perf: 收敛工作流状态与高 IO 节点开销

- 落地 Redis 版本状态、触发租约和定义缓存

- 优化数据批写、插件请求、文件下载与审计日志

- 补齐循环范围校验、轮询兼容和专项测试

easyflow-commons/easyflow-common-base/src/main/java/tech/easyflow/common/constant/CacheKey.java

@@ -8,7 +8,19 @@ public interface CacheKey {
     String CHAIN_STATUS_CACHE_KEY = "chain:status:";
 
     String CHAIN_CACHE_KEY = "chainState:";
+    /**
+     * 工作流实例状态 CAS key 前缀；同实例状态使用 hash tag 保持同槽。
+     */
+    String CHAIN_STATE_CAS_KEY = "workflowState:";
+    String CHAIN_DEFINITION_SNAPSHOT_CACHE_KEY = "chainDefinitionSnapshot:";
+    String CHAIN_LOCK_KEY = "chainLock:";
     String NODE_CACHE_KEY = "nodeState:";
+    String LOOP_RESULT_CACHE_KEY = "loopResult:";
+    String TRIGGER_DATA_KEY = "workflowTrigger:data:";
+    String TRIGGER_CLAIM_KEY = "workflowTrigger:claim:";
+    String TRIGGER_DEAD_LETTER_KEY = "workflowTrigger:dead:";
+    String TRIGGER_PENDING_KEY = "workflowTrigger:pending";
+    String WORKFLOW_DEFINITION_VERSION_KEY = "workflowDefinition:version:";
 
     String OAUTH_STATE_KEY = "oauth:state:";
 }