轮换 LLM 凭证与默认模型（DeepSeek → zai-org/GLM-5-FP8）

- backend/config.yaml、config.yaml 把默认模型从 deepseek-chat 切到
  zai-org/GLM-5-FP8（modal endpoint），并轮换对应 API key / Bearer
- .env 同步更新

注意：这些文件包含真实凭证，应用部署时务必通过 .env 或私有 config
覆盖，不要把仓库里的版本直接用于生产。

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

offline-backend-20260512/.env

@@ -6,7 +6,7 @@
 # host shell; values in this file are what the container will receive.
 
 # AI provider keys. Replace placeholders and rotate any test key before release.
-DEEPSEEK_API_KEY=sk-cea9133f82e24e9f939136746b05d5f8
+DEEPSEEK_API_KEY=sk-9808fb2375534112ac275541aec14b9b
 OPENAI_API_KEY=your-openai-api-key
 ANTHROPIC_API_KEY=your-anthropic-api-key
 

offline-backend-20260512/backend/config.yaml

@@ -10,12 +10,12 @@ gateway:
   port: 8001
 
 models:
-  - name: deepseek-chat
-    display_name: DeepSeek Chat
+  - name: zai-org/GLM-5-FP8
+    display_name: zai-org/GLM-5-FP8
     use: langchain_openai:ChatOpenAI
-    model: deepseek-chat
-    api_key: sk-e1c22b7931dc446f8b67e57878edd105
-    base_url: https://api.deepseek.com
+    model: zai-org/GLM-5-FP8
+    api_key: Bearer modalresearch_gWu46FDpVLYZWPVEA3b_2fq8Jw2UJiKMgEm_Rxmn1SA
+    base_url: https://api.us-west-2.modal.direct/v1
     request_timeout: 600.0
     max_retries: 2
     max_tokens: 4096

offline-backend-20260512/config.yaml

@@ -5,7 +5,7 @@ models:
   display_name: DeepSeek Chat
   use: langchain_openai:ChatOpenAI
   model: deepseek-chat
-  api_key: sk-e1c22b7931dc446f8b67e57878edd105
+  api_key: sk-9808fb2375534112ac275541aec14b9b
   base_url: https://api.deepseek.com
   request_timeout: 600.0
   max_retries: 2
@@ -13,12 +13,12 @@ models:
   temperature: 1.0
   supports_vision: true
   supports_thinking: true
-- name: deepseek-v4-flash
-  display_name: DeepSeek V4 Flash
+- name: zai-org/GLM-5-FP8
+  display_name: zai-org/GLM-5-FP8
   use: langchain_openai:ChatOpenAI
-  model: deepseek-v4-flash
-  api_key: sk-e1c22b7931dc446f8b67e57878edd105
-  base_url: https://api.deepseek.com
+  model: zai-org/GLM-5-FP8
+  api_key: modalresearch_gWu46FDpVLYZWPVEA3b_2fq8Jw2UJiKMgEm_Rxmn1SA
+  base_url: https://api.us-west-2.modal.direct/v1
   request_timeout: 600.0
   max_retries: 2
   max_tokens: 4096