Load the directory model from the layered Veracross import

tools/columns/main.go

@@ -5,7 +5,6 @@ import (
 	"fmt"
 	"log"
 	"os"
-	"sort"
 
 	"heliosian/internal/data"
 )
@@ -22,28 +21,13 @@ func main() {
 		}
 		source = s
 	}
-	for _, name := range []string{"Basic Directory", "Staff Details", "Classrooms", "Schedules", "Grade Lookup", "Room Parents", "Departments"} {
-		rows, err := source.Table("directory", name)
+	for _, name := range []string{"Veracross Import", "Name to Email", "Overrides", "Change Log"} {
+		header, rows, err := source.Table("directory", name)
 		if err != nil {
 			log.Fatalf("[ERROR] table %s: %v", name, err)
 		}
-		if len(rows) == 0 {
-			fmt.Printf("%s: no rows\n", name)
-			continue
-		}
-		seen := map[string]bool{}
-		columns := []string{}
-		for _, row := range rows {
-			for column := range row {
-				if !seen[column] {
-					seen[column] = true
-					columns = append(columns, column)
-				}
-			}
-		}
-		sort.Strings(columns)
-		fmt.Printf("%s:\n", name)
-		for _, column := range columns {
+		fmt.Printf("%s (%d rows):\n", name, len(rows))
+		for _, column := range header {
 			fmt.Printf("  %s\n", column)
 		}
 	}