feat: 添加工作流取消与临时文件管理功能

- 新增临时文件(FileTemp)的实体、DAO和DTO，支持文件临时存储与批量操作
- 实现工作流执行取消功能，使用sync.Map管理context.CancelFunc，支持按会话取消运行中的流程
- 将流程执行状态"暂停"变更为"取消"，并处理取消导致的错误
- 引入IsDialogue标识区分对话模式，调整判断/文案/图片节点的表单数据组装逻辑
- 重构ComposeMessagesReq，使用BuildType替代IsBuild和ModelTypeId
- 优化HTML内容提取逻辑，修复文案纯文本与图片URL的标签过滤及标签命名
- 在结果汇总节点中使用事务更新执行状态并批量保存输出文件记录

update.sql

@@ -279,6 +279,42 @@ COMMENT ON COLUMN black_deacon_creation_info.title IS '标题';
 
 --------------------pgsql创建creation_info表语句---------------------------
 
+--------------------pgsql创建black_deacon_file_temp表语句---------------------------
+-- 临时文件表
+CREATE TABLE IF NOT EXISTS black_deacon_file_temp (
+    -- 基础字段（完全对齐项目规范）
+                                                      id BIGINT PRIMARY KEY,
+                                                      tenant_id BIGINT NOT NULL DEFAULT 0,
+                                                      creator VARCHAR(64) NOT NULL,
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updater VARCHAR(64) NOT NULL,
+    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    deleted_at timestamp(6),
+
+    -- 业务字段
+    business_id VARCHAR(255) NOT NULL DEFAULT '',
+    file_url VARCHAR(512) NOT NULL DEFAULT ''
+    );
+
+-- 索引
+CREATE INDEX idx_file_temp_tenant_id ON black_deacon_file_temp(tenant_id);
+CREATE INDEX idx_file_temp_business_id ON black_deacon_file_temp(business_id);
+CREATE INDEX idx_file_temp_file_url ON black_deacon_file_temp(file_url);
+CREATE INDEX idx_file_temp_deleted_at ON black_deacon_file_temp(deleted_at);
+
+-- 注释
+COMMENT ON TABLE black_deacon_file_temp IS '临时文件表';
+COMMENT ON COLUMN black_deacon_file_temp.id IS '主键ID';
+COMMENT ON COLUMN black_deacon_file_temp.tenant_id IS '租户ID';
+COMMENT ON COLUMN black_deacon_file_temp.creator IS '创建人';
+COMMENT ON COLUMN black_deacon_file_temp.created_at IS '创建时间';
+COMMENT ON COLUMN black_deacon_file_temp.updater IS '更新人';
+COMMENT ON COLUMN black_deacon_file_temp.updated_at IS '更新时间';
+COMMENT ON COLUMN black_deacon_file_temp.deleted_at IS '删除时间（软删）';
+COMMENT ON COLUMN black_deacon_file_temp.business_id IS '业务ID';
+COMMENT ON COLUMN black_deacon_file_temp.file_url IS '文件地址';
+--------------------pgsql创建black_deacon_file_temp表语句---------------------------
+
 --------------------pgsql创建black_deacon_skill_template表语句---------------------------
 -- 技能模板表
 CREATE TABLE IF NOT EXISTS black_deacon_skill_template (
@@ -294,14 +330,12 @@ CREATE TABLE IF NOT EXISTS black_deacon_skill_template (
     -- 业务字段
     name VARCHAR(128) NOT NULL DEFAULT '',
     description TEXT DEFAULT '',
-    category VARCHAR(64) NOT NULL DEFAULT '',
     file_name VARCHAR(255) NOT NULL DEFAULT '',
     file_url VARCHAR(512) NOT NULL DEFAULT ''
     );
 
 -- 索引
 CREATE INDEX idx_skill_template_tenant_id ON black_deacon_skill_template(tenant_id);
-CREATE INDEX idx_skill_template_category ON black_deacon_skill_template(category);
 CREATE INDEX idx_skill_template_deleted_at ON black_deacon_skill_template(deleted_at);
 
 -- 注释
@@ -315,7 +349,6 @@ COMMENT ON COLUMN black_deacon_skill_template.updated_at IS '更新时间';
 COMMENT ON COLUMN black_deacon_skill_template.deleted_at IS '删除时间（软删）';
 COMMENT ON COLUMN black_deacon_skill_template.name IS '技能模板名称';
 COMMENT ON COLUMN black_deacon_skill_template.description IS '描述';
-COMMENT ON COLUMN black_deacon_skill_template.category IS '分类';
 COMMENT ON COLUMN black_deacon_skill_template.file_name IS '文件名称';
 COMMENT ON COLUMN black_deacon_skill_template.file_url IS '文件地址';
 --------------------pgsql创建black_deacon_skill_template表语句---------------------------
@@ -335,14 +368,12 @@ CREATE TABLE IF NOT EXISTS black_deacon_skill_user (
     -- 业务字段
     name VARCHAR(128) NOT NULL DEFAULT '',
     description TEXT DEFAULT '',
-    category VARCHAR(64) NOT NULL DEFAULT '',
     file_name VARCHAR(255) NOT NULL DEFAULT '',
     file_url VARCHAR(512) NOT NULL DEFAULT ''
     );
 
 -- 索引
 CREATE INDEX idx_skill_user_tenant_id ON black_deacon_skill_user(tenant_id);
-CREATE INDEX idx_skill_user_category ON black_deacon_skill_user(category);
 CREATE INDEX idx_skill_user_deleted_at ON black_deacon_skill_user(deleted_at);
 
 -- 注释
@@ -356,7 +387,6 @@ COMMENT ON COLUMN black_deacon_skill_user.updated_at IS '更新时间';
 COMMENT ON COLUMN black_deacon_skill_user.deleted_at IS '删除时间（软删）';
 COMMENT ON COLUMN black_deacon_skill_user.name IS '技能名称';
 COMMENT ON COLUMN black_deacon_skill_user.description IS '描述';
-COMMENT ON COLUMN black_deacon_skill_user.category IS '分类';
 COMMENT ON COLUMN black_deacon_skill_user.file_name IS '文件名称';
 COMMENT ON COLUMN black_deacon_skill_user.file_url IS '文件地址';
 --------------------pgsql创建black_deacon_skill_user表语句---------------------------