fix: use build-info for version fallback

src/version.ts

@@ -12,6 +12,16 @@ function readVersionFromPackageJson(): string | null {
   }
 }
 
+function readVersionFromBuildInfo(): string | null {
+  try {
+    const require = createRequire(import.meta.url);
+    const info = require("../build-info.json") as { version?: string };
+    return info.version ?? null;
+  } catch {
+    return null;
+  }
+}
+
 // Single source of truth for the current OpenClaw version.
 // - Embedded/bundled builds: injected define or env var.
 // - Dev/npm builds: package.json.
@@ -19,4 +29,5 @@ export const VERSION =
   (typeof __OPENCLAW_VERSION__ === "string" && __OPENCLAW_VERSION__) ||
   process.env.OPENCLAW_BUNDLED_VERSION ||
   readVersionFromPackageJson() ||
+  readVersionFromBuildInfo() ||
   "0.0.0";