# Task ID: 34
# Title: Push Notifications (WeChat Template Messages)
# Status: pending
# Dependencies: 4, 11
# Priority: low
# Description: Integrate WeChat template messages to send important notifications to users, such as match invitations, game start reminders, or activity updates.
# Details:
Backend: Implement WeChat template message sending API calls. Obtain user's formId/subscribe message permissions during user interactions (e.g., after login, when creating a room). Define templates for 'Game Invitation', 'Match Found', 'Activity Reminder'. Trigger these messages based on backend events. Frontend: Guide users to authorize template messages.

# Test Strategy:
Send a game invitation to a test user and verify they receive a WeChat template message. Test other notification types (e.g., match found, activity reminder). Ensure proper authorization handling.