Details

[ENG-10464](https://linear.app/comm/issue/ENG-10464/biggest-risk-handle-target-message-in-messages-table#comment-3e544d1d). In the next diff I am going to change the way `target_message` is handled. Looking at code and in history when `target_message` was introduced, it is mainly for `getRelatedMessages` query (stack ending with D12737). To be able to test it somehow, I decided to first implement detailed tests to how `target_message` is utilized - I used Claude code for this and it did suprisingly good job.

[ENG-10464](https://linear.app/comm/issue/ENG-10464/biggest-risk-handle-target-message-in-messages-table#comment-3e544d1d). In the next diff, I am going to change the way `target_message` is handled. Looking at the code and in history, when `target_message` was introduced, it was mainly for `getRelatedMessages` query (stack ending with D12737). To be able to test it somehow, I decided to first implement detailed tests on how `target_message` is utilized - I used Claude code for this, and it did a surprisingly good job.

[ENG-10464](https://linear.app/comm/issue/ENG-10464/biggest-risk-handle-target-message-in-messages-table#comment-3e544d1d). In the next diff, I am going to change the way `target_message` is handled. Looking at the code and in history, Looking at code and in history when `target_message` was introduced, it isit was mainly for `getRelatedMessages` query (stack ending with D12737). To be able to test it somehow, I decided to first implement detailed tests toon how `target_message` is utilized - I used Claude code for this, and it did sua surprisingly good job.