feat：纳入物料初始化脚本

scripts/ 下其余本地脚本仍被忽略，只放行 seed_materials.py，新克隆的仓库可直接导入物料目录

scripts/seed_materials.py

@@ -0,0 +1,35 @@
+"""把物料定义导入 MongoDB：uv run python -m scripts.seed_materials [物料定义目录]
+
+默认读取 app/resources/materials，导入后需重启服务生效
+"""
+
+import asyncio
+import sys
+
+from pymongo import AsyncMongoClient
+
+from app.config import settings
+from app.resources.component import MATERIALS_DIR, load_material_definitions
+from app.services.material_mongo import MongoMaterialRepository
+
+
+async def main(directory: str) -> None:
+    if not settings.mongodb_uri:
+        raise SystemExit("未配置 MONGODB_URI")
+    # 先完整校验定义，校验失败不会改动数据库
+    catalog = load_material_definitions(directory)
+    client = AsyncMongoClient(settings.mongodb_uri, serverSelectionTimeoutMS=5000)
+    try:
+        await MongoMaterialRepository(client[settings.mongodb_db]).replace_all(catalog)
+    finally:
+        await client.close()
+    print(
+        f"已导入 {len(catalog.components)} 个物料、"
+        f"{len(catalog.field_groups)} 个共享字段分组，版本 {catalog.version}"
+    )
+
+
+if __name__ == "__main__":
+    # Windows 控制台默认编码无法输出中文
+    sys.stdout.reconfigure(encoding="utf-8")
+    asyncio.run(main(sys.argv[1] if len(sys.argv) > 1 else str(MATERIALS_DIR)))