更新项目配置和添加小程序模块

- 修改 ArticleController.java
- 更新 application.yml 配置
- 更新 frontend/.env.production 环境配置
- 添加 single_uniapp22miao 小程序模块
- 添加 logs 目录

single_uniapp22miao/pages/sub-pages/webview/sign-preview.vue

@@ -0,0 +1,73 @@
+<template>
+  <view class="preview-page">
+    <web-view class="pdf-view" :src="pdfUrl"></web-view>
+    <view class="fixed-footer" @click="goToSign">
+      <text class="footer-text">前往签字</text>
+    </view>
+  </view>
+</template>
+
+<script>
+export default {
+  data() {
+    return {
+      pdfUrl: ''
+    }
+  },
+  
+  onLoad(options) {
+    const url = options && options.url ? decodeURIComponent(options.url) : '/static/templates.pdf'
+    this.pdfUrl = url
+  },
+
+  methods: {
+    goToSign() {
+      uni.navigateTo({
+        url: '/pages/sub-pages/webview/sign'
+      })
+    }
+  }
+}
+</script>
+
+<style lang="scss" scoped>
+.preview-page {
+  position: relative;
+  height: 100vh;
+  background: #f5f5f5;
+}
+
+.pdf-view {
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 120rpx;
+}
+
+.fixed-footer {
+  position: fixed;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  height: 120rpx;
+  background: #ffffff;
+  border-top: 2rpx solid #eee;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 10;
+}
+
+.footer-text {
+  background: #f30303;
+  color: #fff;
+  font-size: 32rpx;
+  padding: 18rpx 30rpx;
+  border-radius: 20rpx;
+  width: 94%;
+  text-align: center;
+  box-shadow: 0 8rpx 20rpx rgba(255, 45, 45, 0.25);
+}
+</style>
+