update Evaluate and prompting with schema from user

service/evaluator_gemini.go

@@ -20,7 +20,7 @@ func NewGeminiEvaluator(cfg *model.ServiceConfig) *GeminiEvaluator {
 	return &GeminiEvaluator{config: cfg}
 }
 
-func (g *GeminiEvaluator) Evaluate(ctx context.Context, transcript string) (*model.CoreOutputFormat, error) {
+func (g *GeminiEvaluator) Evaluate(ctx context.Context, transcript string, schema map[string]interface{}) (*model.CoreOutputFormat, error) {
 	prompt := fmt.Sprintf(`
 		You are a Data Extraction AI. 
 		Your task is to extract structured data from the TRANSCRIPT based on the TARGET SCHEMA.
@@ -31,25 +31,14 @@ func (g *GeminiEvaluator) Evaluate(ctx context.Context, transcript string) (*mod
 
 		IMPORTANT: Your output must be a SINGLE JSON object with the EXACT structure below:
 		{
-		"parsed": {
-			"name": "extracted string or null",
-			"nim": "extracted string or null",
-			"gpa": number or 0
-		},
-		"status": {
-			"name": "filled" or "missing",
-			"nim": "filled" or "missing",
-			"gpa": "filled" or "missing"
-		},
+		"parsed": { ...fields matching schema... },
+		"status": { ...fields matching schema (filled/missing)... },
 		"progress": 0.0 to 1.0,
-		"reason": {
-			"field_name": "reason if missing"
-		},
-		"raw_transcript": "copy the transcript exactly here"
+		"reason": { ...field_name: reason... },
+		"raw_transcript": "..."
 		}
-
-		Do not include markdown formatting (like `+"```json"+`). Just the raw JSON.
-		`, transcript, g.config.Schema)
+		Return ONLY valid JSON.
+		`, transcript, schema)
 
 	req := model.GeminiRequest{
 		Contents: []model.Content{