feat: ciphertrace cashout flow

migrations/1641486859782-wallet-scoring-cash-out.js

@@ -0,0 +1,13 @@
+var db = require('./db')
+
+exports.up = function (next) {
+  var sql = [
+    `ALTER TABLE cash_out_txs ADD COLUMN wallet_score SMALLINT`
+  ]
+
+  db.multi(sql, next)
+}
+
+exports.down = function (next) {
+  next()
+}