feat(market): 新增市场模块 API 路由

新增 /web/admin/my-material-usages 接口，获取当前用户的物料领用记录。
路由前缀 /web/admin，标签为"市场"。

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/app/api/__init__.py

@@ -30,6 +30,7 @@ from app.api.outbound_release_review import router as outbound_release_review_ro
 from app.api.clinical_payment import router as clinical_payment_router
 from app.api.env_detect import router as env_detect_router
 from app.api.cleanroom_garment import router as cleanroom_garment_router
+from app.api.market import router as market_router
 
 __all__ = [
     "public_router",
@@ -63,4 +64,5 @@ __all__ = [
     "clinical_payment_router",
     "env_detect_router",
     "cleanroom_garment_router",
+    "market_router",
 ]