refactor(infra): dedupe openclaw root candidate scan

src/infra/openclaw-root.ts

@@ -87,19 +87,7 @@ export async function resolveOpenClawPackageRoot(opts: {
   argv1?: string;
   moduleUrl?: string;
 }): Promise<string | null> {
-  const candidates: string[] = [];
-
-  if (opts.moduleUrl) {
-    candidates.push(path.dirname(fileURLToPath(opts.moduleUrl)));
-  }
-  if (opts.argv1) {
-    candidates.push(...candidateDirsFromArgv1(opts.argv1));
-  }
-  if (opts.cwd) {
-    candidates.push(opts.cwd);
-  }
-
-  for (const candidate of candidates) {
+  for (const candidate of buildCandidates(opts)) {
     const found = await findPackageRoot(candidate);
     if (found) {
       return found;
@@ -114,6 +102,17 @@ export function resolveOpenClawPackageRootSync(opts: {
   argv1?: string;
   moduleUrl?: string;
 }): string | null {
+  for (const candidate of buildCandidates(opts)) {
+    const found = findPackageRootSync(candidate);
+    if (found) {
+      return found;
+    }
+  }
+
+  return null;
+}
+
+function buildCandidates(opts: { cwd?: string; argv1?: string; moduleUrl?: string }): string[] {
   const candidates: string[] = [];
 
   if (opts.moduleUrl) {
@@ -126,12 +125,5 @@ export function resolveOpenClawPackageRootSync(opts: {
     candidates.push(opts.cwd);
   }
 
-  for (const candidate of candidates) {
-    const found = findPackageRootSync(candidate);
-    if (found) {
-      return found;
-    }
-  }
-
-  return null;
+  return candidates;
 }