Add in-app result viewer and expand Gemini review

backend/services/gemini.go

@@ -154,7 +154,8 @@ func (g *GeminiService) Recommend(query string, candidates []SearchResult) ([]AI
 		{
 			"text": `Analyze the provided images for the user's search intent. Return JSON only in this shape:
 {"recommendations":[{"index":0,"reason":"short reason","recommended":true}]}
-Mark only the best matches as recommended=true. Keep reasons concise. Recommend up to 8 items.
+Return one entry for every analyzed candidate. Use Korean for every reason. Keep reasons concise but specific enough to explain usefulness.
+Mark the strongest matches as recommended=true and weaker matches as recommended=false.
 Prefer cinematic b-roll, stock footage, editorial footage, clean composition, usable establishing shots, and professional media thumbnails.
 Avoid clickbait faces, exaggerated expressions, meme aesthetics, low-information thumbnails, sensational text overlays, or gossip-style imagery.
 Favor thumbnails that look directly useful for media editing and footage sourcing.
@@ -230,7 +231,7 @@ User query: ` + query,
 
 	recommendations := make([]AIRecommendation, 0, len(parsed.Recommendations))
 	for _, rec := range parsed.Recommendations {
-		if rec.Index < 0 || rec.Index >= len(candidates) || !rec.Recommended {
+		if rec.Index < 0 || rec.Index >= len(candidates) {
 			continue
 		}
 		src := candidates[rec.Index]
@@ -241,13 +242,13 @@ User query: ` + query,
 			ThumbnailURL:    src.ThumbnailURL,
 			PreviewVideoURL: src.PreviewVideoURL,
 			Source:          src.Source,
-			Reason:          rec.Reason,
-			Recommended:     true,
+			Reason:          normalizeKoreanReason(rec.Reason),
+			Recommended:     rec.Recommended,
 		})
 	}
 
 	if len(recommendations) == 0 {
-		for _, candidate := range candidates[:min(4, len(candidates))] {
+		for _, candidate := range candidates[:min(8, len(candidates))] {
 			recommendations = append(recommendations, AIRecommendation{
 				Title:           candidate.Title,
 				Link:            candidate.Link,
@@ -255,8 +256,8 @@ User query: ` + query,
 				ThumbnailURL:    candidate.ThumbnailURL,
 				PreviewVideoURL: candidate.PreviewVideoURL,
 				Source:          candidate.Source,
-				Reason:          "Fallback result because Gemini returned no recommended items.",
-				Recommended:     true,
+				Reason:          "Gemini Vision 평가를 받지 못해 키워드 기준으로 보강된 결과입니다.",
+				Recommended:     false,
 			})
 		}
 	}
@@ -412,6 +413,14 @@ func truncateForError(text string, limit int) string {
 	return trimmed[:limit] + "..."
 }
 
+func normalizeKoreanReason(reason string) string {
+	trimmed := strings.TrimSpace(reason)
+	if trimmed == "" {
+		return "시각 정보가 제한적이지만 검색 의도와의 관련성을 기준으로 평가했습니다."
+	}
+	return trimmed
+}
+
 func buildSearchQueries(originalQuery, englishQuery string) []string {
 	base := strings.TrimSpace(englishQuery)
 	if base == "" {