fix(runtime): make dist-runtime staging idempotent

src/plugins/stage-bundled-plugin-runtime.test.ts

@@ -2,7 +2,7 @@ import fs from "node:fs";
 import os from "node:os";
 import path from "node:path";
 import { pathToFileURL } from "node:url";
-import { afterEach, describe, expect, it } from "vitest";
+import { afterEach, describe, expect, it, vi } from "vitest";
 import { stageBundledPluginRuntime } from "../../scripts/stage-bundled-plugin-runtime.mjs";
 import { discoverOpenClawPlugins } from "./discovery.js";
 import { loadPluginManifestRegistry } from "./manifest-registry.js";
@@ -329,4 +329,40 @@ describe("stageBundledPluginRuntime", () => {
 
     expect(fs.existsSync(path.join(repoRoot, "dist-runtime"))).toBe(false);
   });
+
+  it("tolerates EEXIST when an identical runtime symlink is materialized concurrently", () => {
+    const repoRoot = makeRepoRoot("openclaw-stage-bundled-runtime-eexist-");
+    const distPluginDir = path.join(repoRoot, "dist", "extensions", "feishu");
+    const distSkillDir = path.join(distPluginDir, "skills", "feishu-doc");
+    fs.mkdirSync(distSkillDir, { recursive: true });
+    fs.writeFileSync(path.join(distPluginDir, "index.js"), "export default {}\n", "utf8");
+    fs.writeFileSync(path.join(distSkillDir, "SKILL.md"), "# Feishu Doc\n", "utf8");
+
+    const realSymlinkSync = fs.symlinkSync.bind(fs);
+    const symlinkSpy = vi.spyOn(fs, "symlinkSync").mockImplementation(((target, link, type) => {
+      const linkPath = String(link);
+      if (linkPath.endsWith(path.join("skills", "feishu-doc", "SKILL.md"))) {
+        const err = Object.assign(new Error("file already exists"), { code: "EEXIST" });
+        realSymlinkSync(String(target), linkPath, type);
+        throw err;
+      }
+      return realSymlinkSync(String(target), linkPath, type);
+    }) as typeof fs.symlinkSync);
+
+    expect(() => stageBundledPluginRuntime({ repoRoot })).not.toThrow();
+
+    const runtimeSkillPath = path.join(
+      repoRoot,
+      "dist-runtime",
+      "extensions",
+      "feishu",
+      "skills",
+      "feishu-doc",
+      "SKILL.md",
+    );
+    expect(fs.lstatSync(runtimeSkillPath).isSymbolicLink()).toBe(true);
+    expect(fs.readFileSync(runtimeSkillPath, "utf8")).toBe("# Feishu Doc\n");
+
+    symlinkSpy.mockRestore();
+  });
 });