chore: 配置新增 qwen3.8-flash 模型

offline-backend-20260512/backend/config.yaml

@@ -33,6 +33,18 @@ concurrency:
     fail_open: true
 
 models: 
+- name: qwen3.8-flash
+  display_name: qwen3.8-flash
+  use: langchain_openai:ChatOpenAI
+  model: qwen3.8-flash
+  api_key: sk-sp-H.XDIPL.Zgvs.MEQCIBasaS2RPHwgNUpGVfFJeRaTp5UgmZ4Y2rCVGNtpwfD1AiBTFg3S-uE_gqVDnHgdyEhDwcfaVRLi92xviye80AZnkg
+  base_url: https://token-plan.cn-beijing.maas.aliyuncs.com/compatible-mode/v1
+  request_timeout: 30.0
+  max_retries: 2
+  stream_usage: true
+  supports_thinking: false
+  supports_reasoning_effort: false
+  supports_vision: false
 - name: qwen3.6
   display_name: qwen3.6
   use: langchain_openai:ChatOpenAI