refactor: 确立独立子工程架构 (backend, admin, mpuniapp) 并同步更新 AGENTS.md 规范

mpuniapp/pages/API/create-intersection-observer/create-intersection-observer.test.js

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+const platformInfo = process.env.uniTestPlatformInfo.toLocaleLowerCase()
+const isAndroid = platformInfo.startsWith('android')
+const isIOS = platformInfo.startsWith('ios')
+const isHarmony = platformInfo.startsWith('harmony')
+const isApp = isAndroid || isIOS || isHarmony
+const isSafari = platformInfo.indexOf('safari') > -1
+const isMP = platformInfo.startsWith('mp')
+
+describe('API-intersection-observer', () => {
+	if (isApp || isSafari || isMP) {
+	  it('not support', () => {
+	    expect(1).toBe(1)
+	  })
+	  return
+	}
+  let page;
+  beforeAll(async () => {
+    page = await program.reLaunch('/pages/API/create-intersection-observer/create-intersection-observer')
+    await page.waitFor('view');
+  });
+
+  it('scroll-to-show-ball', async () => {
+    await page.setData({data:{scrollTop: 180}})
+    await page.waitFor(500)
+    // 微信小程序端，仅在基础库3.5.8及以下版本支持scrollTo方法
+    // const scrollView = await page.$('.scroll-view')
+    // await scrollView.scrollTo(0, 200)
+    const appear = await page.data('data.appear')
+    expect(appear).toBe(true)
+    const testRes = await page.data('data.testRes')
+    expect(testRes.intersectionRatio).toBeGreaterThan(0)
+    expect(testRes.intersectionRect).toBeDefined()
+    expect(testRes.boundingClientRect).toBeDefined()
+    expect(testRes.relativeRect).toBeDefined()
+    expect(testRes.boundingClientRect.bottom).toBeDefined()
+    expect(testRes.boundingClientRect.left).toBeDefined()
+    expect(testRes.boundingClientRect.right).toBeDefined()
+    expect(testRes.boundingClientRect.top).toBeDefined()
+  })
+
+});

mpuniapp/pages/API/create-intersection-observer/create-intersection-observer.uvue

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+<template>
+	<view>
+		<page-head :title="data.title"></page-head>
+		<view class="uni-padding-wrap uni-common-mt">
+			<view class="uni-title uni-common-mt">
+				{{data.appear ? '小球出现' : '小球消失'}}
+			</view>
+			<scroll-view class="scroll-view" :scrollTop="data.scrollTop">
+				<view class="scroll-area">
+					<text class="notice">向下滚动让小球出现</text>
+					<view class="ball"></view>
+				</view>
+			</scroll-view>
+		</view>
+	</view>
+</template>
+<script setup lang="uts">
+  let observer: IntersectionObserver | null = null;
+
+  type DataType = {
+    appear: boolean;
+    title: string;
+    testRes: ObserveResult | null;
+    scrollTop: number;
+  }
+
+  const data = reactive({
+    appear: false,
+    title: 'intersectionObserver',
+    testRes: null,
+    scrollTop: 0
+  } as DataType)
+
+  onReady(() => {
+    observer = uni.createIntersectionObserver(getCurrentInstance()!.proxy!, {});
+    observer.relativeTo('.scroll-view').observe('.ball', (res: ObserveResult) => {
+      data.testRes = res;
+      if (res.intersectionRatio > 0 && !data.appear) {
+        data.appear = true;
+      } else if (res.intersectionRatio <= 0 && data.appear) {
+        data.appear = false;
+      }
+    })
+  })
+
+  onUnload(() => {
+    if (observer) {
+      observer.disconnect()
+    }
+  })
+
+  defineExpose({
+    data
+  })
+</script>
+<style>
+	.scroll-view {
+		height: 200px;
+		background: #fff;
+		border: 1px solid #ccc;
+		box-sizing: border-box;
+	}
+
+	.scroll-area {
+		height: 650px;
+		display: flex;
+		flex-direction: column;
+		align-items: center;
+	}
+
+	.notice {
+		margin-top: 75px;
+		margin:75px 0 200px 0;
+	}
+
+	.ball {
+		width: 100px;
+		height: 100px;
+		background: #4cd964;
+		border-radius: 100px;
+	}
+</style>