修复拼图生成前订阅授权

新增小程序原生订阅消息授权页，在用户点击后请求生成结果通知授权。

拼图 compile_puzzle_draft 前等待授权页返回或跳过后再发起生成 action。

移除 web-view message 订阅授权路径，改用 storage/hash 回写订阅结果。

补充订阅授权测试、文档和团队踩坑记录。

miniprogram/pages/subscribe-message/index.js

@@ -0,0 +1,10 @@
+/* global Page */
+
+const { GENERATION_RESULT_SUBSCRIBE_TEMPLATE_ID } = require('../../config');
+const { createSubscribeMessagePage } = require('./index.shared');
+
+Page(
+  createSubscribeMessagePage(null, {
+    templateId: GENERATION_RESULT_SUBSCRIBE_TEMPLATE_ID,
+  }),
+);

miniprogram/pages/subscribe-message/index.json

@@ -0,0 +1,3 @@
+{
+  "navigationBarTitleText": "生成通知"
+}

miniprogram/pages/subscribe-message/index.shared.js

@@ -0,0 +1,135 @@
+/* global wx, getCurrentPages */
+
+const SUBSCRIBE_RESULT_STORAGE_KEY = 'genarrative:wechat-subscribe-result';
+
+function appendSubscribeResult(url, result) {
+  const hashIndex = String(url || '').indexOf('#');
+  const baseUrl =
+    hashIndex >= 0 ? String(url).slice(0, hashIndex) : String(url || '');
+  const rawHash = hashIndex >= 0 ? String(url).slice(hashIndex + 1) : '';
+  const nextHash = rawHash
+    .split('&')
+    .filter((part) => part && !part.startsWith('wx_subscribe_result='))
+    .concat(`wx_subscribe_result=${encodeURIComponent(result)}`)
+    .join('&');
+  return `${baseUrl}#${nextHash}`;
+}
+
+function buildSubscribeResultValue(requestId, status, reason) {
+  const segments = [requestId, status];
+  if (reason) {
+    segments.push(encodeURIComponent(reason));
+  }
+  return segments.join(':');
+}
+
+function notifyPreviousWebView(requestId, status, reason) {
+  const result = buildSubscribeResultValue(requestId, status, reason);
+  wx.setStorageSync(SUBSCRIBE_RESULT_STORAGE_KEY, result);
+  const pages = getCurrentPages();
+  const previousPage = pages.length >= 2 ? pages[pages.length - 2] : null;
+  if (previousPage && typeof previousPage.setData === 'function') {
+    previousPage.setData({
+      webViewUrl: appendSubscribeResult(previousPage.data.webViewUrl, result),
+    });
+  }
+}
+
+function resolveSubscribeStatus(result, templateId) {
+  return result && result[templateId] === 'accept'
+    ? 'success'
+    : 'skip';
+}
+
+function createSubscribeMessagePage(pageContext, options = {}) {
+  const templateId = String(options.templateId || '').trim();
+  const notifyPageResult = (methodThis, status, reason) => {
+    const page = pageContext ?? methodThis;
+    const requestId = page.requestId || '';
+    if (!requestId || page.hasNotifiedSubscribeResult) {
+      return;
+    }
+    page.hasNotifiedSubscribeResult = true;
+    notifyPreviousWebView(requestId, status, reason);
+  };
+
+  return {
+    data: {
+      title: '接收生成结果通知',
+      errorMessage: '',
+      requesting: false,
+    },
+
+    onLoad(query) {
+      const page = pageContext ?? this;
+      page.requestId = String(query.requestId || '');
+      page.hasNotifiedSubscribeResult = false;
+    },
+
+    notifyResult(status, reason) {
+      notifyPageResult(this, status, reason);
+    },
+
+    requestSubscribe() {
+      const page = pageContext ?? this;
+      const requestId = page.requestId || '';
+      if (!requestId) {
+        page.setData({
+          errorMessage: '缺少订阅请求参数。',
+        });
+        return;
+      }
+      if (!templateId) {
+        notifyPageResult(this, 'skip', 'missing_template_id');
+        wx.navigateBack();
+        return;
+      }
+      if (typeof wx.requestSubscribeMessage !== 'function') {
+        notifyPageResult(this, 'skip', 'unsupported');
+        wx.navigateBack();
+        return;
+      }
+
+      page.setData({
+        requesting: true,
+        errorMessage: '',
+      });
+      wx.requestSubscribeMessage({
+        tmplIds: [templateId],
+        success(result) {
+          notifyPageResult(
+            page,
+            resolveSubscribeStatus(result, templateId),
+            '',
+          );
+          wx.navigateBack();
+        },
+        fail(error) {
+          notifyPageResult(
+            page,
+            'skip',
+            error && error.errMsg ? error.errMsg : 'failed',
+          );
+          wx.navigateBack();
+        },
+      });
+    },
+
+    handleSkip() {
+      notifyPageResult(this, 'skip', 'user_skip');
+      wx.navigateBack();
+    },
+
+    onUnload() {
+      notifyPageResult(this, 'skip', 'page_unload');
+    },
+  };
+}
+
+module.exports = {
+  SUBSCRIBE_RESULT_STORAGE_KEY,
+  appendSubscribeResult,
+  buildSubscribeResultValue,
+  createSubscribeMessagePage,
+  resolveSubscribeStatus,
+};

miniprogram/pages/subscribe-message/index.test.js

@@ -0,0 +1,99 @@
+import { beforeEach, describe, expect, test, vi } from 'vitest';
+
+import subscribeMessageBridge from './index.shared.js';
+
+const TEST_TEMPLATE_ID = 'm5z7BkkBhJGbcH0cdDeHaeRU2tViDEguP38XdrRRCdU';
+
+const {
+  SUBSCRIBE_RESULT_STORAGE_KEY,
+  appendSubscribeResult,
+  buildSubscribeResultValue,
+  createSubscribeMessagePage,
+} = subscribeMessageBridge;
+
+describe('subscribe-message mini program bridge', () => {
+  beforeEach(() => {
+    globalThis.wx = {
+      requestSubscribeMessage: vi.fn(),
+      setStorageSync: vi.fn(),
+      navigateBack: vi.fn(),
+    };
+    globalThis.getCurrentPages = vi.fn(() => []);
+  });
+
+  test('requests subscribe message and notifies previous web-view before returning', () => {
+    const previousPage = {
+      data: { webViewUrl: 'https://web.test/#tab=create' },
+      setData: vi.fn(),
+    };
+    globalThis.getCurrentPages = vi.fn(() => [previousPage, {}]);
+    globalThis.wx.requestSubscribeMessage.mockImplementationOnce((options) => {
+      options.success?.({
+        m5z7BkkBhJGbcH0cdDeHaeRU2tViDEguP38XdrRRCdU: 'accept',
+      });
+    });
+    const page = createSubscribeMessagePage(
+      {
+        setData: vi.fn(),
+      },
+      { templateId: TEST_TEMPLATE_ID },
+    );
+    page.onLoad({ requestId: 'request-1' });
+
+    page.requestSubscribe();
+
+    expect(globalThis.wx.requestSubscribeMessage).toHaveBeenCalledWith({
+      tmplIds: [TEST_TEMPLATE_ID],
+      success: expect.any(Function),
+      fail: expect.any(Function),
+    });
+    expect(globalThis.wx.setStorageSync).toHaveBeenCalledWith(
+      SUBSCRIBE_RESULT_STORAGE_KEY,
+      'request-1:success',
+    );
+    expect(previousPage.setData).toHaveBeenCalledWith({
+      webViewUrl:
+        'https://web.test/#tab=create&wx_subscribe_result=request-1%3Asuccess',
+    });
+    expect(globalThis.wx.navigateBack).toHaveBeenCalled();
+  });
+
+  test('skip action notifies previous web-view', () => {
+    const previousPage = {
+      data: { webViewUrl: 'https://web.test/' },
+      setData: vi.fn(),
+    };
+    globalThis.getCurrentPages = vi.fn(() => [previousPage, {}]);
+    const page = createSubscribeMessagePage(
+      {
+        setData: vi.fn(),
+      },
+      { templateId: TEST_TEMPLATE_ID },
+    );
+    page.onLoad({ requestId: 'request-skip' });
+
+    page.handleSkip();
+
+    expect(globalThis.wx.setStorageSync).toHaveBeenCalledWith(
+      SUBSCRIBE_RESULT_STORAGE_KEY,
+      'request-skip:skip:user_skip',
+    );
+    expect(previousPage.setData).toHaveBeenCalledWith({
+      webViewUrl:
+        'https://web.test/#wx_subscribe_result=request-skip%3Askip%3Auser_skip',
+    });
+    expect(globalThis.wx.navigateBack).toHaveBeenCalled();
+  });
+
+  test('appendSubscribeResult replaces stale subscribe hash', () => {
+    expect(
+      appendSubscribeResult(
+        'https://web.test/#old=1&wx_subscribe_result=old',
+        'req:skip',
+      ),
+    ).toBe('https://web.test/#old=1&wx_subscribe_result=req%3Askip');
+    expect(buildSubscribeResultValue('req-1', 'skip', 'user_cancel')).toBe(
+      'req-1:skip:user_cancel',
+    );
+  });
+});

miniprogram/pages/subscribe-message/index.wxml

@@ -0,0 +1,19 @@
+<view class="subscribe-screen">
+  <view class="subscribe-card">
+    <view class="subscribe-title">{{title}}</view>
+    <view wx:if="{{errorMessage}}" class="subscribe-text subscribe-text--danger">
+      {{errorMessage}}
+    </view>
+    <button
+      class="primary-button"
+      loading="{{requesting}}"
+      disabled="{{requesting}}"
+      bindtap="requestSubscribe"
+    >
+      继续并接收通知
+    </button>
+    <button class="ghost-button" disabled="{{requesting}}" bindtap="handleSkip">
+      仅继续生成
+    </button>
+  </view>
+</view>

miniprogram/pages/subscribe-message/index.wxss

@@ -0,0 +1,58 @@
+.subscribe-screen {
+  min-height: 100vh;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 48rpx;
+  background: #0b0f14;
+  box-sizing: border-box;
+}
+
+.subscribe-card {
+  width: 100%;
+  max-width: 560rpx;
+  padding: 36rpx;
+  border: 1rpx solid rgba(255, 255, 255, 0.14);
+  border-radius: 12rpx;
+  background: rgba(255, 255, 255, 0.06);
+  box-sizing: border-box;
+}
+
+.subscribe-title {
+  font-size: 34rpx;
+  font-weight: 600;
+  line-height: 1.35;
+  color: #f5f7fb;
+}
+
+.subscribe-text {
+  margin-top: 16rpx;
+  font-size: 26rpx;
+  line-height: 1.55;
+  color: rgba(245, 247, 251, 0.72);
+}
+
+.subscribe-text--danger {
+  color: #ffb4a9;
+}
+
+.primary-button,
+.ghost-button {
+  margin-top: 28rpx;
+  width: 100%;
+  border-radius: 8rpx;
+  font-size: 26rpx;
+  line-height: 2.6;
+}
+
+.primary-button {
+  background: #f5f7fb;
+  color: #0b0f14;
+}
+
+.ghost-button {
+  margin-top: 20rpx;
+  border: 1rpx solid rgba(255, 255, 255, 0.24);
+  background: transparent;
+  color: rgba(245, 247, 251, 0.86);
+}