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-ui-admin/app/vite.config.mts

@@ -26,6 +26,11 @@ export default defineConfig(async () => {
             target: 'http://127.0.0.1:8111',
             ws: true,
           },
+          '/flow/public-api': {
+            changeOrigin: true,
+            rewrite: (path) => path.replace(/^\/flow/, ''),
+            target: 'http://127.0.0.1:8111',
+          },
           '/flow/userCenter': {
             changeOrigin: true,
             rewrite: (path) => path.replace(/^\/flow/, ''),