feat: initial commit and ignore qwen files

backend/app/schemas/deduce_bom.py

@@ -0,0 +1,28 @@
+"""齐套性推演接口 Schema"""
+from pydantic import BaseModel, Field
+from decimal import Decimal
+
+
+class MaterialRequirementItem(BaseModel):
+    """物料需求项"""
+    material_id: int = Field(alias="base_id")
+    material_name: str
+    spec_model: str | None
+    unit: str | None
+    required_quantity: Decimal = Field(ge=0)
+    current_stock: Decimal = Field(default=Decimal("0"))
+    shortage_quantity: Decimal = Field(ge=0)
+    is_shortage: bool
+
+    class Config:
+        from_attributes = True
+        populate_by_name = True
+
+
+class DeduceBomResponse(BaseModel):
+    """齐套性推演响应"""
+    target_base_id: int
+    target_quantity: int
+    is_shortage: bool
+    total_shortage_count: int
+    material_requirements: list[MaterialRequirementItem]