test: preload sandbox explain command module in suite

src/commands/sandbox-explain.test.ts

@@ -10,6 +10,8 @@ vi.mock("../config/config.js", async (importOriginal) => {
   };
 });
 
+const { sandboxExplainCommand } = await import("./sandbox-explain.js");
+
 describe("sandbox explain command", () => {
   it("prints JSON shape + fix-it keys", async () => {
     mockCfg = {
@@ -25,8 +27,6 @@ describe("sandbox explain command", () => {
       session: { store: "/tmp/openclaw-test-sessions-{agentId}.json" },
     };
 
-    const { sandboxExplainCommand } = await import("./sandbox-explain.js");
-
     const logs: string[] = [];
     await sandboxExplainCommand({ json: true, session: "agent:main:main" }, {
       log: (msg: string) => logs.push(msg),