赵月辉 / fastgpt-migrated

* add email plugin (#4343)

* add email plugin

* remove console.log

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Co-authored-by: zhengshuai.li <zhengshuai.li@cloudpense.com>

* perf: smtp email

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Co-authored-by: lzs2000131 <lzs2000131@163.com>
Co-authored-by: zhengshuai.li <zhengshuai.li@cloudpense.com>