chore: 接入 LiteLLM 模型并更新轻量代理配置

opencode.json

@@ -34,6 +34,34 @@
           "limit": { "context": 400000, "input": 272000, "output": 128000 }
         }
       }
+    },
+    "litellm": {
+      "name": "LiteLLM",
+      "npm": "@ai-sdk/openai-compatible",
+      "options": {
+        "baseURL": "{env:LITELLM_BASE_URL}/v1",
+        "apiKey": "{env:LITELLM_API_KEY}"
+      },
+      "models": {
+        "glm-5": {
+          "name": "GLM-5",
+          "reasoning": true,
+          "modalities": { "input": ["text"], "output": ["text"] },
+          "limit": { "context": 204800, "output": 131072 }
+        },
+        "kimi-k2.5": {
+          "name": "Kimi K2.5",
+          "reasoning": true,
+          "modalities": { "input": ["text", "image", "video"], "output": ["text"] },
+          "limit": { "context": 262144, "output": 262144 }
+        },
+        "minimax-m2.5": {
+          "name": "MiniMax M2.5",
+          "reasoning": true,
+          "modalities": { "input": ["text"], "output": ["text"] },
+          "limit": { "context": 204800, "output": 131072 }
+        }
+      }
     }
   }
 }