Ship signup sheet, subscribe reminders, cover crop, and theme updates.

Wire real WeChat app config, prefer activity cover over posters, and add admin cover cropping for the home banner.

Co-authored-by: Cursor <cursoragent@cursor.com>

miniprogram/pages/index/index.js

@@ -5,7 +5,8 @@ const fallback = require('../../utils/fallback')
 
 Page({
   data: {
-    activity: fallback.CURRENT
+    activity: fallback.CURRENT,
+    signupOpen: false
   },
 
   onLoad(query) {
@@ -34,8 +35,14 @@ Page({
     activityUtil.openMap(this.data.activity)
   },
 
-  goSignup() {
-    activityUtil.goSignup(this.data.activity)
+  openSignup() {
+    if (!this.data.activity || !this.data.activity.id) return
+    if (this.data.activity.status === 'past') return
+    this.setData({ signupOpen: true })
+  },
+
+  closeSignup() {
+    this.setData({ signupOpen: false })
   },
 
   goPast() {

miniprogram/pages/index/index.json

@@ -2,6 +2,7 @@
   "navigationBarTitleText": "卓米会",
   "enablePullDownRefresh": true,
   "usingComponents": {
-    "activity-board": "/components/activity-board/index"
+    "activity-board": "/components/activity-board/index",
+    "signup-sheet": "/components/signup-sheet/index"
   }
 }

miniprogram/pages/index/index.wxml

@@ -2,6 +2,11 @@
   activity="{{activity}}"
   show-past="{{true}}"
   bind:map="openMap"
-  bind:signup="goSignup"
+  bind:signup="openSignup"
   bind:past="goPast"
 />
+<signup-sheet
+  show="{{signupOpen}}"
+  activity-id="{{activity.id}}"
+  bind:close="closeSignup"
+/>