第一次提交

backend/migrations/create_execution_logs_table.sql

@@ -0,0 +1,17 @@
+-- 创建执行日志表
+CREATE TABLE IF NOT EXISTS execution_logs (
+    id CHAR(36) PRIMARY KEY COMMENT '日志ID',
+    execution_id CHAR(36) NOT NULL COMMENT '执行ID',
+    node_id VARCHAR(100) COMMENT '节点ID',
+    node_type VARCHAR(50) COMMENT '节点类型',
+    level VARCHAR(20) NOT NULL COMMENT '日志级别: INFO/WARN/ERROR/DEBUG',
+    message TEXT NOT NULL COMMENT '日志消息',
+    data JSON COMMENT '附加数据',
+    timestamp DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '时间戳',
+    duration INT COMMENT '执行耗时(ms)',
+    FOREIGN KEY (execution_id) REFERENCES executions(id) ON DELETE CASCADE,
+    INDEX idx_execution_id (execution_id),
+    INDEX idx_node_id (node_id),
+    INDEX idx_level (level),
+    INDEX idx_timestamp (timestamp)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='执行日志表';