feat: expose user-readable expense types

test/server-instructions.test.ts

@@ -52,6 +52,8 @@ test("MCP initialization teaches the workflow while tools/list stays compact", a
     assert.match(client.getInstructions() ?? "", /恢复时.*实时读取 Schema/s);
     assert.match(client.getInstructions() ?? "", /自动清理超过 90 天/s);
     assert.match(client.getInstructions() ?? "", /outcome_uncertain.*冻结.*禁止自动重试/s);
+    assert.match(client.getInstructions() ?? "", /kind=expense_type.*只向用户展示.*label.*内部使用.*code/s);
+    assert.match(client.getInstructions() ?? "", /绝不向用户展示、解释或索取.*expenseNumber.*expenseTypeNumber.*expTypeCode/s);
 
     const tools = await client.listTools();
     assert.deepEqual(tools.tools.map((tool) => tool.name), [
@@ -83,7 +85,9 @@ test("MCP initialization teaches the workflow while tools/list stays compact", a
     assert.match(descriptions.approval_process_batch ?? "", /Schema容量.*不得转述给用户.*任一无效.*零写入/s);
     assert.match(descriptions.approval_prepare_submission ?? "", /明确确认|确认/);
     assert.match(descriptions.approval_get_submission_schema ?? "", /必填字段齐全.*可选字段/);
-    assert.match(descriptions.approval_get_submission_options ?? "", /承担部门.*城市编码/);
+    assert.match(descriptions.approval_get_submission_options ?? "", /承担部门.*城市.*费用类型.*只向用户展示label.*内部使用code/s);
+    const optionSchema = tools.tools.find((tool) => tool.name === "approval_get_submission_options")?.inputSchema as any;
+    assert.deepEqual(optionSchema.properties.kind.enum, ["department", "city", "expense_type"]);
     assert.match(descriptions.approval_prepare_submission ?? "", /继续询问/);
     assert.match(descriptions.approval_prepare_submission ?? "", /查重.*allowDuplicateInvoices/s);
     const prepareSchema = tools.tools.find((tool) => tool.name === "approval_prepare_submission")?.inputSchema as any;