* 🧪 test: Add mapping tests for ChatMessageEntity to/from ChatMessage
* Added comprehensive tests to `ChatMessageMapperTest.kt` verifying the pure mappings between Room database entities (`ChatMessageEntity`) and UI models (`ChatMessage`).
* Verified fallback logics for enums (MessageRole and ToolStatus).
* Ensures regression prevention when underlying data models change.
* 🧪 test: Refactor mapper boolean assertions to assertTrue/assertFalse
* Changed assertEquals(true/false, isStreaming) to assertTrue/assertFalse
as suggested in the review.
M57
d3836ace7f