web-sdk: add backendPreferences to v4 ModelLoadRequest call sites

Author: Siddhesh2377

sdk/runanywhere-web/packages/core/src/Public/API/Namespaces/models.ts

@@ -320,6 +320,7 @@ export const models = {
       framework,
       forceReload: options?.forceReload ?? false,
       validateAvailability: true,
+      backendPreferences: [],
     });
     if (!result || result.error) {
       throw result?.error

sdk/runanywhere-web/packages/core/src/Public/API/Runtime/Prerequisites.ts

@@ -59,6 +59,7 @@ export async function ensureModelForCategory(
     framework: model.framework,
     forceReload: false,
     validateAvailability: true,
+    backendPreferences: [],
   });
   if (!result || result.error) {
     throw result?.error

sdk/runanywhere-web/packages/core/src/Public/Extensions/RunAnywhere+Embeddings.ts

@@ -95,6 +95,7 @@ async function ensureLoaded(modelID: string): Promise<InferenceFramework | undef
     category: ModelCategory.MODEL_CATEGORY_EMBEDDING,
     forceReload: true,
     validateAvailability: true,
+    backendPreferences: [],
   });
 
   if (!result || result.error) {

sdk/runanywhere-web/packages/core/src/Public/Extensions/RunAnywhere+RAG.ts

@@ -1397,6 +1397,7 @@ async function loadRagArtifactModel(
     ...(model?.framework !== undefined ? { framework: model.framework } : {}),
     forceReload: false,
     validateAvailability: false,
+    backendPreferences: [],
   });
   if (!result || result.error) {
     const message = result?.error?.message

sdk/runanywhere-web/packages/core/src/Public/Extensions/RunAnywhere+VoiceAgent.ts

@@ -382,6 +382,7 @@ export async function ensureDefaultVAD(modelID?: string): Promise<boolean> {
       category: ModelCategory.MODEL_CATEGORY_VOICE_ACTIVITY_DETECTION,
       forceReload: false,
       validateAvailability: false,
+      backendPreferences: [],
     });
     if (!result || result.error) {
       logger.warning(