fix(plugins): allow hardlinks for bundled plugins (fixes #28175, #28404) (openclaw#32119) thanks @markfietje

Verified:
- pnpm install --frozen-lockfile
- pnpm build
- pnpm check
- pnpm test:macmini

Co-authored-by: markfietje <4325889+markfietje@users.noreply.github.com>
Co-authored-by: Tak Hoffman <781889+Takhoffman@users.noreply.github.com>

src/plugins/discovery.ts

@@ -225,12 +225,13 @@ function shouldIgnoreScannedDirectory(dirName: string): boolean {
   return false;
 }
 
-function readPackageManifest(dir: string): PackageManifest | null {
+function readPackageManifest(dir: string, rejectHardlinks = true): PackageManifest | null {
   const manifestPath = path.join(dir, "package.json");
   const opened = openBoundaryFileSync({
     absolutePath: manifestPath,
     rootPath: dir,
     boundaryLabel: "plugin package directory",
+    rejectHardlinks,
   });
   if (!opened.ok) {
     return null;
@@ -318,12 +319,14 @@ function resolvePackageEntrySource(params: {
   entryPath: string;
   sourceLabel: string;
   diagnostics: PluginDiagnostic[];
+  rejectHardlinks?: boolean;
 }): string | null {
   const source = path.resolve(params.packageDir, params.entryPath);
   const opened = openBoundaryFileSync({
     absolutePath: source,
     rootPath: params.packageDir,
     boundaryLabel: "plugin package directory",
+    rejectHardlinks: params.rejectHardlinks ?? true,
   });
   if (!opened.ok) {
     params.diagnostics.push({
@@ -387,7 +390,8 @@ function discoverInDirectory(params: {
       continue;
     }
 
-    const manifest = readPackageManifest(fullPath);
+    const rejectHardlinks = params.origin !== "bundled";
+    const manifest = readPackageManifest(fullPath, rejectHardlinks);
     const extensionResolution = resolvePackageExtensionEntries(manifest ?? undefined);
     const extensions = extensionResolution.status === "ok" ? extensionResolution.entries : [];
 
@@ -398,6 +402,7 @@ function discoverInDirectory(params: {
           entryPath: extPath,
           sourceLabel: fullPath,
           diagnostics: params.diagnostics,
+          rejectHardlinks,
         });
         if (!resolved) {
           continue;
@@ -488,7 +493,8 @@ function discoverFromPath(params: {
   }
 
   if (stat.isDirectory()) {
-    const manifest = readPackageManifest(resolved);
+    const rejectHardlinks = params.origin !== "bundled";
+    const manifest = readPackageManifest(resolved, rejectHardlinks);
     const extensionResolution = resolvePackageExtensionEntries(manifest ?? undefined);
     const extensions = extensionResolution.status === "ok" ? extensionResolution.entries : [];
 
@@ -499,6 +505,7 @@ function discoverFromPath(params: {
           entryPath: extPath,
           sourceLabel: resolved,
           diagnostics: params.diagnostics,
+          rejectHardlinks,
         });
         if (!source) {
           continue;