1e18e6a9e1
- Added automatic healing of malformed JSON with single-character bracket errors at the end of strings, improving LLM tool argument parsing robustness. - Implemented tryHealMalformedJson() function to correct common LLM mistakes like misplaced or extra brackets via single-character edits. - Added 3 test cases covering bracket healing scenarios: extra bracket, wrong bracket type, and deeply broken JSON rejection.