Initial commit - Zhangmenu Django project

A menu management application built with Django, featuring:
- Dish management with cover images
- Order system with party dates and participants
- REST API with Django REST Framework
- Bootstrap-styled frontend

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

static/js/utils.js

@@ -0,0 +1,36 @@
+// 工具函数
+
+// 格式化日期时间
+function formatDateTime(date) {
+    const year = date.getFullYear();
+    const month = String(date.getMonth() + 1).padStart(2, '0');
+    const day = String(date.getDate()).padStart(2, '0');
+    const hours = String(date.getHours()).padStart(2, '0');
+    const minutes = String(date.getMinutes()).padStart(2, '0');
+    return `${year}-${month}-${day} ${hours}:${minutes}`;
+}
+
+// 防抖函数
+function debounce(fn, delay) {
+    let timer;
+    return function(...args) {
+        clearTimeout(timer);
+        timer = setTimeout(() => fn.apply(this, args), delay);
+    };
+}
+
+// 生成默认图片
+function getDefaultImage() {
+    return 'data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 width=%2248%22 height=%2248%22><rect fill=%22%23fed7aa%22 width=%2248%22 height=%2248%22/><text x=%2250%25%22 y=%2250%25%22 text-anchor=%22middle%22 dy=%22.3em%22 fill=%22%23c2410c%22>🍳</text></svg>';
+}
+
+// 确认对话框
+function confirmAction(message) {
+    return confirm(message);
+}
+
+// 显示提示
+function showToast(message, type = 'info') {
+    // 简单实现，实际可以使用更优雅的toast库
+    alert(message);
+}