-feat 修复部分bug

internal/repository/transaction_repository.go

@@ -24,6 +24,7 @@ type TransactionFilter struct {
 	// Entity filters
 	CategoryID  *uint
 	AccountID   *uint
+	LedgerID    *uint // 账本过滤
 	TagIDs      []uint
 	Type        *models.TransactionType
 	Currency    *models.Currency
@@ -277,6 +278,13 @@ func (r *TransactionRepository) applyFilters(query *gorm.DB, filter TransactionF
 	if filter.RecurringID != nil {
 		query = query.Where("recurring_id = ?", *filter.RecurringID)
 	}
+	// LedgerID filter - requires subquery to get accounts belonging to the ledger
+	if filter.LedgerID != nil {
+		query = query.Where("account_id IN (?)",
+			r.db.Model(&models.Account{}).
+				Select("id").
+				Where("ledger_id = ?", *filter.LedgerID))
+	}
 	// UserID provided in argument takes precedence, but if filter has it, we can redundant check or ignore.
 	// The caller `List` already applied `Where("user_id = ?", userID)`.