await fs.mkdir(path.dirname(configPath), { recursive: true });

const original = {

gateway: { mode: "local" },

channels: { feishu: { enabled: true } },

channels: { "test-plugin-channel": { enabled: true } },

};

const originalRaw = `${JSON.stringify(original, null, 2)}\n`;

await fs.writeFile(configPath, originalRaw, "utf-8");

mockLoadPluginManifestRegistry.mockImplementationOnce(() => {

throw new Error("manifest registry unavailable");

});

const io = createConfigIO({

env: { VITEST: "true" } as NodeJS.ProcessEnv,

homedir: () => home,

logger: silentLogger,

});

const io = createFastConfigIO(home);

const snapshot = await io.readConfigFileSnapshot();