test: skip plugin tools in sessions tools test

src/agents/clawdbot-tools.sessions.test.ts

@@ -4,6 +4,9 @@ const callGatewayMock = vi.fn();
 vi.mock("../gateway/call.js", () => ({
   callGateway: (opts: unknown) => callGatewayMock(opts),
 }));
+vi.mock("../plugins/tools.js", () => ({
+  resolvePluginTools: () => [],
+}));
 
 vi.mock("../config/config.js", async (importOriginal) => {
   const actual = await importOriginal<typeof import("../config/config.js")>();