Add KWAI comment card and update submit endpoint

Andrzej Szczepaniakrequested to merge
IamEld3st/datawarehouse:ai_comment into main

Closes: #556 (closed)

Adds AI Comment field, markdown rendering. UI is very basic for now can be improved in subsequent MRs.

KWAI Card in Test View

Screenshot_2025-10-02_at_14.43.22

Screenshot_2025-10-02_at_14.49.02

KWAI Card in Build/Checkout Views

Screenshot_2025-10-02_at_14.43.41

Screenshot_2025-10-02_at_14.44.06

Edited by Andrzej Szczepaniak

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