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loan-pricing/docs/superpowers/plans/2026-05-11-shangyu-pricing-field-adjustment-backend-plan.md

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Shangyu Pricing Field Adjustment Backend Implementation Plan

For agentic workers: Follow this repository's AGENTS.md: do not invoke using-superpowers or subagents during implementation unless the user explicitly requests them. Steps use checkbox (- [ ]) syntax for tracking.

Goal: Update the backend create-flow contract so businessType, couponRate, personal removed fields, and customer-type-specific collateral options match the approved Shangyu pricing spec.

Architecture: Keep the existing workflow creation API and entity flow. Add couponRate to the DTO/entity/model path, tighten service-layer validation in LoanPricingWorkflowServiceImpl, remove personal create dependencies on loanPurpose and bizProof, and update SQL schema files in place.

Tech Stack: Spring Boot, RuoYi, MyBatis Plus, Lombok, Jakarta Validation, JUnit 5, Mockito, MySQL SQL files.


File Structure

  • Modify: ruoyi-loan-pricing/src/main/java/com/ruoyi/loanpricing/domain/dto/PersonalLoanPricingCreateDTO.java
    • Change businessType values to 新增/存量新增/存量转贷.
    • Remove personal create DTO dependency on loanPurpose and bizProof.
    • Add couponRate.
  • Modify: ruoyi-loan-pricing/src/main/java/com/ruoyi/loanpricing/domain/dto/CorporateLoanPricingCreateDTO.java
    • Change businessType values to 新增/存量新增/存量转贷.
    • Expand collType values for corporate mortgage and pledge paths.
    • Add couponRate.
  • Modify: ruoyi-loan-pricing/src/main/java/com/ruoyi/loanpricing/domain/entity/LoanPricingWorkflow.java
    • Update businessType comment and add persisted couponRate.
  • Modify: ruoyi-loan-pricing/src/main/java/com/ruoyi/loanpricing/domain/dto/ModelInvokeDTO.java
    • Add couponRate only. Do not add businessType; the user excluded that model-input branch from this scope.
  • Modify: ruoyi-loan-pricing/src/main/java/com/ruoyi/loanpricing/util/LoanPricingConverter.java
    • Map couponRate.
    • Stop mapping removed personal fields from the personal create DTO.
  • Modify: ruoyi-loan-pricing/src/main/java/com/ruoyi/loanpricing/service/impl/LoanPricingWorkflowServiceImpl.java
    • Update business type validation.
    • Add collateral-option validation by custType + guarType.
    • Add required couponRate validation for 质押 + 存单质押.
  • Modify Test: ruoyi-loan-pricing/src/test/java/com/ruoyi/loanpricing/service/impl/LoanPricingWorkflowServiceImplTest.java
    • Add validation coverage and update existing create tests to set valid businessType.
  • Modify Test: ruoyi-loan-pricing/src/test/java/com/ruoyi/loanpricing/service/LoanPricingModelServicePersonalParamsTest.java
    • Remove old personal loanPurpose DTO expectations so Maven test compilation remains valid after DTO removal.
    • Keep loanTerm/loanLoop model assertions.
  • Create Test: ruoyi-loan-pricing/src/test/java/com/ruoyi/loanpricing/util/LoanPricingConverterTest.java
    • Confirm personal removed fields no longer drive conversion and couponRate maps.
  • Modify Test: ruoyi-loan-pricing/src/test/java/com/ruoyi/loanpricing/service/LoanPricingModelServiceTest.java
    • Confirm couponRate is copied into ModelInvokeDTO via the model invocation path.
  • Create: sql/add_coupon_rate_20260511.sql
    • Migration for existing databases.
  • Modify: sql/loan_pricing_workflow.sql
    • Add coupon_rate.
  • Modify: sql/loan_pricing_schema_20260328.sql
    • Add coupon_rate to loan_pricing_workflow.
  • Modify: sql/loan_pricing_prod_init_20260331.sql
    • Add coupon_rate to production init schema.

Task 1: Add Failing Backend Contract Tests

Files:

  • Modify Test: ruoyi-loan-pricing/src/test/java/com/ruoyi/loanpricing/service/impl/LoanPricingWorkflowServiceImplTest.java

  • Modify Test: ruoyi-loan-pricing/src/test/java/com/ruoyi/loanpricing/service/LoanPricingModelServicePersonalParamsTest.java

  • Create Test: ruoyi-loan-pricing/src/test/java/com/ruoyi/loanpricing/util/LoanPricingConverterTest.java

  • Modify Test: ruoyi-loan-pricing/src/test/java/com/ruoyi/loanpricing/service/LoanPricingModelServiceTest.java

  • Step 1: Update existing create tests with valid business type

In LoanPricingWorkflowServiceImplTest, every test that calls createLoanPricing must set:

workflow.setBusinessType("新增");

For tests using mortgage or pledge, also set an allowed collType for the matching custType.

  • Step 2: Update old personal parameter tests

In LoanPricingModelServicePersonalParamsTest, replace the old DTO field test:

Add the static import if it is not present:

import static org.junit.jupiter.api.Assertions.assertNull;
@Test
void shouldRemoveLoanPurposeAndKeepLoanTermInPersonalCreateDto() throws NoSuchFieldException {
    assertThrows(NoSuchFieldException.class,
            () -> PersonalLoanPricingCreateDTO.class.getDeclaredField("loanPurpose"));
    assertNotNull(PersonalLoanPricingCreateDTO.class.getDeclaredField("loanTerm"));
}

Replace the old converter test that called dto.setLoanPurpose(...):

@Test
void shouldMapLoanTermWithoutLoanPurposeFromPersonalDto() {
    PersonalLoanPricingCreateDTO dto = new PersonalLoanPricingCreateDTO();
    dto.setCustIsn("CUST001");
    dto.setCustName("张三");
    dto.setGuarType("信用");
    dto.setApplyAmt("100000");
    dto.setBusinessType("新增");
    dto.setLoanTerm("3");

    LoanPricingWorkflow workflow = LoanPricingConverter.toEntity(dto);

    assertNull(workflow.getLoanPurpose());
    assertNull(workflow.getBizProof());
    assertEquals("3", workflow.getLoanTerm());
}

In shouldInvokePersonalModelWithExpectedParams, remove:

workflow.setLoanPurpose("business");
workflow.setBizProof("true");

and remove these argument matcher clauses:

&& Objects.equals("business", dto.getLoanPurpose())
&& Objects.equals("1", dto.getBizProof())

Keep the existing loanTerm, loanLoop, collThirdParty, and collType assertions.

  • Step 3: Add failing business type and collateral validation tests

Add tests like:

@Test
void shouldRejectOldBusinessType() {
    LoanPricingWorkflow workflow = validPersonalWorkflow();
    workflow.setBusinessType("新客");

    ServiceException ex = assertThrows(ServiceException.class,
            () -> loanPricingWorkflowService.createLoanPricing(workflow));

    assertEquals("业务种类必须是:新增、存量新增、存量转贷之一", ex.getMessage());
}

@Test
void shouldRequireHistoryRateForStockTransfer() {
    LoanPricingWorkflow workflow = validCorporateWorkflow();
    workflow.setBusinessType("存量转贷");
    workflow.setLoanRateHistory(null);

    ServiceException ex = assertThrows(ServiceException.class,
            () -> loanPricingWorkflowService.createLoanPricing(workflow));

    assertEquals("请选择历史贷款合同", ex.getMessage());
}

@Test
void shouldRequireCouponRateForCertificatePledge() {
    LoanPricingWorkflow workflow = validPersonalWorkflow();
    workflow.setGuarType("质押");
    workflow.setCollType("存单质押");
    workflow.setCouponRate(null);

    ServiceException ex = assertThrows(ServiceException.class,
            () -> loanPricingWorkflowService.createLoanPricing(workflow));

    assertEquals("存单票面利率不能为空", ex.getMessage());
}

Add helper methods:

private LoanPricingWorkflow validPersonalWorkflow() {
    LoanPricingWorkflow workflow = new LoanPricingWorkflow();
    workflow.setCustType("个人");
    workflow.setCustIsn("P001");
    workflow.setCustName("张三");
    workflow.setIdNum("330102199001011234");
    workflow.setGuarType("信用");
    workflow.setApplyAmt("100000");
    workflow.setBusinessType("新增");
    return workflow;
}

private LoanPricingWorkflow validCorporateWorkflow() {
    LoanPricingWorkflow workflow = new LoanPricingWorkflow();
    workflow.setCustType("企业");
    workflow.setCustIsn("C001");
    workflow.setCustName("测试企业");
    workflow.setIdNum("91330100MA0000000X");
    workflow.setGuarType("信用");
    workflow.setApplyAmt("1000000");
    workflow.setBusinessType("新增");
    return workflow;
}
  • Step 4: Add failing allowed-option tests

Add focused tests:

@Test
void shouldAllowPersonalMortgageLineType() {
    LoanPricingWorkflow workflow = validPersonalWorkflow();
    workflow.setGuarType("抵押");
    workflow.setCollType("一线");

    when(sensitiveFieldCryptoService.encrypt(any())).thenAnswer(invocation -> invocation.getArgument(0));

    loanPricingWorkflowService.createLoanPricing(workflow);

    verify(loanPricingWorkflowMapper).insert(any());
}

@Test
void shouldRejectCorporateMortgageTypeForPersonalMortgage() {
    LoanPricingWorkflow workflow = validPersonalWorkflow();
    workflow.setGuarType("抵押");
    workflow.setCollType("排污权抵押");

    ServiceException ex = assertThrows(ServiceException.class,
            () -> loanPricingWorkflowService.createLoanPricing(workflow));

    assertEquals("个人抵押抵质押类型必须是:一线、一类、二类、三类之一", ex.getMessage());
}

@Test
void shouldAllowCorporatePledgeEquityType() {
    LoanPricingWorkflow workflow = validCorporateWorkflow();
    workflow.setGuarType("质押");
    workflow.setCollType("股权质押");

    when(sensitiveFieldCryptoService.encrypt(any())).thenAnswer(invocation -> invocation.getArgument(0));

    loanPricingWorkflowService.createLoanPricing(workflow);

    verify(loanPricingWorkflowMapper).insert(any());
}
  • Step 5: Add failing converter test

Create LoanPricingConverterTest:

package com.ruoyi.loanpricing.util;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNull;

import com.ruoyi.loanpricing.domain.dto.CorporateLoanPricingCreateDTO;
import com.ruoyi.loanpricing.domain.dto.PersonalLoanPricingCreateDTO;
import com.ruoyi.loanpricing.domain.entity.LoanPricingWorkflow;
import org.junit.jupiter.api.Test;

class LoanPricingConverterTest {
    @Test
    void shouldMapCouponRateForPersonalWorkflow() {
        PersonalLoanPricingCreateDTO dto = new PersonalLoanPricingCreateDTO();
        dto.setCustIsn("P001");
        dto.setGuarType("质押");
        dto.setApplyAmt("100000");
        dto.setBusinessType("新增");
        dto.setCouponRate("2.15");

        LoanPricingWorkflow workflow = LoanPricingConverter.toEntity(dto);

        assertEquals("2.15", workflow.getCouponRate());
        assertNull(workflow.getLoanPurpose());
        assertNull(workflow.getBizProof());
    }

    @Test
    void shouldMapCouponRateForCorporateWorkflow() {
        CorporateLoanPricingCreateDTO dto = new CorporateLoanPricingCreateDTO();
        dto.setCustIsn("C001");
        dto.setGuarType("质押");
        dto.setApplyAmt("1000000");
        dto.setBusinessType("新增");
        dto.setCouponRate("2.35");

        LoanPricingWorkflow workflow = LoanPricingConverter.toEntity(dto);

        assertEquals("2.35", workflow.getCouponRate());
    }
}
  • Step 6: Add failing model DTO test

In LoanPricingModelServiceTest, add a test or extend the existing argument-captor test to assert:

assertEquals("2.15", capturedModelInvokeDto.getCouponRate());

The workflow used by that test must set:

loanPricingWorkflow.setCouponRate("2.15");
loanPricingWorkflow.setBusinessType("新增");
  • Step 7: Run backend tests and confirm failure

Run:

mvn -pl ruoyi-loan-pricing -am -Dtest=LoanPricingWorkflowServiceImplTest,LoanPricingModelServicePersonalParamsTest,LoanPricingConverterTest,LoanPricingModelServiceTest -Dsurefire.failIfNoSpecifiedTests=false test

Expected: FAIL because couponRate and new validation are not implemented yet.

Task 2: Implement DTO, Entity, Converter, and Model DTO Fields

Files:

  • Modify: ruoyi-loan-pricing/src/main/java/com/ruoyi/loanpricing/domain/dto/PersonalLoanPricingCreateDTO.java

  • Modify: ruoyi-loan-pricing/src/main/java/com/ruoyi/loanpricing/domain/dto/CorporateLoanPricingCreateDTO.java

  • Modify: ruoyi-loan-pricing/src/main/java/com/ruoyi/loanpricing/domain/entity/LoanPricingWorkflow.java

  • Modify: ruoyi-loan-pricing/src/main/java/com/ruoyi/loanpricing/domain/dto/ModelInvokeDTO.java

  • Modify: ruoyi-loan-pricing/src/main/java/com/ruoyi/loanpricing/util/LoanPricingConverter.java

  • Modify Test: ruoyi-loan-pricing/src/test/java/com/ruoyi/loanpricing/service/LoanPricingModelServicePersonalParamsTest.java

  • Step 1: Update personal create DTO

In PersonalLoanPricingCreateDTO:

  • Remove the loanPurpose field and its validation annotations.
  • Remove the bizProof field.
  • Change businessType annotations to:
@Schema(description = "业务种类", requiredMode = Schema.RequiredMode.REQUIRED, example = "新增", allowableValues = {"新增", "存量新增", "存量转贷"})
@NotBlank(message = "业务种类不能为空")
@Pattern(regexp = "^(新增|存量新增|存量转贷)$", message = "业务种类必须是:新增、存量新增、存量转贷之一")
private String businessType;
  • Add:
@Schema(description = "存单票面利率", example = "2.15")
private String couponRate;
  • Step 2: Update corporate create DTO

In CorporateLoanPricingCreateDTO:

@Schema(description = "业务种类", requiredMode = Schema.RequiredMode.REQUIRED, example = "新增", allowableValues = {"新增", "存量新增", "存量转贷"})
@NotBlank(message = "业务种类不能为空")
@Pattern(regexp = "^(新增|存量新增|存量转贷)$", message = "业务种类必须是:新增、存量新增、存量转贷之一")
private String businessType;

Change collType annotation to include the combined corporate option set:

@Schema(description = "抵质押类型", example = "一类", allowableValues = {"一类", "二类", "三类", "四类", "排污权抵押", "设备等其他不动产抵押", "存单质押", "股权质押", "其他质押"})
@Pattern(regexp = "^(一类|二类|三类|四类|排污权抵押|设备等其他不动产抵押|存单质押|股权质押|其他质押)$", message = "抵质押类型不符合当前客户类型和担保方式")
private String collType;

Add:

@Schema(description = "存单票面利率", example = "2.35")
private String couponRate;
  • Step 3: Update workflow entity

In LoanPricingWorkflow:

/** 业务种类: 新增/存量新增/存量转贷 */
private String businessType;

/** 存单票面利率 */
private String couponRate;

Keep loanPurpose and bizProof on the entity for historical rows and existing schema compatibility; they are no longer populated by personal create DTO conversion.

  • Step 4: Update model DTO

In ModelInvokeDTO, add:

/**
 * 存单票面利率
 */
private String couponRate;

Do not add businessType in this task.

  • Step 5: Update converter

In personal conversion, remove:

entity.setLoanPurpose(dto.getLoanPurpose());
entity.setBizProof(dto.getBizProof());

Add for both personal and corporate conversion:

entity.setCouponRate(dto.getCouponRate());
  • Step 6: Run targeted converter and model tests

Run:

mvn -pl ruoyi-loan-pricing -am -Dtest=LoanPricingModelServicePersonalParamsTest,LoanPricingConverterTest,LoanPricingModelServiceTest -Dsurefire.failIfNoSpecifiedTests=false test

Expected: personal parameter, converter, and model field tests PASS; service validation tests may still fail until Task 3.

  • Step 7: Commit field and converter changes
git add ruoyi-loan-pricing/src/main/java/com/ruoyi/loanpricing/domain/dto/PersonalLoanPricingCreateDTO.java \
  ruoyi-loan-pricing/src/main/java/com/ruoyi/loanpricing/domain/dto/CorporateLoanPricingCreateDTO.java \
  ruoyi-loan-pricing/src/main/java/com/ruoyi/loanpricing/domain/entity/LoanPricingWorkflow.java \
  ruoyi-loan-pricing/src/main/java/com/ruoyi/loanpricing/domain/dto/ModelInvokeDTO.java \
  ruoyi-loan-pricing/src/main/java/com/ruoyi/loanpricing/util/LoanPricingConverter.java \
  ruoyi-loan-pricing/src/test/java/com/ruoyi/loanpricing/service/LoanPricingModelServicePersonalParamsTest.java \
  ruoyi-loan-pricing/src/test/java/com/ruoyi/loanpricing/util/LoanPricingConverterTest.java \
  ruoyi-loan-pricing/src/test/java/com/ruoyi/loanpricing/service/LoanPricingModelServiceTest.java
git commit -m "调整上虞利率定价后端字段"

Task 3: Implement Service-Layer Validation

Files:

  • Modify: ruoyi-loan-pricing/src/main/java/com/ruoyi/loanpricing/service/impl/LoanPricingWorkflowServiceImpl.java

  • Modify Test: ruoyi-loan-pricing/src/test/java/com/ruoyi/loanpricing/service/impl/LoanPricingWorkflowServiceImplTest.java

  • Step 1: Replace business type validation

Update validateBusinessTypeAndHistoryRate:

private void validateBusinessTypeAndHistoryRate(LoanPricingWorkflow workflow) {
    if (!StringUtils.hasText(workflow.getBusinessType())) {
        throw new ServiceException("业务种类不能为空");
    }
    if (!isOneOf(workflow.getBusinessType(), "新增", "存量新增", "存量转贷")) {
        throw new ServiceException("业务种类必须是:新增、存量新增、存量转贷之一");
    }
    if ("存量转贷".equals(workflow.getBusinessType())
            && !StringUtils.hasText(workflow.getLoanRateHistory())) {
        throw new ServiceException("请选择历史贷款合同");
    }
}
  • Step 2: Add collateral and coupon validators

Add calls before insert:

validateBusinessTypeAndHistoryRate(loanPricingWorkflow);
validateCollateralType(loanPricingWorkflow);
validateCouponRate(loanPricingWorkflow);

Add helper methods:

private void validateCouponRate(LoanPricingWorkflow workflow) {
    if ("质押".equals(workflow.getGuarType())
            && "存单质押".equals(workflow.getCollType())
            && !StringUtils.hasText(workflow.getCouponRate())) {
        throw new ServiceException("存单票面利率不能为空");
    }
}

private void validateCollateralType(LoanPricingWorkflow workflow) {
    if (!"抵押".equals(workflow.getGuarType()) && !"质押".equals(workflow.getGuarType())) {
        return;
    }
    if (!StringUtils.hasText(workflow.getCollType())) {
        throw new ServiceException("请选择抵质押类型");
    }
    if ("个人".equals(workflow.getCustType()) && "抵押".equals(workflow.getGuarType())
            && !isOneOf(workflow.getCollType(), "一线", "一类", "二类", "三类")) {
        throw new ServiceException("个人抵押抵质押类型必须是:一线、一类、二类、三类之一");
    }
    if ("个人".equals(workflow.getCustType()) && "质押".equals(workflow.getGuarType())
            && !isOneOf(workflow.getCollType(), "存单质押", "其他质押")) {
        throw new ServiceException("个人质押抵质押类型必须是:存单质押、其他质押之一");
    }
    if ("企业".equals(workflow.getCustType()) && "抵押".equals(workflow.getGuarType())
            && !isOneOf(workflow.getCollType(), "一类", "二类", "三类", "四类", "排污权抵押", "设备等其他不动产抵押")) {
        throw new ServiceException("企业抵押抵质押类型必须是:一类、二类、三类、四类、排污权抵押、设备等其他不动产抵押之一");
    }
    if ("企业".equals(workflow.getCustType()) && "质押".equals(workflow.getGuarType())
            && !isOneOf(workflow.getCollType(), "存单质押", "股权质押", "其他质押")) {
        throw new ServiceException("企业质押抵质押类型必须是:存单质押、股权质押、其他质押之一");
    }
}

private boolean isOneOf(String value, String... allowedValues) {
    for (String allowedValue : allowedValues) {
        if (allowedValue.equals(value)) {
            return true;
        }
    }
    return false;
}
  • Step 3: Run service tests

Run:

mvn -pl ruoyi-loan-pricing -am -Dtest=LoanPricingWorkflowServiceImplTest -Dsurefire.failIfNoSpecifiedTests=false test

Expected: PASS.

  • Step 4: Run backend targeted suite

Run:

mvn -pl ruoyi-loan-pricing -am -Dtest=LoanPricingWorkflowServiceImplTest,LoanPricingModelServicePersonalParamsTest,LoanPricingConverterTest,LoanPricingModelServiceTest -Dsurefire.failIfNoSpecifiedTests=false test

Expected: PASS.

  • Step 5: Commit validation changes
git add ruoyi-loan-pricing/src/main/java/com/ruoyi/loanpricing/service/impl/LoanPricingWorkflowServiceImpl.java \
  ruoyi-loan-pricing/src/test/java/com/ruoyi/loanpricing/service/impl/LoanPricingWorkflowServiceImplTest.java
git commit -m "增加上虞利率定价创建校验"

Task 4: Update SQL Schema Files

Files:

  • Create: sql/add_coupon_rate_20260511.sql

  • Modify: sql/loan_pricing_workflow.sql

  • Modify: sql/loan_pricing_schema_20260328.sql

  • Modify: sql/loan_pricing_prod_init_20260331.sql

  • Step 1: Create migration SQL

Create sql/add_coupon_rate_20260511.sql:

-- 上虞利率定价存单票面利率字段
ALTER TABLE `loan_pricing_workflow`
  ADD COLUMN `coupon_rate` varchar(100) DEFAULT NULL COMMENT '存单票面利率' AFTER `loan_rate_history`;
  • Step 2: Update standalone workflow schema

In sql/loan_pricing_workflow.sql, add after loan_rate_history:

  `coupon_rate` varchar(100) DEFAULT NULL COMMENT '存单票面利率',
  • Step 3: Update bundled schema files

Apply the same column to the loan_pricing_workflow table definitions in:

  • sql/loan_pricing_schema_20260328.sql

  • sql/loan_pricing_prod_init_20260331.sql

  • Step 4: Verify SQL references

Run:

rg -n "coupon_rate|存单票面利率" sql

Expected: coupon_rate appears in the migration and all three schema/init files.

  • Step 5: Commit SQL changes
git add sql/add_coupon_rate_20260511.sql \
  sql/loan_pricing_workflow.sql \
  sql/loan_pricing_schema_20260328.sql \
  sql/loan_pricing_prod_init_20260331.sql
git commit -m "新增存单票面利率数据库字段"

Task 5: Backend Verification and Record

Files:

  • Create or Modify: doc/implementation-report-2026-05-11-shangyu-pricing-field-adjustment.md

  • Step 1: Run backend verification

Run:

mvn -pl ruoyi-loan-pricing -am -Dtest=LoanPricingWorkflowServiceImplTest,LoanPricingModelServicePersonalParamsTest,LoanPricingConverterTest,LoanPricingModelServiceTest -Dsurefire.failIfNoSpecifiedTests=false test

Expected: PASS.

  • Step 2: Check staged-independent status

Run:

git status --short

Expected: only intended backend and SQL files are modified or staged for this implementation slice. Existing unrelated files such as AGENTS.md, .DS_Store, and operation-manual docs must stay out of these commits.

  • Step 3: Update implementation record

Add backend notes to doc/implementation-report-2026-05-11-shangyu-pricing-field-adjustment.md:

## 后端实现

- 调整个人/企业创建 DTO 的业务种类口径为 `新增/存量新增/存量转贷`- 新增 `couponRate` 存单票面利率字段,并贯通流程保存和模型入参。
- 取消对私创建链路对 `loanPurpose``bizProof` 的依赖。
- 增加服务层校验,覆盖业务种类、历史贷款利率、抵质押类型和存单票面利率。
- 新增 `coupon_rate` 数据库字段及 schema/init SQL。

## 后端验证

- `mvn -pl ruoyi-loan-pricing -am -Dtest=LoanPricingWorkflowServiceImplTest,LoanPricingModelServicePersonalParamsTest,LoanPricingConverterTest,LoanPricingModelServiceTest -Dsurefire.failIfNoSpecifiedTests=false test`
  • Step 4: Commit backend record
git add doc/implementation-report-2026-05-11-shangyu-pricing-field-adjustment.md
git commit -m "记录上虞字段调整后端实现"