we (web engine): Experimental web browser project to understand the limits of Claude

Review fixes: remove redundant constant, fix UTF-8 boundary panic master

- Remove duplicate TEST_TIMEOUT_INSTRUCTIONS constant (identical to INSTRUCTION_LIMIT), use INSTRUCTION_LIMIT everywhere - Fix potential panic when truncating failure messages containing multi-byte UTF-8 characters by using floor_char_boundary Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>


+3 -6
1 changed file