fix: make node-llama-cpp optional

src/agents/pi-embedded-helpers/google.ts

@@ -13,7 +13,6 @@ export function isAntigravityClaude(api?: string | null, modelId?: string): bool
   return modelId?.toLowerCase().includes("claude") ?? false;
 }
 
-
 export { sanitizeGoogleTurnOrdering };
 
 /**

src/agents/pi-embedded-helpers/images.ts

@@ -30,7 +30,11 @@ function isEmptyAssistantErrorMessage(
 export async function sanitizeSessionMessagesImages(
   messages: AgentMessage[],
   label: string,
-  options?: { sanitizeToolCallIds?: boolean; enforceToolCallLast?: boolean; preserveSignatures?: boolean },
+  options?: {
+    sanitizeToolCallIds?: boolean;
+    enforceToolCallLast?: boolean;
+    preserveSignatures?: boolean;
+  },
 ): Promise<AgentMessage[]> {
   // We sanitize historical session messages because Anthropic can reject a request
   // if the transcript contains oversized base64 images (see MAX_IMAGE_DIMENSION_PX).
@@ -77,8 +81,8 @@ export async function sanitizeSessionMessagesImages(
       const content = assistantMsg.content;
       if (Array.isArray(content)) {
         const strippedContent = options?.preserveSignatures
-          ? content  // Keep signatures for Antigravity Claude
-          : stripThoughtSignatures(content);  // Strip for Gemini
+          ? content // Keep signatures for Antigravity Claude
+          : stripThoughtSignatures(content); // Strip for Gemini
 
         const filteredContent = strippedContent.filter((block) => {
           if (!block || typeof block !== "object") return true;