feat: 完成工作流 Public API 授权闭环

- 新增访问令牌工作流 API 全局授权与 Public Workflow API 权限断言

- 补齐 API Key 执行记录归属、状态查询与下线后不可恢复边界

- 增加管理端接口调用说明与访问令牌授权开关

easyflow-modules/easyflow-module-system/src/main/java/tech/easyflow/system/entity/SysApiKey.java

@@ -26,6 +26,9 @@ public class SysApiKey extends SysApiKeyBase {
     @Column(ignore = true)
     private Boolean knowledgeShareEnabled;
 
+    @Column(ignore = true)
+    private Boolean workflowApiEnabled;
+
     @RelationOneToMany(selfField = "id", targetField = "apiKeyId", targetTable = "tb_sys_api_key_resource_mapping")
     private List<SysApiKeyResourceMapping> resourcePermissions;
 
@@ -52,4 +55,12 @@ public class SysApiKey extends SysApiKeyBase {
     public void setKnowledgeShareEnabled(Boolean knowledgeShareEnabled) {
         this.knowledgeShareEnabled = knowledgeShareEnabled;
     }
+
+    public Boolean getWorkflowApiEnabled() {
+        return workflowApiEnabled;
+    }
+
+    public void setWorkflowApiEnabled(Boolean workflowApiEnabled) {
+        this.workflowApiEnabled = workflowApiEnabled;
+    }
 }