feat(module-management): 导航状态化阶段二——表单设计「缺 N」徽标

- 复用既有 missingConfigCount 通用口径，新增 missingEditCount（启用字段
  未被 editConfig 任何行 b_field_id 引用的数量），子表表格编辑方式下同样成立
- configGroups 表单设计项挂「缺 N」徽标，样式与语义沿用查询配置；
  拖入画布后徽标消失
- spec 新增 4 用例：缺配计数、停用字段不计、b_field_id 类型不一致按字符串比较、空态为 0

code/fms/fms-vue/tests/unit/module-dirty-sections.spec.js

@@ -136,3 +136,40 @@ describe('useModuleConfig 脏检查', () => {
     expect(api.hasModuleChanges.value).toBe(false)
   })
 })
+
+describe('useModuleConfig 缺配统计（表单设计徽标）', () => {
+  function configWith(fields, editConfig) {
+    return { module: { b_id: '1', b_module_type: 'data' }, fields, groups: [], listConfig: [], editConfig, queryConfig: [], autoCode: [], powers: [] }
+  }
+
+  it('启用字段未被 editConfig 引用即计入缺配', () => {
+    const fields = [
+      { b_id: '10', b_field: 'a', b_canuse: 1 },
+      { b_id: '11', b_field: 'b', b_canuse: 1 },
+    ]
+    const editConfig = [{ b_id: 'e1', b_field_id: '10' }]
+    const { missingEditCount } = setup({ drafts: configWith(fields, editConfig), originals: configWith(fields, editConfig) })
+    expect(missingEditCount.value).toBe(1)
+  })
+
+  it('停用字段不计入缺配', () => {
+    const fields = [
+      { b_id: '10', b_field: 'a', b_canuse: 1 },
+      { b_id: '11', b_field: 'b', b_canuse: 0 },
+    ]
+    const { missingEditCount } = setup({ drafts: configWith(fields, []), originals: configWith(fields, []) })
+    expect(missingEditCount.value).toBe(1)
+  })
+
+  it('b_field_id 与 b_id 类型不一致（数字/字符串）仍按字符串比较', () => {
+    const fields = [{ b_id: 10, b_field: 'a', b_canuse: 1 }]
+    const editConfig = [{ b_id: 'e1', b_field_id: '10' }]
+    const { missingEditCount } = setup({ drafts: configWith(fields, editConfig), originals: configWith(fields, editConfig) })
+    expect(missingEditCount.value).toBe(0)
+  })
+
+  it('无字段时缺配为 0（新建模块空态不显示徽标）', () => {
+    const { missingEditCount } = setup({ drafts: configWith([], []), originals: configWith([], []) })
+    expect(missingEditCount.value).toBe(0)
+  })
+})