feat: upgrade custom tabbar with emoji support, redesign quick-actions

- Switch back to custom tabbar (custom: true) with emoji fix (line-height, font-family)
- Redesign home quick-actions: product/followup/analytics/notifications replace redundant nav items
- Refactor goToPage to auto-detect tabbar vs non-tabbar pages
- Update PROGRESS.md

uni-app/src/pages.json

@@ -105,7 +105,7 @@
     "backgroundColor": "#f5f5f5"
   },
   "tabBar": {
-    "custom": false,
+    "custom": true,
     "color": "#666666",
     "selectedColor": "#1890ff",
     "backgroundColor": "#ffffff",