Add no-thinking varient of GLM 4.7 as workaround for OpenCode bug (due to Cerebras update)

opencode/.config/opencode/opencode.jsonc

@@ -10,6 +10,18 @@
     "lmstudio"
   ],
   "provider": {
+    "cerebras": {
+      "models": {
+        "zai-glm-4.7": {
+          "name": "GLM 4.7",
+          "variants": {
+            "Thinking Disabled": {
+              "reasoningEffort": "none",
+            }
+          }
+        }
+      }
+    },
     "lmstudio": {
       "npm": "@ai-sdk/openai-compatible",
       "name": "LM Studio (local)",