Switch queue to local label templates

sql/create_label_print_queue.sql

@@ -1,29 +1,40 @@
 CREATE TABLE IF NOT EXISTS label_print_queue (
     id BIGINT AUTO_INCREMENT PRIMARY KEY,
-    layout_key VARCHAR(100) NOT NULL,
+
+    barcode_template_id INT(11) NOT NULL,
     payload_json JSON NOT NULL,
-    status ENUM('pending','printing','printed','error','deleted') NOT NULL DEFAULT 'pending',
+
+    reserved_number BIGINT NULL,
+    number_reserved_at DATETIME NULL,
+    number_printed_at DATETIME NULL,
+
+    status ENUM('pending','number_reserved','printing','printed','error','deleted') NOT NULL DEFAULT 'pending',
+
     printer_name VARCHAR(255) NULL,
     attempts INT NOT NULL DEFAULT 0,
     error_message TEXT NULL,
+
     created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
     locked_at DATETIME NULL,
     printed_at DATETIME NULL,
+
     INDEX idx_label_print_queue_status_created (status, created_at),
-    INDEX idx_label_print_queue_layout_key (layout_key)
+    INDEX idx_label_print_queue_barcode_template_id (barcode_template_id),
+
+    CONSTRAINT fk_label_print_queue_barcode_template
+        FOREIGN KEY (barcode_template_id)
+        REFERENCES barcode_templates(Id)
 );
 
 INSERT INTO label_print_queue
-(layout_key, payload_json, status)
+(barcode_template_id, payload_json, status)
 VALUES
 (
-  'dymo_57x32_standard',
+  1,
   JSON_OBJECT(
     'titel', 'Beleg privat',
-    'beschreibung', 'Dokument 2026-000123',
-    'nummer', '2026-000123',
-    'datum', '2026-05-07',
-    'qr', 'bjoernprivat 0000123'
+    'beschreibung', 'Tankbeleg',
+    'datum', '2026-05-07'
   ),
   'pending'
 );