Add zai-sdk dependency and update model references to glm-4.5-air

frontend/src/components/InputForm.tsx

@@ -26,7 +26,7 @@ export const InputForm: React.FC<InputFormProps> = ({
 }) => {
   const [internalInputValue, setInternalInputValue] = useState("");
   const [effort, setEffort] = useState("medium");
-  const [model, setModel] = useState("GLM-4.7");
+  const [model, setModel] = useState("glm-4.5-air");
 
   const handleInternalSubmit = (e?: React.FormEvent) => {
     if (e) e.preventDefault();
@@ -135,6 +135,14 @@ export const InputForm: React.FC<InputFormProps> = ({
                 <SelectValue placeholder="Model" />
               </SelectTrigger>
               <SelectContent className="bg-neutral-700 border-neutral-600 text-neutral-300 cursor-pointer">
+                <SelectItem
+                  value="glm-4.5-air"
+                  className="hover:bg-neutral-600 focus:bg-neutral-600 cursor-pointer"
+                >
+                  <div className="flex items-center">
+                    <Zap className="h-4 w-4 mr-2 text-emerald-400" /> glm-4.5-air
+                  </div>
+                </SelectItem>
                 <SelectItem
                   value="GLM-4.7"
                   className="hover:bg-neutral-600 focus:bg-neutral-600 cursor-pointer"

frontend/src/components/WelcomeScreen.tsx

@@ -33,7 +33,7 @@ export const WelcomeScreen: React.FC<WelcomeScreenProps> = ({
       />
     </div>
     <p className="text-xs text-neutral-500">
-      Powered by GLM-4.7, Tavily, and LangChain LangGraph.
+      Powered by glm-4.5-air, GLM-4.7, Tavily, and LangChain LangGraph.
     </p>
   </div>
 );