Tethoq 0.1.7

Failed agent tool steps now keep their normal action icon in grey and identify the result clearly, such as “Edit failed” or “Run failed.” Expand a step to read its original error details. Tethoq's app-level error styling is unchanged.

Validated with desktop typechecking, 102 composer checks, packaged smoke tests, and visual checks of failed edits, reads, and commands, including keyboard access to their details.