fix(backend): API 文本输入加 max_length + 请求体大小中间件(CR-H9)
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@@ -7,15 +7,26 @@ snake_case(命名契约,见 memory/gotchas)。前端经 OpenAPI→TS 客
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from __future__ import annotations
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import uuid
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from typing import Literal
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from typing import Annotated, Literal
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from pydantic import BaseModel, Field
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from pydantic import BaseModel, Field, StringConstraints
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# 请求文本长度上界(CR-H9:防超长入参空跑 LLM/DoS)。选段/样本 20k 字符,样本列表 ≤20 条。
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_SEGMENT_MAX = 20_000
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_SAMPLE_MAX = 20_000
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_SAMPLES_LIST_MAX = 20
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# 预检澄清沿用相同选段上界(DRY);指令短。
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_MAX_CLARIFY_SEGMENT_LEN = _SEGMENT_MAX
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_MAX_CLARIFY_INSTRUCTION_LEN = 2000
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class StyleLearnRequest(BaseModel):
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"""学文风:上传样本正文(前端可读文件转文本)+ 模式(首学 / 更新)。"""
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samples: list[str] = Field(min_length=1)
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# 同时约束**列表条数**与**每条样本长度**(最大 DoS 面:多条超长正文)。
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samples: list[Annotated[str, StringConstraints(max_length=_SAMPLE_MAX)]] = Field(
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min_length=1, max_length=_SAMPLES_LIST_MAX
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)
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mode: Literal["create", "update"] = "create"
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@@ -47,7 +58,7 @@ class StyleFingerprintResponse(BaseModel):
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class RefineRequest(BaseModel):
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"""回炉:重写选中段(可选改写指令)。"""
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segment: str = Field(min_length=1)
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segment: str = Field(min_length=1, max_length=_SEGMENT_MAX)
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instruction: str | None = None
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@@ -58,11 +69,6 @@ class RefineResponse(BaseModel):
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refined: str
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# 上界:选段/意见文本长度守卫(防超长入参空跑 LLM;预检只看本段,无需整章)。
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_MAX_CLARIFY_SEGMENT_LEN = 20000
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_MAX_CLARIFY_INSTRUCTION_LEN = 2000
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class RefineClarifyRequest(BaseModel):
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"""润色预检澄清:选段 + 再沟通意见(WFW-9 M1 路线A 两阶段之「问题」阶段)。
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