bump version to 1.0.51

Author: chengzeyi

package.json

@@ -1,6 +1,6 @@
 {
   "name": "wavespeed-desktop",
-  "version": "1.0.50",
+  "version": "1.0.51",
   "description": "WaveSpeedAI Desktop Application - A playground for AI models",
   "main": "./out/main/index.js",
   "author": {

src/pages/ModelsPage.tsx

@@ -245,7 +245,7 @@ export function ModelsPage() {
     setSelectedType
   } = useModelsStore()
   const { isLoading: isLoadingApiKey, isValidated, loadApiKey, hasAttemptedLoad } = useApiKeyStore()
-  const { createTab } = usePlaygroundStore()
+  const { createTab, tabs, setActiveTab, setSelectedModel } = usePlaygroundStore()
 
   // Load API key and fetch models on mount
   useEffect(() => {
@@ -356,9 +356,14 @@ export function ModelsPage() {
   // Memoized handlers
   const handleOpenPlayground = useCallback((modelId: string) => {
     const model = models.find(m => m.model_id === modelId)
-    createTab(model)
+    if (tabs.length === 1 && tabs[0].selectedModel == null) {
+      setActiveTab(tabs[0].id)
+      setSelectedModel(model || null)
+    } else {
+      createTab(model)
+    }
     navigate(`/playground/${encodeURIComponent(modelId)}`)
-  }, [models, createTab, navigate])
+  }, [models, tabs, setActiveTab, setSelectedModel, createTab, navigate])
 
   const handleOpenInNewTab = useCallback((e: React.MouseEvent, modelId: string) => {
     e.stopPropagation()