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- ars_opd/configs.py: 冻结 dataclass,机器路径无默认强制显式传入; 双预算/enable_thinking/lr 差异均按 §7 规范标注 - __post_init__ 构造即校验,防"completion 预算为零→loss 恒 0"静默空训练 - tests/test_configs.py: 6 个校验测试 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>