fix: hide batching in bridge instructions

test/bridge.test.ts

@@ -188,6 +188,9 @@ test("MCP approval_login returns both portable text and a standard resource link
     assert.equal(link?.uri, "https://approval.example.test/oauth/device?user_code=LINK-2345");
     assert.equal((response.structuredContent as any).result.authChallenge.directUrl, link?.uri);
     const tools = await client.listTools();
+    const instructions = client.getInstructions() ?? "";
+    assert.match(instructions, /审批引用.*调用容量.*内部分批.*不得向用户解释/);
+    assert.doesNotMatch(instructions, /最多.*20|selectionId|approvalId|targetId/);
     const history = tools.tools.find((tool) => tool.name === "approval_list_history")!;
     assert.equal((history.inputSchema as any).properties.startDate.default, "");
     assert.equal((history.inputSchema as any).properties.endDate.default, "");