feat: 现代化翻页组件 + 完整项目更新

- 新增 Pagination 通用组件：首页/上一页/页码/下一页/末页导航
- PickModal 和 SwapModal 集成分页功能，每页20项
- 搜索/筛选切换自动回到第1页
- 现代化CSS样式：hover浮起动效、主色高亮、移动端适配
- 新增 dashboard、admin 管理模板
- 菜系(cuisine)模型和迁移
- 构建脚本 build.py 支持 PyInstaller 打包
- 前端资源重新构建

backend/templates/registration/password_change_done.html

@@ -0,0 +1,91 @@
+{% extends "admin/base.html" %}
+{% load i18n static jazzmin %}
+{% get_jazzmin_settings request as jazzmin_settings %}
+{% get_jazzmin_ui_tweaks as jazzmin_ui %}
+
+{% block title %}{% trans "Password change successful" %} | {{ jazzmin_settings.site_title }}{% endblock %}
+
+{% block bodyclass %}password-done-page{% endblock %}
+
+{% block extrastyle %}
+<style>
+  .password-done-page .app-content {
+    display: flex;
+    align-items: flex-start;
+    justify-content: center;
+    padding-top: 48px;
+    padding-bottom: 48px;
+  }
+  .done-card {
+    width: 100%;
+    max-width: 440px;
+    text-align: center;
+    background: var(--bs-card-bg, #fff);
+    border: 1px solid var(--bs-border-color, #dee2e6);
+    border-radius: 8px;
+    box-shadow: 0 1px 3px rgba(0,0,0,.06), 0 6px 16px rgba(0,0,0,.04);
+    padding: 48px 32px 40px;
+  }
+  .done-icon {
+    width: 72px;
+    height: 72px;
+    border-radius: 50%;
+    background: linear-gradient(135deg, #10b981, #059669);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    margin: 0 auto 20px;
+    font-size: 32px;
+    color: #fff;
+    animation: popIn .4s ease;
+  }
+  @keyframes popIn {
+    0% { transform: scale(.5); opacity: 0; }
+    70% { transform: scale(1.08); }
+    100% { transform: scale(1); opacity: 1; }
+  }
+  .done-card h2 {
+    font-size: 20px;
+    font-weight: 600;
+    margin: 0 0 8px;
+    color: var(--bs-body-color, #212529);
+  }
+  .done-card p {
+    font-size: 14px;
+    color: var(--bs-secondary-color, #6c757d);
+    margin: 0 0 28px;
+    line-height: 1.5;
+  }
+  .btn-back {
+    display: inline-flex;
+    align-items: center;
+    gap: 8px;
+    padding: 10px 24px;
+    font-size: 14px;
+    font-weight: 500;
+    border-radius: 6px;
+    border: none;
+    background: linear-gradient(135deg, #4f46e5, #7c3aed);
+    color: #fff;
+    text-decoration: none;
+    cursor: pointer;
+    transition: opacity .15s, transform .1s;
+  }
+  .btn-back:hover { opacity: .9; color: #fff; text-decoration: none; }
+  .btn-back:active { transform: scale(.98); }
+</style>
+{% endblock %}
+
+{% block page_content %}
+<div class="app-content">
+  <div class="done-card">
+    <div class="done-icon"><i class="fas fa-check"></i></div>
+    <h2>{% trans "Password change successful" %}</h2>
+    <p>{% trans "Your password has been updated." %}</p>
+    <a href="{% url 'admin:index' %}" class="btn-back">
+      <i class="fas fa-arrow-left"></i>
+      {% trans "Back to admin" %}
+    </a>
+  </div>
+</div>
+{% endblock %}