- Added `repairDoubleEncodedJsonString` to unescape fields double-encoded by the model (e.g. literal `\n`, `\"`, `\uXXXX` in `context`/`assignment`/`description`).
- Scoped repair to natural-language fields only, leaving code-bearing tools untouched.
- Applied repair on both render and execution paths in `TaskTool`.
can1357
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