fix: preserve delivered page links when auto images fail

tkmind-proxy.mjs

@@ -503,6 +503,25 @@ function buildMissingPublicHtmlNotice(filename) {
   return `（页面生成未完成，已阻止显示失效链接：${filename || '页面'}。）`;
 }
 
+function publicHtmlRootsForUser(owner) {
+  const roots = [
+    path.resolve(process.cwd(), PUBLISH_ROOT_DIR, owner),
+  ];
+  const sharedPublishRoots = [
+    process.env.GOOSED_SANDBOX_PUBLISH_ROOT,
+    process.env.MEMIND_SHARED_PUBLISH_ROOT,
+  ];
+  for (const configuredRoot of sharedPublishRoots) {
+    const value = String(configuredRoot ?? '').trim();
+    if (value) roots.push(path.resolve(value, owner));
+  }
+  const usersRoot = String(process.env.H5_USERS_ROOT ?? '').trim();
+  if (usersRoot) {
+    roots.push(path.resolve(path.dirname(usersRoot), PUBLISH_ROOT_DIR, owner));
+  }
+  return [...new Set(roots)];
+}
+
 function publicHtmlExistsForUser(owner, relativePath, currentUser) {
   const normalizedOwner = String(owner ?? '').trim().toLowerCase();
   const normalizedUserId = String(currentUser?.id ?? '').trim().toLowerCase();
@@ -511,10 +530,12 @@ function publicHtmlExistsForUser(owner, relativePath, currentUser) {
   if (normalizedOwner !== normalizedUserId && normalizedOwner !== normalizedUsername) return true;
   const normalizedRelativePath = normalizeStaticHtmlRelativePath(relativePath);
   if (!normalizedRelativePath || !normalizedRelativePath.toLowerCase().endsWith('.html')) return false;
-  const root = path.resolve(process.cwd(), PUBLISH_ROOT_DIR, normalizedOwner);
-  const target = path.resolve(root, normalizedRelativePath);
-  if (target !== root && !target.startsWith(`${root}${path.sep}`)) return false;
-  return fs.existsSync(target) && fs.statSync(target).isFile();
+  for (const root of publicHtmlRootsForUser(normalizedOwner)) {
+    const target = path.resolve(root, normalizedRelativePath);
+    if (target !== root && !target.startsWith(`${root}${path.sep}`)) continue;
+    if (fs.existsSync(target) && fs.statSync(target).isFile()) return true;
+  }
+  return false;
 }
 
 function sanitizeOwnPublicHtmlUrl(publicUrl, owner, rawRelativePath, currentUser) {