Implement greet inbox and outbox

- Add user_greet model and startup table sync
- Implement /greet/user and /greet/delete handlers
- Implement noticeFriendGreeting inbox and noticeUserGreetingHistory outbox
- Return peer profile and center unit info for greeting notices
- Update login topInfo friend greet counters from unread inbox messages

Signed-off-by: Sean Du <do4suki@gmail.com>

internal/schema/greet/user.go

@@ -0,0 +1,12 @@
+package greetschema
+
+type UserReq struct {
+	Module          string `json:"module"`
+	Mgd             int    `json:"mgd"`
+	Action          string `json:"action"`
+	TimeStamp       int64  `json:"timeStamp"`
+	ToUserID        int    `json:"to_user_id"`
+	Message         string `json:"message"`
+	RepliedNoticeID int    `json:"replied_notice_id"`
+	CommandNum      string `json:"commandNum"`
+}