fix: 修复 rebase 后重复 clearBrandImage 声明 + 测试加 dismissDialog

- 删除 MyDiary.vue 重复的 clearBrandImage 函数（rebase 遗留）
- 测试加 dismissDialog() 关闭 CI 中 API 错误弹出的 dialog

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/cypress/e2e/recipe-detail.cy.js

@@ -1,36 +1,47 @@
+// Helper: dismiss any CustomDialog that may appear (e.g. API errors in CI)
+function dismissDialog() {
+  cy.get('body').then($body => {
+    if ($body.find('.dialog-overlay').length) {
+      cy.get('.dialog-btn-primary').click()
+      cy.get('.dialog-overlay').should('not.exist')
+    }
+  })
+}
+
 describe('Recipe Detail', () => {
   beforeEach(() => {
     cy.visit('/')
     cy.get('.recipe-card', { timeout: 10000 }).should('have.length.gte', 1)
+    dismissDialog()
   })
 
   it('opens detail panel when clicking a recipe card', () => {
     cy.get('.recipe-card').first().click()
+    dismissDialog()
     cy.get('.detail-overlay').should('be.visible')
   })
 
   it('shows recipe name in detail view', () => {
-    cy.get('.recipe-card').first().invoke('text').then(cardText => {
     cy.get('.recipe-card').first().click()
-      cy.wait(500)
+    dismissDialog()
     cy.get('.detail-overlay').should('be.visible')
   })
-  })
 
   it('shows ingredient info with drops', () => {
     cy.get('.recipe-card').first().click()
-    cy.wait(500)
+    dismissDialog()
     cy.contains('滴').should('exist')
   })
 
   it('shows cost with ¥ symbol', () => {
     cy.get('.recipe-card').first().click()
-    cy.wait(500)
+    dismissDialog()
     cy.contains('¥').should('exist')
   })
 
   it('closes detail panel when clicking close button', () => {
     cy.get('.recipe-card').first().click()
+    dismissDialog()
     cy.get('.detail-overlay').should('be.visible')
     cy.get('button').contains(/✕|关闭/).first().click()
     cy.get('.recipe-card').should('be.visible')
@@ -38,8 +49,8 @@ describe('Recipe Detail', () => {
 
   it('shows action buttons in detail', () => {
     cy.get('.recipe-card').first().click()
-    cy.wait(500)
-    cy.get('[class*="detail"] button').should('have.length.gte', 1)
+    dismissDialog()
+    cy.get('.detail-overlay button').should('have.length.gte', 1)
   })
 
   it('shows favorite star on recipe cards', () => {
@@ -57,10 +68,12 @@ describe('Recipe Detail - Editor (Admin)', () => {
       }
     })
     cy.get('.recipe-card', { timeout: 10000 }).should('have.length.gte', 1)
+    dismissDialog()
   })
 
   it('shows editable ingredients table in editor tab', () => {
     cy.get('.recipe-card').first().click()
+    dismissDialog()
     cy.get('.detail-overlay', { timeout: 5000 }).should('be.visible')
     cy.get('.detail-overlay').then($el => {
       if ($el.find(':contains("编辑")').filter('button').length) {
@@ -74,6 +87,7 @@ describe('Recipe Detail - Editor (Admin)', () => {
 
   it('shows add ingredient button in editor tab', () => {
     cy.get('.recipe-card').first().click()
+    dismissDialog()
     cy.get('.detail-overlay', { timeout: 5000 }).should('be.visible')
     cy.get('.detail-overlay').then($el => {
       if ($el.find(':contains("编辑")').filter('button').length) {
@@ -87,6 +101,7 @@ describe('Recipe Detail - Editor (Admin)', () => {
 
   it('shows save image button', () => {
     cy.get('.recipe-card').first().click()
+    dismissDialog()
     cy.get('.detail-overlay', { timeout: 5000 }).should('be.visible')
     cy.contains('保存图片').should('exist')
   })

frontend/src/views/MyDiary.vue

@@ -574,26 +574,6 @@ async function clearBrandImage(type) {
   }
 }
 
-async function clearBrandImage(type) {
-  const fieldMap = { logo: 'brand_logo', bg: 'brand_bg', qr: 'qr_code' }
-  const field = fieldMap[type]
-  if (!field) return
-  try {
-    const res = await api('/api/brand', {
-      method: 'PUT',
-      body: JSON.stringify({ [field]: '' }),
-    })
-    if (res.ok) {
-      if (type === 'logo') brandLogo.value = ''
-      else if (type === 'bg') brandBg.value = ''
-      else if (type === 'qr') brandQrImage.value = ''
-      ui.showToast('已清除')
-    }
-  } catch {
-    ui.showToast('清除失败')
-  }
-}
-
 // Account
 async function updateDisplayName() {
   try {