limit-up-board v0.18.1 — 兼容新框架严格 canonical_json（指纹 NaN/Inf/set 兜底）#2
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新框架 deeptrade.core.fingerprint.canonical_json 改严：对 NaN/Inf 抛 ValueError、 对 set/frozenset 抛 TypeError（不再自动归一）。插件 fingerprint.py 在框架可用时 直接复用框架原语，导致 build_input_fingerprint 哈希 Tushare 派生候选浮点（新股 常见 NaN）时 hash_json 直接抛错 → run 指纹计算崩溃；CI test_fingerprint 两例失败。 Fixed: - _normalize 提为模块级并在框架路径生效：插件 canonical_json 现在「先归一 (NaN/Inf→None、set→排序 list、dataclass→asdict、Mapping 键→str) 再委托框架」， 保留本模块 NaN-safe 契约，同时让框架的 datetime/Decimal/numpy/BaseModel 富类型 处理 + 版本化契约继续作为单一事实源。对 0.4.2 与 0.15.0 均兼容，全套 678 通过。 - 新增回归测试 test_input_fingerprint_survives_nan_and_inf_in_candidates。 Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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背景
新框架（
deeptrade-quant≥ 0.5，本地验证于 0.15.0）把deeptrade.core.fingerprint.canonical_json的契约改严：对NaN/Inf抛ValueError、对set/frozenset抛TypeError（不再自动归一）。插件fingerprint.py在框架可用时直接复用框架原语，导致：build_input_fingerprint会哈希 Tushare 派生的候选浮点字段（新股常见 NaN），新框架下hash_json直接抛错 → run 指纹计算崩溃（v0.18.0 在新框架上的真实 bug）。test_fingerprint.py两个断言旧"自动归一"行为的用例失败（上一轮发版后 main 一直红）。修复
fingerprint._normalize提为模块级、并在框架路径生效：插件canonical_json现在「先归一（NaN/Inf→None、set→排序 list、dataclass→asdict、Mapping 键→str）再委托框架」，既保留本模块文档化的 NaN-safe 契约，又让框架的 datetime/Decimal/numpy/BaseModel 富类型处理 + 版本化契约继续作为单一事实源。test_input_fingerprint_survives_nan_and_inf_in_candidates（直接走build_input_fingerprint的 NaN/Inf 候选路径）。验证
deeptrade-quant0.4.2 → 0.15.0；全套 678 passed；tools/check_registry.pyOK。对新旧框架均兼容。🤖 Generated with Claude Code