feat: add prompt startup actions and shared vision config

frontend/src/components/pages/AssistantPage.tsx

@@ -177,6 +177,7 @@ function blankPromptForm(name: string): AssistantForm {
     knowledgeRetrievalConfig: defaultKnowledgeRetrievalConfig(),
     enableInterrupt: true,
     turnConfig: defaultTurnConfig(),
+    startup: { executionMode: "sequential", actions: [] },
     visionEnabled: false,
     visionModelResourceId: "",
     toolIds: [],
@@ -409,7 +410,7 @@ export function AssistantPage(props: AssistantPageProps) {
           resource.interfaceType === interfaceType,
       )
       .map((resource) => ({ value: resource.id, label: resource.name }));
-  const visionModelOptionsFor = (currentModelId: string) => modelResources
+  const visionModelOptionsFor = (currentModelId?: string) => modelResources
     .filter(
       (c) =>
         c.capability === "LLM" &&
@@ -465,6 +466,7 @@ export function AssistantPage(props: AssistantPageProps) {
         a.knowledgeRetrievalConfig ?? defaultKnowledgeRetrievalConfig(),
       enableInterrupt: a.enableInterrupt,
       turnConfig: normalizeTurnConfig(a.turnConfig),
+      startup: a.startup ?? { executionMode: "sequential", actions: [] },
       visionEnabled: a.visionEnabled,
       visionModelResourceId: a.visionModelResourceId ?? "",
       toolIds: a.toolIds ?? [],
@@ -534,6 +536,7 @@ export function AssistantPage(props: AssistantPageProps) {
       greeting: "",
       enableInterrupt: true,
       turnConfig: defaultTurnConfig(),
+      startup: { executionMode: "sequential", actions: [] },
       visionEnabled: false,
       visionModelResourceId: null,
       modelResourceIds: {},
@@ -592,6 +595,7 @@ export function AssistantPage(props: AssistantPageProps) {
         greeting: form.greeting,
         enableInterrupt: form.enableInterrupt,
         turnConfig: form.turnConfig,
+        startup: form.startup,
         visionEnabled: form.visionEnabled,
         visionModelResourceId: form.visionModelResourceId || null,
         modelResourceIds: {
@@ -1558,7 +1562,7 @@ export function AssistantPage(props: AssistantPageProps) {
       asrOptions={credOptions("ASR")}
       ttsOptions={credOptions("TTS")}
       realtimeOptions={credOptions("Realtime")}
-      visionModelOptions={visionModelOptionsFor(form.model)}
+      visionModelOptions={visionModelOptionsFor()}
       knowledgeOptions={kbOptions}
       tools={tools}
       onBack={() => router.push("/assistants")}