feat: 完成input_context节点

app/schemas/base.py

@@ -0,0 +1,23 @@
+"""输入协议的公共类型"""
+
+from typing import Annotated
+
+from pydantic import AfterValidator, BaseModel, ConfigDict, JsonValue
+
+
+def require_non_blank(value: str) -> str:
+    if not value.strip():
+        raise ValueError("不能为空或仅包含空白字符")
+    return value
+
+
+NonBlankString = Annotated[str, AfterValidator(require_non_blank)]
+JsonObject = dict[str, JsonValue]
+
+
+class ExtensibleModel(BaseModel):
+    """校验已知字段，保留未知 JSON 字段；不隐式转换输入类型"""
+
+    model_config = ConfigDict(extra="allow", strict=True, allow_inf_nan=False)
+
+    __pydantic_extra__: dict[str, JsonValue]