feat(backend): add sample-payments list and detail read APIs

Support per-sample payment overview for the standalone payment-info menu.

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

backend/app/api/protocol_sample_payment.py

@@ -185,6 +185,65 @@ def _save_sample_payments(
     return psp_svc.get_sample_payments_bundle(db, protocol_id, tenant_no)
 
 
+@router.get("/sample-payments")
+async def list_sample_payments(
+    page: int = Query(1, ge=1),
+    page_size: int = Query(10, ge=1, le=100, alias="pageSize"),
+    keyword: Optional[str] = None,
+    payMode: Optional[str] = Query(None, alias="payMode"),
+    progressStatus: Optional[str] = Query(None, alias="progressStatus"),
+    installmentDueDateStart: Optional[str] = Query(None, alias="installmentDueDateStart"),
+    installmentDueDateEnd: Optional[str] = Query(None, alias="installmentDueDateEnd"),
+    user: dict = Depends(require_admin_or_super_admin),
+    db: Session = Depends(get_db),
+):
+    """按样本缴费方案分页列表（独立缴费信息菜单）。"""
+    try:
+        tenant_no = _get_tenant_no(db, user)
+        items, total = psp_svc.list_sample_payments_page(
+            db,
+            tenant_no=tenant_no,
+            keyword=keyword,
+            pay_mode=payMode,
+            progress_status=progressStatus,
+            due_date_start=installmentDueDateStart,
+            due_date_end=installmentDueDateEnd,
+            page=page,
+            page_size=page_size,
+            user_info=user,
+        )
+        return success_response(
+            {"list": items, "total": total, "page": page, "pageSize": page_size}
+        )
+    except PermissionError as e:
+        return error_response(403, str(e))
+    except ValueError as e:
+        return error_response(400, str(e))
+
+
+@router.get("/sample-payments/{sample_payment_id}")
+async def get_sample_payment(
+    sample_payment_id: str,
+    user: dict = Depends(require_admin_or_super_admin),
+    db: Session = Depends(get_db),
+):
+    try:
+        tenant_no = _get_tenant_no(db, user)
+        data = psp_svc.get_sample_payment_detail(
+            db,
+            sample_payment_id=sample_payment_id,
+            tenant_no=tenant_no,
+            user_info=user,
+        )
+        if not data:
+            return error_response(403, "无权查看或记录不存在")
+        return success_response(data)
+    except PermissionError as e:
+        return error_response(403, str(e))
+    except ValueError as e:
+        return error_response(400, str(e))
+
+
 @router.get("/collection-protocols/{protocol_id}/sample-payments")
 async def get_sample_payments(
     protocol_id: str,