优化违禁词

backend/internal/repo/banned_word_repo.go

@@ -84,13 +84,43 @@ func (r *BannedWordRepository) Delete(ctx context.Context, id string) (int64, er
 	return res.RowsAffected, res.Error
 }
 
-// RecordHit bumps the word's block counter and, when userID is set, the user's
-// 违禁词触发次数 shown on the admin users table. Best-effort bookkeeping.
-func (r *BannedWordRepository) RecordHit(ctx context.Context, wordID, userID string) {
+// RecordHit bumps the word's block counter, the user's 违禁词触发次数 (when userID
+// is set), and appends a BannedWordHit row for the admin 违禁词触发列表.
+// Best-effort bookkeeping.
+func (r *BannedWordRepository) RecordHit(ctx context.Context, wordID, word, userID, userName, prompt string) {
 	_ = r.db.WithContext(ctx).Model(&model.BannedWord{}).Where("id = ?", wordID).
 		UpdateColumn("hits", gorm.Expr("hits + 1")).Error
 	if userID != "" {
 		_ = r.db.WithContext(ctx).Model(&model.User{}).Where("id = ?", userID).
 			UpdateColumn("banned_word_hits", gorm.Expr("banned_word_hits + 1")).Error
 	}
+	_ = r.db.WithContext(ctx).Create(&model.BannedWordHit{
+		ID:        strings.ReplaceAll(uuid.NewString(), "-", "")[:32],
+		WordID:    wordID,
+		Word:      word,
+		UserID:    userID,
+		UserName:  userName,
+		Prompt:    prompt,
+		CreatedAt: time.Now(),
+	}).Error
+}
+
+// ListHits returns trigger records newest first, with pagination + total.
+// query — server-side search over 违禁词 / 用户名 / 提示词 (跨页).
+func (r *BannedWordRepository) ListHits(ctx context.Context, query string, limit, offset int) ([]model.BannedWordHit, int64, error) {
+	var out []model.BannedWordHit
+	var total int64
+	q := r.db.WithContext(ctx).Model(&model.BannedWordHit{})
+	if term := strings.TrimSpace(query); term != "" {
+		like := "%" + term + "%"
+		q = q.Where("(word ILIKE ? OR user_name ILIKE ? OR user_id ILIKE ? OR prompt ILIKE ?)", like, like, like, like)
+	}
+	if err := q.Count(&total).Error; err != nil {
+		return nil, 0, err
+	}
+	if limit <= 0 {
+		limit = 50
+	}
+	err := q.Order("created_at desc").Limit(limit).Offset(offset).Find(&out).Error
+	return out, total, err
 }