wesley/zsff: 内容付费 @ a7f4298bcb5a4869ef474db4da6cd0c8b3df47d9

wesley.chen e3aebe139c first commit		%!s(int64=7) %!d(string=hai) anos
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Base	e3aebe139c first commit	%!s(int64=7) %!d(string=hai) anos
Contracts	e3aebe139c first commit	%!s(int64=7) %!d(string=hai) anos
Messages	e3aebe139c first commit	%!s(int64=7) %!d(string=hai) anos
Payment	e3aebe139c first commit	%!s(int64=7) %!d(string=hai) anos
User	e3aebe139c first commit	%!s(int64=7) %!d(string=hai) anos