diff --git a/frontend/cypress/e2e/endpoint-parity.cy.js b/frontend/cypress/e2e/endpoint-parity.cy.js
new file mode 100644
index 0000000..1d72471
--- /dev/null
+++ b/frontend/cypress/e2e/endpoint-parity.cy.js
@@ -0,0 +1,74 @@
+// Verify that Vue frontend pages call the correct backend API endpoints.
+// This test catches mismatched endpoint names (e.g. /api/bugs vs /api/bug-reports).
+
+const ADMIN_TOKEN = 'c86ae7afbe10fabe3c1d5e1a7fee74feaadfd5dc7be2ab62'
+
+describe('API Endpoint Parity', () => {
+  function visitAsAdmin(path) {
+    cy.visit(path, {
+      onBeforeLoad(win) {
+        win.localStorage.setItem('oil_auth_token', ADMIN_TOKEN)
+      }
+    })
+  }
+
+  it('search page loads recipes from /api/recipes', () => {
+    cy.intercept('GET', '/api/recipes').as('recipes')
+    visitAsAdmin('/')
+    cy.wait('@recipes').its('response.statusCode').should('eq', 200)
+  })
+
+  it('search page loads oils from /api/oils', () => {
+    cy.intercept('GET', '/api/oils').as('oils')
+    visitAsAdmin('/')
+    cy.wait('@oils').its('response.statusCode').should('eq', 200)
+  })
+
+  it('oil reference page loads oils', () => {
+    cy.intercept('GET', '/api/oils').as('oils')
+    visitAsAdmin('/oils')
+    cy.wait('@oils').its('response.statusCode').should('eq', 200)
+  })
+
+  it('audit log page loads from /api/audit-log', () => {
+    cy.intercept('GET', '/api/audit-log*').as('audit')
+    visitAsAdmin('/audit')
+    cy.wait('@audit').its('response.statusCode').should('eq', 200)
+  })
+
+  it('audit log page does NOT call /api/audit-logs (wrong endpoint)', () => {
+    cy.intercept('GET', '/api/audit-logs*').as('wrongAudit')
+    visitAsAdmin('/audit')
+    cy.wait(2000)
+    cy.get('@wrongAudit.all').should('have.length', 0)
+  })
+
+  it('bug tracker page loads from /api/bug-reports', () => {
+    cy.intercept('GET', '/api/bug-reports').as('bugs')
+    visitAsAdmin('/bugs')
+    cy.wait('@bugs').its('response.statusCode').should('eq', 200)
+  })
+
+  it('bug tracker page does NOT call /api/bugs (wrong endpoint)', () => {
+    cy.intercept('GET', '/api/bugs').as('wrongBugs')
+    visitAsAdmin('/bugs')
+    cy.wait(2000)
+    cy.get('@wrongBugs.all').should('have.length', 0)
+  })
+
+  it('user management page loads from /api/users', () => {
+    cy.intercept('GET', '/api/users').as('users')
+    visitAsAdmin('/users')
+    cy.wait('@users').its('response.statusCode').should('eq', 200)
+  })
+
+  it('categories load from /api/categories', () => {
+    cy.intercept('GET', '/api/categories').as('cats')
+    visitAsAdmin('/')
+    cy.wait(3000)
+    // Categories may or may not be fetched depending on page logic
+    // Just verify no /api/category-modules calls
+    cy.intercept('GET', '/api/category-modules').as('wrongCats')
+    cy.get('@wrongCats.all').should('have.length', 0)
+  })
+})
diff --git a/frontend/cypress/support/e2e.js b/frontend/cypress/support/e2e.js
index 0f7ee48..5988293 100644
--- a/frontend/cypress/support/e2e.js
+++ b/frontend/cypress/support/e2e.js
@@ -1,5 +1,11 @@
-// Ignore uncaught exceptions from the app (API errors during loading, etc.)
-Cypress.on('uncaught:exception', () => false)
+// Log uncaught exceptions but don't swallow them blindly.
+// Only ignore known non-critical errors (e.g. ResizeObserver).
+Cypress.on('uncaught:exception', (err) => {
+  // ResizeObserver loop errors are harmless
+  if (err.message.includes('ResizeObserver')) return false
+  // Let all other errors fail the test
+  return true
+})
 
 // Custom commands for the oil calculator app
 
diff --git a/frontend/src/views/AuditLog.vue b/frontend/src/views/AuditLog.vue
index e4b7a6d..7ccc8d0 100644
--- a/frontend/src/views/AuditLog.vue
+++ b/frontend/src/views/AuditLog.vue
@@ -154,7 +154,7 @@ function formatDetail(log) {
 async function fetchLogs() {
   loading.value = true
   try {
-    const res = await api(`/api/audit-logs?offset=${page.value * pageSize}&limit=${pageSize}`)
+    const res = await api(`/api/audit-log?offset=${page.value * pageSize}&limit=${pageSize}`)
     if (res.ok) {
       const data = await res.json()
       const items = Array.isArray(data) ? data : data.logs || data.items || []
@@ -179,7 +179,7 @@ async function undoLog(log) {
   if (!ok) return
   try {
     const id = log._id || log.id
-    const res = await api(`/api/audit-logs/${id}/undo`, { method: 'POST' })
+    const res = await api(`/api/audit-log/${id}/undo`, { method: 'POST' })
     if (res.ok) {
       ui.showToast('已撤销')
       // Refresh
diff --git a/frontend/src/views/BugTracker.vue b/frontend/src/views/BugTracker.vue
index 74050f4..37050ff 100644
--- a/frontend/src/views/BugTracker.vue
+++ b/frontend/src/views/BugTracker.vue
@@ -188,7 +188,7 @@ function toggleComments(bug) {
 
 async function loadBugs() {
   try {
-    const res = await api('/api/bugs')
+    const res = await api('/api/bug-reports')
     if (res.ok) {
       bugs.value = await res.json()
     }
@@ -200,14 +200,11 @@ async function loadBugs() {
 async function createBug() {
   if (!bugForm.title.trim()) return
   try {
-    const res = await api('/api/bugs', {
+    const res = await api('/api/bug-report', {
       method: 'POST',
       body: JSON.stringify({
-        title: bugForm.title.trim(),
-        description: bugForm.description.trim(),
-        priority: bugForm.priority,
-        status: 'open',
-        reporter: auth.user.display_name || auth.user.username,
+        content: bugForm.title.trim() + (bugForm.description.trim() ? '\n' + bugForm.description.trim() : ''),
+        priority: bugForm.priority === 'urgent' ? 0 : bugForm.priority === 'high' ? 1 : 2,
       }),
     })
     if (res.ok) {
@@ -226,7 +223,7 @@ async function createBug() {
 async function updateStatus(bug, newStatus) {
   const id = bug._id || bug.id
   try {
-    const res = await api(`/api/bugs/${id}`, {
+    const res = await api(`/api/bug-reports/${id}`, {
       method: 'PUT',
       body: JSON.stringify({ status: newStatus }),
     })
@@ -244,7 +241,7 @@ async function removeBug(bug) {
   if (!ok) return
   const id = bug._id || bug.id
   try {
-    const res = await api(`/api/bugs/${id}`, { method: 'DELETE' })
+    const res = await api(`/api/bug-reports/${id}`, { method: 'DELETE' })
     if (res.ok) {
       bugs.value = bugs.value.filter(b => (b._id || b.id) !== id)
       ui.showToast('已删除')
@@ -258,7 +255,7 @@ async function addComment(bug) {
   if (!newComment.value.trim()) return
   const id = bug._id || bug.id
   try {
-    const res = await api(`/api/bugs/${id}/comments`, {
+    const res = await api(`/api/bug-reports/${id}/comments`, {
       method: 'POST',
       body: JSON.stringify({
         text: newComment.value.trim(),
diff --git a/frontend/src/views/MyDiary.vue b/frontend/src/views/MyDiary.vue
index f8ce034..e23291c 100644
--- a/frontend/src/views/MyDiary.vue
+++ b/frontend/src/views/MyDiary.vue
@@ -341,7 +341,7 @@ function formatDate(d) {
 // Brand settings
 async function loadBrandSettings() {
   try {
-    const res = await api('/api/brand-settings')
+    const res = await api('/api/brand')
     if (res.ok) {
       const data = await res.json()
       brandName.value = data.brand_name || ''
@@ -356,7 +356,7 @@ async function loadBrandSettings() {
 
 async function saveBrandSettings() {
   try {
-    await api('/api/brand-settings', {
+    await api('/api/brand', {
       method: 'PUT',
       body: JSON.stringify({
         brand_name: brandName.value,
@@ -400,7 +400,7 @@ async function handleUpload(type, event) {
 // Account
 async function updateDisplayName() {
   try {
-    await api('/api/me/display-name', {
+    await api('/api/me', {
       method: 'PUT',
       body: JSON.stringify({ display_name: displayName.value }),
     })
diff --git a/frontend/src/views/RecipeSearch.vue b/frontend/src/views/RecipeSearch.vue
index 8ab0976..0cfffa5 100644
--- a/frontend/src/views/RecipeSearch.vue
+++ b/frontend/src/views/RecipeSearch.vue
@@ -131,7 +131,7 @@ const catTrack = ref(null)
 
 onMounted(async () => {
   try {
-    const res = await api('/api/category-modules')
+    const res = await api('/api/categories')
     if (res.ok) {
       categories.value = await res.json()
     }