chore: build backend frontend web

backend/gestion/db/db_init.go

@@ -165,6 +165,23 @@ func InitDB() *Database {
 		log.Fatalf("❌ Erreur migration categories.is_coming_soon: %v", err)
 	}
 
+	// Migration: position d'affichage des catégories
+	if _, err = database.Exec(`ALTER TABLE categories ADD COLUMN IF NOT EXISTS position INTEGER NOT NULL DEFAULT 0`); err != nil {
+		log.Fatalf("❌ Erreur migration categories.position: %v", err)
+	}
+	// Backfill: attribuer des positions aux catégories existantes (ordre alphabétique)
+	if _, err = database.Exec(`
+		UPDATE categories c
+		SET position = sub.rn
+		FROM (
+			SELECT id, ROW_NUMBER() OVER (ORDER BY name ASC) AS rn
+			FROM categories
+		) sub
+		WHERE c.id = sub.id AND c.position = 0
+	`); err != nil {
+		log.Fatalf("❌ Erreur backfill categories.position: %v", err)
+	}
+
 	// Migration: table paramètres globaux de l'application
 	if _, err = database.Exec(`CREATE TABLE IF NOT EXISTS app_settings (
 		key   VARCHAR(100) PRIMARY KEY,