fix: show Veo model parameters (aspect ratio, quality, duration)

Veo models were excluded from ModelParameters rendering, hiding their
configurable properties. Remove the isVeoModel() guard so Veo models
display parameters like all other providers.

Closes #106

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/components/nodes/GenerateVideoNode.tsx

@@ -396,7 +396,7 @@ export function GenerateVideoNode({ id, data, selected }: NodeProps<GenerateVide
           nodeId={id}
         >
           {/* External provider parameters - reuse ModelParameters component */}
-          {nodeData.selectedModel?.modelId && !isVeoModel(nodeData.selectedModel.modelId) && (
+          {nodeData.selectedModel?.modelId && (
             <ModelParameters
               modelId={nodeData.selectedModel.modelId}
               provider={currentProvider}
@@ -779,7 +779,7 @@ export function GenerateVideoNode({ id, data, selected }: NodeProps<GenerateVide
     </BaseNode>
 
     {/* Hidden ModelParameters — only for schema-loading side effect (dynamic handles) when inline disabled */}
-    {!inlineParametersEnabled && nodeData.selectedModel?.modelId && !isVeoModel(nodeData.selectedModel.modelId) && (
+    {!inlineParametersEnabled && nodeData.selectedModel?.modelId && (
       <div className="hidden">
         <ModelParameters
           modelId={nodeData.selectedModel.modelId}