feat: 添加短信验证码发送记录功能

backend_v1/database/migrations/20251223170000_create_sms_code_sends.sql

@@ -0,0 +1,18 @@
+-- +goose Up
+-- +goose StatementBegin
+CREATE TABLE sms_code_sends(
+    id SERIAL8 PRIMARY KEY,
+    phone varchar(20) NOT NULL,
+    code varchar(20) NOT NULL,
+    sent_at timestamp NOT NULL DEFAULT now(),
+    expires_at timestamp NOT NULL
+);
+
+CREATE INDEX idx_sms_code_sends_phone ON sms_code_sends(phone);
+CREATE INDEX idx_sms_code_sends_sent_at ON sms_code_sends(sent_at);
+-- +goose StatementEnd
+-- +goose Down
+-- +goose StatementBegin
+DROP TABLE sms_code_sends;
+-- +goose StatementEnd
+