Troubleshoot misskey follows

Store the original follow request object and use it for approvals.
Closes #1690

db/models.go

@@ -1,4 +1,6 @@
 // Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.13.0
 
 package db
 
@@ -16,15 +18,16 @@ type ApAcceptedActivity struct {
 }
 
 type ApFollower struct {
-	Iri        string
-	Inbox      string
-	Name       sql.NullString
-	Username   string
-	Image      sql.NullString
-	Request    string
-	CreatedAt  sql.NullTime
-	ApprovedAt sql.NullTime
-	DisabledAt sql.NullTime
+	Iri           string
+	Inbox         string
+	Name          sql.NullString
+	Username      string
+	Image         sql.NullString
+	Request       string
+	RequestObject []byte
+	CreatedAt     sql.NullTime
+	ApprovedAt    sql.NullTime
+	DisabledAt    sql.NullTime
 }
 
 type ApOutbox struct {