feat(server/db): 数据层多库支持(1/4)— 连接分派 + 双方言迁移管线

- config 增 DB_DRIVER(mysql 默认 | sqlite);DSN 对 sqlite 为文件路径 - db.OpenDriver 按驱动分派:sqlite 用 modernc(纯 Go 免 CGO)+ WAL/ busy_timeout/foreign_keys/_txlock=immediate;mysql 路径不变 - store.Open 分派;mysql 保留 UTC/collation 断言,sqlite 跳过 - 迁移拆 migrations/{mysql,sqlite}/ 双套,embed 双 FS,migrate 按驱动选源与 golang-migrate 驱动;修复 m.Close() 误关调用方 *sql.DB 的坑 - cmd/migrate 串入 DB_DRIVER;集成测试 MigrateUp 签名更新 - 新增 SQLite 时间往返 smoke 测试与端到端迁移测试(免 docker) Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-18 00:01:03 +08:00
parent 9a028ab907
commit f3471ae139
63 changed files with 583 additions and 82 deletions
@@ -0,0 +1,20 @@
+-- 套餐与订阅（数字口径 = design/CLAUDE.md §7）
+CREATE TABLE plans (
+  id            BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
+  code          ENUM('free','pro','team') NOT NULL UNIQUE,
+  max_devices   INT NOT NULL,                      -- free 1 / pro 5 / team 10
+  daily_minutes INT NULL,                          -- free 10；NULL = 不限
+  ad_gate       BOOLEAN NOT NULL DEFAULT FALSE     -- free 每日看广告解锁
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE subscriptions (
+  id          BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
+  user_id     BIGINT UNSIGNED NOT NULL,
+  plan_id     BIGINT UNSIGNED NOT NULL,
+  expires_at  DATETIME(6) NOT NULL,
+  source      ENUM('trial','code') NOT NULL,       -- 注册自动 7 天试用 source='trial'
+  created_at  DATETIME(6) NOT NULL DEFAULT CURRENT_TIMESTAMP(6),
+  FOREIGN KEY (user_id) REFERENCES users(id),
+  FOREIGN KEY (plan_id) REFERENCES plans(id),
+  INDEX idx_user_exp (user_id, expires_at)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;