feat: add audio handle mapping and pass audio through video executor

Extend handleToSchemaName in getConnectedInputsPure() to map audio-0
handles to schema names, enabling audio data flow via dynamicInputs.
Update generateVideoExecutor to destructure audio from connected inputs
and allow execution when audio is the only connected input.

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

src/store/execution/generateVideoExecutor.ts

@@ -33,7 +33,7 @@ export async function executeGenerateVideo(
 
   const { useStoredFallback = false } = options;
 
-  const { images: connectedImages, text: connectedText, dynamicInputs } = getConnectedInputs(node.id);
+  const { images: connectedImages, text: connectedText, audio: connectedAudio, dynamicInputs } = getConnectedInputs(node.id);
 
   // Get fresh node data from store
   const freshNode = getFreshNode(node.id);
@@ -48,7 +48,8 @@ export async function executeGenerateVideo(
     text = connectedText ?? nodeData.inputPrompt;
     // Validate fallback inputs the same way as the regular path
     const hasPrompt = text || dynamicInputs.prompt || dynamicInputs.negative_prompt;
-    if (!hasPrompt && images.length === 0) {
+    const hasAudio = connectedAudio.length > 0;
+    if (!hasPrompt && images.length === 0 && !hasAudio) {
       updateNodeData(node.id, {
         status: "error",
         error: "Missing required inputs",
@@ -58,9 +59,10 @@ export async function executeGenerateVideo(
   } else {
     images = connectedImages;
     text = connectedText;
-    // For dynamic inputs, check if we have at least a prompt
+    // For dynamic inputs, check if we have at least a prompt, images, or audio
     const hasPrompt = text || dynamicInputs.prompt || dynamicInputs.negative_prompt;
-    if (!hasPrompt && images.length === 0) {
+    const hasAudio = connectedAudio.length > 0;
+    if (!hasPrompt && images.length === 0 && !hasAudio) {
       updateNodeData(node.id, {
         status: "error",
         error: "Missing required inputs",

src/store/utils/connectedInputs.ts

@@ -188,6 +188,7 @@ export function getConnectedInputsPure(
   if (inputSchema && inputSchema.length > 0) {
     const imageInputs = inputSchema.filter(i => i.type === "image");
     const textInputs = inputSchema.filter(i => i.type === "text");
+    const audioInputs = inputSchema.filter(i => i.type === "audio");
 
     imageInputs.forEach((input, index) => {
       handleToSchemaName[`image-${index}`] = input.name;
@@ -202,6 +203,13 @@ export function getConnectedInputsPure(
         handleToSchemaName["text"] = input.name;
       }
     });
+
+    audioInputs.forEach((input, index) => {
+      handleToSchemaName[`audio-${index}`] = input.name;
+      if (index === 0) {
+        handleToSchemaName["audio"] = input.name;
+      }
+    });
   }
 
   // Cache passthrough node results so multiple edges from the same router/switch