Wechat mini program notecard app

Allow each user to create stacks of notecard for each category.

Name		Name	Last commit message	Last commit date
Latest commit History 2 Commits
client		client
server		server
README.md		README.md
cAuth.sql		cAuth.sql
demo1.mp4		demo1.mp4
demo2.mp4		demo2.mp4
project.config.json		project.config.json

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