feat: 搭建微信小程序展示端

- 初始化小程序工程配置与类型声明

- 增加首页、律所、律师列表、详情与历史页面

- 补充公共组件、运行时配置与示例素材

frontend_miniprogram/miniprogram/components/app-header/app-header.json

@@ -0,0 +1,6 @@
+{
+  "component": true,
+  "usingComponents": {
+    "navigation-bar": "/components/navigation-bar/navigation-bar"
+  }
+}

frontend_miniprogram/miniprogram/components/app-header/app-header.less

@@ -0,0 +1,3 @@
+:host {
+  display: block;
+}

frontend_miniprogram/miniprogram/components/app-header/app-header.ts

@@ -0,0 +1,20 @@
+Component({
+  properties: {
+    title: {
+      type: String,
+      value: '',
+    },
+    back: {
+      type: Boolean,
+      value: false,
+    },
+    background: {
+      type: String,
+      value: '#F4F4F4',
+    },
+    color: {
+      type: String,
+      value: '#1f1f1f',
+    },
+  },
+});

frontend_miniprogram/miniprogram/components/app-header/app-header.wxml

@@ -0,0 +1,6 @@
+<navigation-bar
+  title="{{title}}"
+  back="{{back}}"
+  color="{{color}}"
+  background="{{background}}"
+></navigation-bar>