VIBN Frontend for Coolify deployment

lib/types/extraction-output.ts

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+/**
+ * Backend Extraction Output Types
+ * 
+ * These types define the structured JSON returned by the backend extractor.
+ * Used ONLY by backend extraction, not by chat.
+ */
+
+// Structured item returned by Gemini for each category
+export interface StructuredExtractedItem {
+  id?: string;
+  sourceText: string;
+  label?: string;
+  description?: string;
+  confidence: number;
+  importance: "primary" | "supporting";
+}
+
+export interface ExtractedInsight {
+  id: string;
+  type: "problem" | "user" | "feature" | "constraint" | "opportunity" | "other";
+  title: string;
+  description: string;
+  sourceText: string;
+  sourceKnowledgeItemId: string;
+  importance: "primary" | "supporting";
+  confidence: number;
+}
+
+export interface ExtractionOutput {
+  // Gemini returns rich objects, not just strings
+  problems: StructuredExtractedItem[];
+  targetUsers: StructuredExtractedItem[];
+  features: StructuredExtractedItem[];
+  constraints: StructuredExtractedItem[];
+  opportunities: StructuredExtractedItem[];
+  
+  // These can remain as arrays (empty arrays OK)
+  insights: ExtractedInsight[];
+  uncertainties: string[];
+  missingInformation: string[];
+  overallConfidence: number;
+}
+