feat: 收口知识库分享链路

- 新增 shareKey 单参数 URL 分享页与失效页

- 新增知识库分享后端鉴权、审计与迁移脚本

- 在访问令牌中增加知识库分享授权入口

easyflow-commons/easyflow-common-web/src/main/java/tech/easyflow/common/web/error/GlobalErrorResolver.java

@@ -34,7 +34,14 @@ public class GlobalErrorResolver implements HandlerExceptionResolver {
         } else if (ex instanceof ConstraintViolationException) {
             error = Result.fail(400, ex.getMessage());
         } else if (ex instanceof BusinessException) {
-            error = Result.fail(1, ex.getMessage());
+            String message = ex.getMessage();
+            if (message != null && message.matches("^\\d{4,}:.+$")) {
+                int delimiterIndex = message.indexOf(':');
+                int errorCode = Integer.parseInt(message.substring(0, delimiterIndex));
+                error = Result.fail(errorCode, message.substring(delimiterIndex + 1));
+            } else {
+                error = Result.fail(1, message);
+            }
         } else {
             LOG.error(ex.toString(), ex);
             error = Result.fail(1, "错误信息：" + ex.getMessage());