feat: make extract input structured

src/ingestion/llm-extractor.ts

@@ -15,25 +15,10 @@ export class LlmFactExtractor implements FactExtractor {
   constructor(private readonly options: LlmFactExtractorOptions) {}
 
   async extract(input: string): Promise<ExtractedFact> {
-    const prompt = this.buildPrompt(input);
-    return this.options.model.generateText(prompt);
-  }
-
-  private buildPrompt(input: string): string {
-    if (this.options.promptBuilder) {
-      return this.options.promptBuilder(input, this.options.instructions);
-    }
-
-    const instructions = this.options.instructions?.trim();
-
-    return [
-      DEFAULT_INSTRUCTIONS,
-      instructions && instructions.length > 0
-        ? `Additional instructions:\n${instructions}`
-        : null,
-      `Input:\n${input.trim()}`,
-    ]
-      .filter((value): value is string => value !== null)
-      .join("\n\n");
+    return this.options.model.generateText({
+      instruction: DEFAULT_INSTRUCTIONS,
+      input,
+      additionalInstruction: this.options.additionalInstructions,
+    });
   }
 }