diff --git a/src/api/client.ts b/src/api/client.ts
index 97b745f..9c387cb 100644
--- a/src/api/client.ts
+++ b/src/api/client.ts
@@ -25,14 +25,24 @@ export function setAuthTokenProvider(provider: (() => string | null) | null) {
   authTokenProvider = provider
 }
 
+function isRefreshRequest(input: RequestInfo | URL): boolean {
+  try {
+    const url = typeof input === 'string' ? input : (input as URL).toString()
+    return url.includes('/api/v1/auth/refresh')
+  } catch {
+    return false
+  }
+}
+
 export const api = createClient<paths>({
   baseUrl,
   fetch: (input: RequestInfo | URL, init?: RequestInit) => {
     const headers = new Headers(init?.headers || {})
     const token = authTokenProvider ? authTokenProvider() : null
     if (token) headers.set('Authorization', `Bearer ${token}`)
+    const credentials = isRefreshRequest(input) ? 'include' : 'same-origin'
     return globalThis.fetch(input, {
-      credentials: 'include',
+      credentials,
       ...init,
       headers,
     })
@@ -45,9 +55,6 @@ export async function fetchApi(path: string, init?: RequestInit): Promise<Respon
   const token = authTokenProvider ? authTokenProvider() : null
   if (token) headers.set('Authorization', `Bearer ${token}`)
   const url = baseUrl ? new URL(path, baseUrl).toString() : path
-  return globalThis.fetch(url, {
-    credentials: 'include',
-    ...init,
-    headers,
-  })
+  const credentials = path.includes('/api/v1/auth/refresh') ? 'include' : 'same-origin'
+  return globalThis.fetch(url, { credentials, ...init, headers })
 }
diff --git a/src/api/invitations.ts b/src/api/invitations.ts
index 52bf0d1..119f28a 100644
--- a/src/api/invitations.ts
+++ b/src/api/invitations.ts
@@ -1,4 +1,4 @@
-import { api, fetchApi } from '@/api/client'
+import { api } from '@/api/client'
 
 export type Household = { id: number; name: string; slug: string }
 
@@ -21,19 +21,11 @@ async function safeJson<T>(resp: Response): Promise<T | null> {
 }
 
 export async function acceptInvitation(token: string): Promise<Household> {
-  const resp = await fetchApi('/api/v1/invitations/accept', {
-    method: 'POST',
-    headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify({ token }),
-  })
-  if (!resp.ok) throw new Error(`${resp.status} ${resp.statusText || 'HTTP error'}`)
-  const data = await safeJson<{ household?: unknown }>(resp)
-  let h: unknown
-  if (data && typeof data === 'object' && 'household' in data) {
-    h = (data as { household?: unknown }).household
-  } else {
-    h = undefined
-  }
+  const { data, error, response } = await api.POST('/api/v1/invitations/accept', { body: { token } as any })
+  if (!response.ok) throw new Error(`${response.status} ${response.statusText || 'HTTP error'}${error ? `: ${String(error)}` : ''}`)
+  const dataObj = data as any
+  const dataWrapped: { household?: unknown } | null = (dataObj && typeof dataObj === 'object') ? dataObj : null
+  let h: unknown = dataWrapped && 'household' in dataWrapped ? dataWrapped.household : undefined
   if (!isHousehold(h)) {
     throw new Error('Invalid invitation accept response')
   }
diff --git a/src/components/HouseholdSwitcher.vue b/src/components/HouseholdSwitcher.vue
index 62e7ee6..47f5f15 100644
--- a/src/components/HouseholdSwitcher.vue
+++ b/src/components/HouseholdSwitcher.vue
@@ -1,6 +1,6 @@
 <template>
   <div
-    v-if="enabled && households.length > 0"
+    v-if="households.length > 0"
     class="household-switcher"
   >
     <label>Household:</label>
@@ -31,20 +31,18 @@ import { computed } from 'vue'
 import { useRoute } from 'vue-router'
 import { useAuth } from '@/composables/useAuth'
 
-const enabled = (typeof process !== 'undefined' && (process.env?.VUE_APP_MULTITENANT_ENABLED === 'true'))
 const route = useRoute()
 const { households } = useAuth()
 
 const activeSlug = computed(() => (typeof route.params.householdSlug === 'string' ? route.params.householdSlug : null))
 
 function toHousehold(slug: string) {
-  if (enabled) return { name: 'mealplan', params: { householdSlug: slug } }
-  return { name: 'mealplan' }
+  return { name: 'mealplan', params: { householdSlug: slug } }
 }
 
 function toSettings() {
   const slug = activeSlug.value
-  if (enabled && typeof slug === 'string' && slug.length > 0) {
+  if (typeof slug === 'string' && slug.length > 0) {
     return { name: 'household-settings', params: { householdSlug: slug } }
   }
   return { name: 'household-settings' }
diff --git a/src/router/index.ts b/src/router/index.ts
index dfbd67e..5144d3e 100644
--- a/src/router/index.ts
+++ b/src/router/index.ts
@@ -16,7 +16,6 @@ const InvitationAccept = () => import('@/views/InvitationAccept.vue')
 const HouseholdSettings = () => import('@/views/HouseholdSettings.vue')
 
 export function createAppRouter(getCurrentUser: () => Promise<unknown> | unknown): Router {
-  const multitenantEnabled = typeof process !== 'undefined' && process.env?.VUE_APP_MULTITENANT_ENABLED === 'true'
   const publicRoutes: RouteRecordRaw[] = [
     { path: '/login', name: 'login', component: LoginPage },
     { path: '/create-account', name: 'create-account', component: CreateAccount },
@@ -38,28 +37,9 @@ export function createAppRouter(getCurrentUser: () => Promise<unknown> | unknown
   ]
 
   const routes: RouteRecordRaw[] = []
-
-  if (multitenantEnabled) {
-    routes.push({ path: '/', name: 'root', component: { template: '<div />' }, meta: { requiresAuth: true } })
-    routes.push(...publicRoutes)
-    routes.push({ path: '/:householdSlug', component: { template: '<router-view />' }, children: featureChildren })
-  } else {
-    routes.push({ path: '/', redirect: { name: 'mealplan' } })
-    routes.push(...publicRoutes)
-    // legacy flat routes
-    routes.push(
-      { path: '/recipes', name: 'recipes', component: RecipesPage, meta: { requiresAuth: true } },
-      { path: '/recipes/add', name: 'recipe-add', component: EditRecipePage, meta: { requiresAuth: true } },
-      { path: '/recipes/:id', name: 'recipe-edit', component: EditRecipePage, props: true, meta: { requiresAuth: true } },
-      { path: '/mealplan', name: 'mealplan', component: MealPlanPage, meta: { requiresAuth: true } },
-      { path: '/meals/add', name: 'meal-add', component: EditMealPage, meta: { requiresAuth: true } },
-      { path: '/meals/:id', name: 'meal-edit', component: EditMealPage, props: true, meta: { requiresAuth: true } },
-      { path: '/shopping', name: 'shopping', component: MyShoppingPage, meta: { requiresAuth: true } },
-      { path: '/shopping/current', name: 'shopping-current', component: CurrentShoppingListPage, meta: { requiresAuth: true } },
-      { path: '/shopping/:id', name: 'shopping-list', component: PurchasedShoppingListPage, props: true, meta: { requiresAuth: true } },
-      { path: '/settings/members', name: 'household-settings', component: HouseholdSettings, meta: { requiresAuth: true } },
-    )
-  }
+  routes.push({ path: '/', name: 'root', component: { template: '<div />' }, meta: { requiresAuth: true } })
+  routes.push(...publicRoutes)
+  routes.push({ path: '/:householdSlug', component: { template: '<router-view />' }, children: featureChildren })
 
   // Use hash history in real browsers; fallback to memory history in tests/SSR where `globalThis.location` may be unavailable
   // Some test runners may polyfill `window` but not the global `location`, and vue-router's hash history uses the global.
@@ -79,10 +59,9 @@ export function createAppRouter(getCurrentUser: () => Promise<unknown> | unknown
     if (!to.meta.requiresAuth) return true
     try {
       const user = await getCurrentUser()
-      if (!user) throw new Error('not-authenticated')
-      if (!multitenantEnabled) return true
+  if (!user) throw new Error('not-authenticated')
 
-      // Multitenant redirects
+  // Household-scoped redirects
       // Fetch households and redirect accordingly
       const { useAuth } = await import('@/composables/useAuth')
       const { fetchHouseholds, setActiveHousehold, households } = useAuth()
@@ -93,7 +72,7 @@ export function createAppRouter(getCurrentUser: () => Promise<unknown> | unknown
         return true
       }
 
-      // If no slug in route, redirect to first household's mealplan
+  // If no slug in route, redirect to first household's mealplan
       const slug = typeof to.params.householdSlug === 'string' ? to.params.householdSlug : null
       if (!slug) {
         if (hs.length > 0) {
diff --git a/tests/router.multitenant.test.ts b/tests/router.multitenant.test.ts
index 49b3e20..d355949 100644
--- a/tests/router.multitenant.test.ts
+++ b/tests/router.multitenant.test.ts
@@ -1,13 +1,7 @@
-import { describe, it, expect, vi, beforeEach } from 'vitest'
+import { describe, it, expect } from 'vitest'
 
-describe('router multitenant routing', () => {
-  beforeEach(() => {
-    vi.resetModules()
-    const env: Record<string, unknown> = process.env as unknown as Record<string, unknown>
-    delete env.VUE_APP_MULTITENANT_ENABLED
-  })
-
-  it('includes public routes and legacy flat routes when flag disabled', async () => {
+describe('router slugged routing', () => {
+  it('includes public routes and only slugged feature routes', async () => {
     const { createAppRouter } = await import('@/router/index')
     const router = createAppRouter(() => null)
     const paths = router.getRoutes().map((r) => r.path)
@@ -15,23 +9,14 @@ describe('router multitenant routing', () => {
     expect(paths).toContain('/create-account')
     expect(paths).toContain('/welcome')
     expect(paths).toContain('/invitations/accept')
-    // legacy flat routes
-    expect(paths).toContain('/recipes')
-    expect(paths).toContain('/shopping')
-  })
-
-  it('nests routes under /:householdSlug when flag enabled', async () => {
-  (process.env as unknown as Record<string, unknown>).VUE_APP_MULTITENANT_ENABLED = 'true'
-    const { createAppRouter } = await import('@/router/index')
-    const router = createAppRouter(() => null)
-    const paths = router.getRoutes().map((r) => r.path)
-    // Public routes still exist
-    expect(paths).toContain('/login')
-    expect(paths).toContain('/create-account')
-    // Nested route example
-    const hasNestedRecipes = paths.some((p) => p === '/:householdSlug/recipes')
-    expect(hasNestedRecipes).toBe(true)
-    // Legacy route should not be present when nested is enabled
+    // Only slugged feature routes
+    expect(paths).toContain('/:householdSlug/recipes')
+    expect(paths).toContain('/:householdSlug/mealplan')
+    expect(paths).toContain('/:householdSlug/shopping')
+    expect(paths).toContain('/:householdSlug/shopping/current')
+    expect(paths).toContain('/:householdSlug/settings/members')
+    // No legacy flat routes
     expect(paths).not.toContain('/recipes')
+    expect(paths).not.toContain('/shopping')
   })
 })