chore(init): 初始化解忧商行项目并完成 Phase 0 基座

backend/migrations/000014_push_channels_rules.sql

@@ -0,0 +1,37 @@
+-- +goose Up
+-- +goose StatementBegin
+
+CREATE TABLE IF NOT EXISTS push_channels (
+  id BIGINT UNSIGNED PRIMARY KEY AUTO_INCREMENT,
+  name VARCHAR(64) NOT NULL COMMENT '渠道名称',
+  type VARCHAR(32) NOT NULL COMMENT '渠道类型：bark / wpush',
+  config JSON NOT NULL COMMENT '渠道配置',
+  enabled TINYINT(1) NOT NULL DEFAULT 1 COMMENT '是否启用',
+  created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='推送渠道配置';
+
+CREATE TABLE IF NOT EXISTS push_rules (
+  id BIGINT UNSIGNED PRIMARY KEY AUTO_INCREMENT,
+  event VARCHAR(64) NOT NULL COMMENT '事件类型',
+  enabled TINYINT(1) NOT NULL DEFAULT 1 COMMENT '是否启用',
+  threshold INT NOT NULL DEFAULT 5 COMMENT '阈值',
+  message_template VARCHAR(255) NOT NULL DEFAULT '' COMMENT '消息模板',
+  created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  UNIQUE KEY uk_push_rules_event (event)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='推送通知规则';
+
+INSERT INTO push_rules (event, enabled, threshold, message_template) VALUES
+('qrcode_low_stock', 1, 5, '企业微信群二维码库存不足（剩余 {{.Count}} 张），请及时补充')
+ON DUPLICATE KEY UPDATE threshold = VALUES(threshold);
+
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+
+DROP TABLE IF EXISTS push_rules;
+DROP TABLE IF EXISTS push_channels;
+
+-- +goose StatementEnd