feat(orders-list): live status badge + fiat amount + manual refresh

Three follow-ups to the v1 orders-list page that emerged once the
extension started transitioning orders through 'paid → accepted →
ready' from the KDS:

views/OrdersListPage.vue:
  - hydrate each entry from api.getOrder(id) on mount so the row
    reflects the live status (via friendlyOrderStatus) rather than
    the snapshot at place-time
  - surface the order's original fiat_amount + currency_display
    alongside the sat total
  - floating bottom-right FAB refresh button — the extension has no
    push channel for order status today (aiolabs/restaurant#9 will
    replace this with NIP-17 status DMs), so customers need an
    explicit way to pick up kitchen-side transitions without a
    full page reload. Bottom-right positioning avoids the global
    hub nav button at top-right.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/modules/restaurant/components/CartLineItem.vue

@@ -10,7 +10,6 @@ import type { CartLine } from '../stores/cart'
 
 const props = defineProps<{
   line: CartLine
-  currencyHint?: string
 }>()
 
 const emit = defineEmits<{
@@ -24,14 +23,12 @@ const modifierSummary = computed(() =>
 )
 
 const lineTotal = computed(() => {
-  // unit_msat is base + modifier delta snapshot; the cart store
-  // currently stores it as a sat-major number (price * 1000-less
-  // because the extension's `price` is already in the declared
-  // currency, not msat — see useCheckout's buildCreateOrder for the
-  // canonical conversion at order-place time).
+  // Displayed in the menu item's currency (e.g. GTQ). Authoritative
+  // sat conversion happens server-side at /orders/quote — the
+  // checkout page surfaces that as a "≈ X sat" badge.
   const fmt = new Intl.NumberFormat(undefined, { maximumFractionDigits: 2 })
-  const total = props.line.unit_msat * props.line.quantity
-  return `${fmt.format(total)} ${props.currencyHint || 'sat'}`
+  const total = props.line.unit_price * props.line.quantity
+  return `${fmt.format(total)} ${props.line.currency}`
 })
 </script>
 

src/modules/restaurant/components/OrderInvoiceCard.vue

@@ -0,0 +1,104 @@
+<script setup lang="ts">
+/**
+ * Renders a bolt11 invoice as a copyable QR + amount + expiry.
+ * Used on OrderStatusPage when the order is still pending.
+ */
+import { onMounted, onUnmounted, ref, watch } from 'vue'
+import QRCode from 'qrcode'
+import { Copy, Check } from 'lucide-vue-next'
+import { Button } from '@/components/ui/button'
+import { Card, CardContent } from '@/components/ui/card'
+import type { OrderInvoice } from '../types/restaurant'
+
+const props = defineProps<{
+  invoice: OrderInvoice
+}>()
+
+const qrDataUrl = ref<string>('')
+const copied = ref(false)
+const expiresInSec = ref<number>(0)
+
+let countdownTimer: ReturnType<typeof setInterval> | null = null
+
+async function render() {
+  try {
+    qrDataUrl.value = await QRCode.toDataURL(props.invoice.bolt11, {
+      errorCorrectionLevel: 'M',
+      margin: 1,
+      scale: 6,
+      // Theme-aware colors are tricky for QR (must stay
+      // high-contrast for scanners). Stick with pure white bg /
+      // black fg regardless of theme — QRs are read by camera not
+      // by humans.
+    })
+  } catch (err) {
+    console.error('Failed to render bolt11 QR:', err)
+  }
+}
+
+watch(() => props.invoice.bolt11, render, { immediate: true })
+
+function updateCountdown() {
+  const now = Math.floor(Date.now() / 1000)
+  expiresInSec.value = Math.max(0, props.invoice.expires_at - now)
+}
+
+onMounted(() => {
+  updateCountdown()
+  countdownTimer = setInterval(updateCountdown, 1000)
+})
+
+onUnmounted(() => {
+  if (countdownTimer) clearInterval(countdownTimer)
+})
+
+function copy() {
+  void navigator.clipboard.writeText(props.invoice.bolt11)
+  copied.value = true
+  setTimeout(() => (copied.value = false), 1500)
+}
+
+function fmtCountdown(seconds: number) {
+  const m = Math.floor(seconds / 60)
+  const s = seconds % 60
+  return `${m}:${String(s).padStart(2, '0')}`
+}
+</script>
+
+<template>
+  <Card>
+    <CardContent class="space-y-3 p-4 sm:p-5">
+      <div class="flex items-center justify-between">
+        <p class="text-sm font-semibold text-foreground">Lightning invoice</p>
+        <p class="font-mono text-xs text-muted-foreground">
+          <span v-if="expiresInSec > 0">expires in {{ fmtCountdown(expiresInSec) }}</span>
+          <span v-else class="text-destructive">expired</span>
+        </p>
+      </div>
+      <div class="mx-auto w-fit overflow-hidden rounded-lg border border-border bg-white p-2">
+        <img
+          v-if="qrDataUrl"
+          :src="qrDataUrl"
+          alt="bolt11 invoice QR code"
+          class="block h-56 w-56 sm:h-64 sm:w-64"
+        />
+      </div>
+      <div class="flex items-baseline justify-between">
+        <span class="text-xs text-muted-foreground">Amount</span>
+        <span class="font-mono text-sm font-semibold text-primary">
+          {{ Math.ceil(invoice.amount_msat / 1000) }} sat
+        </span>
+      </div>
+      <Button
+        variant="outline"
+        size="sm"
+        class="w-full font-mono text-xs"
+        @click="copy"
+      >
+        <Check v-if="copied" class="mr-2 h-3.5 w-3.5" />
+        <Copy v-else class="mr-2 h-3.5 w-3.5" />
+        {{ copied ? 'Copied' : 'Copy invoice' }}
+      </Button>
+    </CardContent>
+  </Card>
+</template>

src/modules/restaurant/composables/useCheckout.ts

@@ -0,0 +1,309 @@
+/**
+ * useCheckout — drives the customer's place-and-pay flow against
+ * the restaurant extension.
+ *
+ * v1 ships REST-only:
+ *   1. quote (msat required)
+ *   2. balance pre-check (sum across all restaurants in the cart)
+ *   3. POST /orders → { order, invoice }
+ *   4. (optional, customer choice) POST /api/v1/payments to settle
+ *      the bolt11 from the customer's LNbits wallet. They can also
+ *      skip this step and scan the QR with any other wallet — the
+ *      extension's invoice listener marks the order paid either way.
+ *
+ * Split into two distinct actions so the UI can render the QR codes
+ * between place and pay, giving the customer the option to scan
+ * with an external wallet rather than auto-paying from LNbits:
+ *
+ *   placeOrders()    — runs steps 1-3, populates `state.value.placedOrders`
+ *   payOrder(idx)    — runs step 4 for one placed-order index
+ *
+ * The festival aggregator (aiolabs/restaurant#8) exercises this same
+ * path with N > 1 restaurants in the cart. v1 happens to ship a UI
+ * where N == 1, but the orchestration is multi-restaurant ready.
+ *
+ * NIP-17 transport (aiolabs/restaurant#9) plugs in via the
+ * `buildCreateOrder` helper — single point both REST and Nostr
+ * transports construct CreateOrder. Loyalty (#5) injects its
+ * pass-through fields the same way.
+ */
+import { ref, type Ref } from 'vue'
+import { injectService, SERVICE_TOKENS } from '@/core/di-container'
+import { useAuth } from '@/composables/useAuthService'
+import appConfig from '@/app.config'
+import type { RestaurantAPI } from '../services/RestaurantAPI'
+import { useCartStore, type CartLine } from '../stores/cart'
+import type {
+  CreateOrder,
+  CreateOrderItem,
+  Order,
+  OrderInvoice,
+  PlaceOrderResponse,
+} from '../types/restaurant'
+
+export interface PlacedOrder {
+  restaurantId: string
+  restaurantSlug: string
+  order: Order
+  invoice: OrderInvoice | null
+}
+
+export interface CheckoutState {
+  step:
+    | 'idle'
+    | 'quoting'
+    | 'placing'
+    | 'placed'
+    | 'paying'
+    | 'paid'
+    | 'error'
+  progress: { current: number; total: number }
+  currentRestaurantSlug: string | null
+  placedOrders: PlacedOrder[]
+  /** Set of `placedOrders[i].order.id` that have been auto-paid
+   *  via LNbits in this session. External-wallet payments don't
+   *  populate this — they're detected via the per-order poller in
+   *  CheckoutPage. */
+  paidOrderIds: Set<string>
+  error: string | null
+}
+
+export interface UseCheckoutReturn {
+  state: Ref<CheckoutState>
+  /** Run quote → balance precheck → POST /orders for every cart
+   *  bucket. Returns the placed orders (also persisted in state). */
+  placeOrders: () => Promise<PlacedOrder[]>
+  /** Pay one already-placed order's bolt11 from the customer's
+   *  LNbits wallet. Idempotent — calling twice on the same order
+   *  is a no-op after the first success. */
+  payOrder: (placedIndex: number) => Promise<void>
+  /** Pay every unpaid placed-order in sequence. Best-effort: if
+   *  one fails, earlier successes stay paid. */
+  payAll: () => Promise<void>
+  /** Reset to idle and drop placed/paid state. */
+  reset: () => void
+}
+
+/**
+ * The single point CreateOrder is built — keeps loyalty (#5), NIP-17
+ * transport (#9), and tip overrides one-place changes rather than
+ * touching the whole flow.
+ */
+function buildCreateOrder(
+  restaurantId: string,
+  customerPubkey: string | undefined,
+  lines: CartLine[]
+): CreateOrder {
+  const items: CreateOrderItem[] = lines.map((l) => ({
+    menu_item_id: l.menu_item_id,
+    quantity: l.quantity,
+    selected_modifiers: l.selected_modifiers,
+    note: l.note ?? undefined,
+  }))
+  // Loyalty (#5) future-extension point: when implemented, inject
+  // { loyalty_credits_msat, loyalty_pubkey } into extra.fields here.
+  return {
+    restaurant_id: restaurantId,
+    customer_pubkey: customerPubkey || null,
+    items,
+    channel: 'rest',
+    payment_method: 'lightning',
+  }
+}
+
+function blankState(): CheckoutState {
+  return {
+    step: 'idle',
+    progress: { current: 0, total: 0 },
+    currentRestaurantSlug: null,
+    placedOrders: [],
+    paidOrderIds: new Set(),
+    error: null,
+  }
+}
+
+export function useCheckout(): UseCheckoutReturn {
+  const api = injectService<RestaurantAPI>(SERVICE_TOKENS.RESTAURANT_API)
+  const cart = useCartStore()
+  const { user } = useAuth()
+
+  // We talk to LNbits's payments endpoint directly rather than
+  // pulling in the whole `wallet` module — the restaurant-app
+  // bundle is a customer surface, not a wallet UI.
+  const apiBaseUrl =
+    (
+      appConfig.modules.restaurant as
+        | { config?: { apiBaseUrl?: string } }
+        | undefined
+    )?.config?.apiBaseUrl || ''
+
+  const state = ref<CheckoutState>(blankState())
+
+  function reset(): void {
+    state.value = blankState()
+  }
+
+  // ----------------------------------------------------------------- //
+  // place                                                              //
+  // ----------------------------------------------------------------- //
+
+  async function placeOrders(): Promise<PlacedOrder[]> {
+    const buckets = cart.restaurantsInCart.map((rid) => ({
+      restaurantId: rid,
+      restaurantSlug: cart.linesFor(rid)[0]?.restaurant_slug ?? '',
+      lines: cart.linesFor(rid),
+    }))
+    if (!buckets.length) {
+      throw new Error('Cart is empty')
+    }
+
+    state.value = {
+      ...blankState(),
+      step: 'quoting',
+      progress: { current: 0, total: buckets.length },
+    }
+
+    // 1. Quote per restaurant.
+    const quotes: Array<{
+      restaurantId: string
+      restaurantSlug: string
+      lines: CartLine[]
+      msat: number
+    }> = []
+    for (let i = 0; i < buckets.length; i++) {
+      const b = buckets[i]
+      state.value.currentRestaurantSlug = b.restaurantSlug
+      state.value.progress = { current: i, total: buckets.length }
+      const quote = await api.quoteOrder(
+        b.lines.map((l) => ({
+          menu_item_id: l.menu_item_id,
+          quantity: l.quantity,
+          selected_modifiers: l.selected_modifiers,
+          note: l.note ?? undefined,
+        }))
+      )
+      quotes.push({ ...b, msat: quote.required_msat })
+    }
+
+    // 2. Balance pre-check.
+    const totalMsatRequired = quotes.reduce((s, q) => s + q.msat, 0)
+    const wallet0 = user.value?.wallets?.[0]
+    if (wallet0 && typeof wallet0.balance_msat === 'number') {
+      if (wallet0.balance_msat < totalMsatRequired) {
+        const needSat = Math.ceil(totalMsatRequired / 1000)
+        const haveSat = Math.floor(wallet0.balance_msat / 1000)
+        // Not fatal — the customer may still want to scan the QR
+        // and pay from an external wallet. Surface a warning but
+        // continue.
+        console.warn(
+          `[restaurant] LNbits wallet balance is below the cart total ` +
+            `(have ${haveSat} sat, need ${needSat} sat). Auto-pay will ` +
+            `fail; scan the QR with an external wallet to settle.`
+        )
+      }
+    }
+
+    // 3. Place orders.
+    state.value.step = 'placing'
+    const placed: PlacedOrder[] = []
+    for (let i = 0; i < quotes.length; i++) {
+      const q = quotes[i]
+      state.value.currentRestaurantSlug = q.restaurantSlug
+      state.value.progress = { current: i, total: quotes.length }
+      const payload = buildCreateOrder(
+        q.restaurantId,
+        user.value?.pubkey,
+        q.lines
+      )
+      const result: PlaceOrderResponse = await api.placeOrder(payload)
+      placed.push({
+        restaurantId: q.restaurantId,
+        restaurantSlug: q.restaurantSlug,
+        order: result.order,
+        invoice: result.invoice,
+      })
+    }
+
+    state.value.step = 'placed'
+    state.value.placedOrders = placed
+    state.value.currentRestaurantSlug = null
+    return placed
+  }
+
+  // ----------------------------------------------------------------- //
+  // pay                                                                //
+  // ----------------------------------------------------------------- //
+
+  async function payBolt11Raw(
+    bolt11: string,
+    adminkey: string
+  ): Promise<void> {
+    const response = await fetch(`${apiBaseUrl}/api/v1/payments`, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+        'X-Api-Key': adminkey,
+      },
+      body: JSON.stringify({ out: true, bolt11 }),
+    })
+    if (!response.ok) {
+      let detail = response.statusText
+      try {
+        const body = await response.json()
+        if (body?.detail) detail = body.detail
+      } catch {
+        /* body wasn't JSON */
+      }
+      throw new Error(`Payment failed: ${response.status} ${detail}`)
+    }
+  }
+
+  async function payOrder(placedIndex: number): Promise<void> {
+    const placed = state.value.placedOrders[placedIndex]
+    if (!placed) throw new Error(`No placed order at index ${placedIndex}`)
+    if (!placed.invoice) return // cash orders skip payment
+    if (state.value.paidOrderIds.has(placed.order.id)) return // already paid
+
+    const adminkey = user.value?.wallets?.[0]?.adminkey
+    if (!adminkey) {
+      throw new Error('No wallet available — please log in first.')
+    }
+
+    state.value.step = 'paying'
+    state.value.currentRestaurantSlug = placed.restaurantSlug
+    try {
+      await payBolt11Raw(placed.invoice.bolt11, adminkey)
+      // Set semantics keeps `paidOrderIds` from re-renders; rebuild
+      // it on update so Vue picks up the change.
+      state.value.paidOrderIds = new Set([
+        ...state.value.paidOrderIds,
+        placed.order.id,
+      ])
+      // Bump to 'paid' only when every placed order is paid.
+      if (
+        state.value.placedOrders.every((p) =>
+          state.value.paidOrderIds.has(p.order.id)
+        )
+      ) {
+        state.value.step = 'paid'
+      } else {
+        state.value.step = 'placed'
+      }
+    } catch (err) {
+      state.value.step = 'error'
+      state.value.error = err instanceof Error ? err.message : String(err)
+      throw err
+    }
+  }
+
+  async function payAll(): Promise<void> {
+    for (let i = 0; i < state.value.placedOrders.length; i++) {
+      const p = state.value.placedOrders[i]
+      if (!p.invoice) continue
+      if (state.value.paidOrderIds.has(p.order.id)) continue
+      await payOrder(i)
+    }
+  }
+
+  return { state, placeOrders, payOrder, payAll, reset }
+}

src/modules/restaurant/composables/useMenu.ts

@@ -15,8 +15,13 @@
  */
 
 import { ref, computed, onScopeDispose, watch, type Ref } from 'vue'
-import { injectService, SERVICE_TOKENS } from '@/core/di-container'
+import {
+  injectService,
+  tryInjectService,
+  SERVICE_TOKENS,
+} from '@/core/di-container'
 import type { RestaurantAPI } from '../services/RestaurantAPI'
+import type { RestaurantNostrSync } from '../services/RestaurantNostrSync'
 import type {
   EnrichedMenuItem,
   MenuNode,
@@ -33,6 +38,7 @@ function looksLikeId(value: string): boolean {
 export interface UseMenuReturn {
   restaurant: Ref<Restaurant | null>
   tree: Ref<MenuNode[]>
+  /** Items with the Nostr live overlay merged in. */
   items: Ref<EnrichedMenuItem[]>
   isLoading: Ref<boolean>
   error: Ref<Error | null>
@@ -41,10 +47,13 @@ export interface UseMenuReturn {
 
 export function useMenu(slugOrId: Ref<string> | string): UseMenuReturn {
   const api = injectService<RestaurantAPI>(SERVICE_TOKENS.RESTAURANT_API)
+  const sync = tryInjectService<RestaurantNostrSync>(
+    SERVICE_TOKENS.RESTAURANT_NOSTR_SYNC
+  )
 
   const restaurant = ref<Restaurant | null>(null)
   const tree = ref<MenuNode[]>([])
-  const items = ref<EnrichedMenuItem[]>([])
+  const baseItems = ref<EnrichedMenuItem[]>([])
   const isLoading = ref(false)
   const error = ref<Error | null>(null)
 
@@ -54,6 +63,24 @@ export function useMenu(slugOrId: Ref<string> | string): UseMenuReturn {
     typeof slugOrId === 'string' ? slugOrId : slugOrId.value
   )
 
+  /**
+   * `items` exposes the base REST snapshot patched with the live
+   * overlay from RestaurantNostrSync. Operator edits on the
+   * extension side surface here within ~1s of arriving at the
+   * relay, without a refetch.
+   */
+  const items = computed<EnrichedMenuItem[]>(() => {
+    const overlay = sync?.overlay
+    const deleted = sync?.deleted
+    if (!overlay && !deleted) return baseItems.value
+    return baseItems.value
+      .filter((it) => !(deleted && deleted.has(it.id)))
+      .map((it) => {
+        const patch = overlay?.get(it.id)
+        return patch ? ({ ...it, ...patch } as EnrichedMenuItem) : it
+      })
+  })
+
   async function load(value: string): Promise<void> {
     if (!value) return
     abortController?.abort()
@@ -73,7 +100,7 @@ export function useMenu(slugOrId: Ref<string> | string): UseMenuReturn {
 
       restaurant.value = menu.restaurant
       tree.value = menu.tree
-      items.value = menu.items
+      baseItems.value = menu.items
     } catch (err) {
       if (my.signal.aborted) return
       error.value = err instanceof Error ? err : new Error(String(err))

src/modules/restaurant/composables/useOrder.ts

@@ -0,0 +1,154 @@
+/**
+ * useOrder(orderId) — polls the restaurant extension for status
+ * updates on a single order.
+ *
+ * Polls every `orderPollMs` (from app.config.modules.restaurant)
+ * while status is in a non-terminal state. Resets to an immediate
+ * fetch on `VisibilityService.onVisible` so a backgrounded tab
+ * catches up the moment it comes back. Cleans the interval on
+ * scope dispose.
+ *
+ * Status is treated as an open string (see KNOWN_ORDER_STATUSES)
+ * — production / kitchen workflow (aiolabs/restaurant#4) may
+ * introduce new states.
+ */
+import { onScopeDispose, ref, watch, type Ref } from 'vue'
+import {
+  injectService,
+  tryInjectService,
+  SERVICE_TOKENS,
+} from '@/core/di-container'
+import appConfig from '@/app.config'
+import type { VisibilityService } from '@/core/services/VisibilityService'
+import type { RestaurantAPI } from '../services/RestaurantAPI'
+import type {
+  Order,
+  OrderItemRow,
+  OrderStatus,
+} from '../types/restaurant'
+
+const TERMINAL_STATUSES: OrderStatus[] = [
+  'completed',
+  'canceled',
+  'refunded',
+]
+
+export interface UseOrderReturn {
+  order: Ref<Order | null>
+  items: Ref<OrderItemRow[]>
+  isLoading: Ref<boolean>
+  error: Ref<Error | null>
+  refresh: () => Promise<void>
+}
+
+export function useOrder(orderId: Ref<string> | string): UseOrderReturn {
+  const api = injectService<RestaurantAPI>(SERVICE_TOKENS.RESTAURANT_API)
+  const visibility = tryInjectService<VisibilityService>(
+    SERVICE_TOKENS.VISIBILITY_SERVICE
+  )
+
+  const pollMs =
+    (
+      appConfig.modules.restaurant as
+        | { config?: { orderPollMs?: number } }
+        | undefined
+    )?.config?.orderPollMs ?? 5000
+
+  const order = ref<Order | null>(null)
+  const items = ref<OrderItemRow[]>([])
+  const isLoading = ref(false)
+  const error = ref<Error | null>(null)
+
+  let timer: ReturnType<typeof setInterval> | null = null
+  let unregisterVisibility: (() => void) | null = null
+
+  function targetId(): string {
+    return typeof orderId === 'string' ? orderId : orderId.value
+  }
+
+  async function fetchOnce(): Promise<void> {
+    const id = targetId()
+    if (!id) return
+    isLoading.value = true
+    try {
+      const data = await api.getOrder(id)
+      order.value = data.order
+      items.value = data.items
+      error.value = null
+    } catch (err) {
+      error.value = err instanceof Error ? err : new Error(String(err))
+    } finally {
+      isLoading.value = false
+    }
+  }
+
+  function isTerminal(status: OrderStatus | undefined): boolean {
+    return !!status && TERMINAL_STATUSES.includes(status)
+  }
+
+  function startPolling(): void {
+    if (timer) return
+    timer = setInterval(async () => {
+      if (isTerminal(order.value?.status)) {
+        stopPolling()
+        return
+      }
+      await fetchOnce()
+    }, pollMs)
+  }
+
+  function stopPolling(): void {
+    if (timer) {
+      clearInterval(timer)
+      timer = null
+    }
+  }
+
+  // Refetch immediately when the tab becomes visible again — useful
+  // for mobile where polling pauses during background. The
+  // VisibilityService takes (name, onResume, onPause) and returns
+  // an unregister fn.
+  if (visibility) {
+    unregisterVisibility = visibility.registerService(
+      `useOrder-${typeof orderId === 'string' ? orderId : 'ref'}`,
+      async () => {
+        await fetchOnce()
+        if (
+          !isTerminal((order.value as Order | null)?.status)
+        ) {
+          startPolling()
+        }
+      },
+      async () => {
+        // pause polling while hidden — saves battery on mobile
+        stopPolling()
+      }
+    )
+  }
+
+  watch(
+    () => targetId(),
+    async (id) => {
+      stopPolling()
+      order.value = null
+      items.value = []
+      if (!id) return
+      await fetchOnce()
+      if (!isTerminal((order.value as Order | null)?.status)) startPolling()
+    },
+    { immediate: true }
+  )
+
+  onScopeDispose(() => {
+    stopPolling()
+    unregisterVisibility?.()
+  })
+
+  return {
+    order,
+    items,
+    isLoading,
+    error,
+    refresh: fetchOnce,
+  }
+}

src/modules/restaurant/index.ts

@@ -4,6 +4,7 @@ import type { ModulePlugin } from '@/core/types'
 import { container, SERVICE_TOKENS } from '@/core/di-container'
 
 import { RestaurantAPI } from './services/RestaurantAPI'
+import { RestaurantNostrSync } from './services/RestaurantNostrSync'
 
 // v1 skeleton — REST-only, single-venue, URL-driven (/r/:slug).
 //
@@ -64,7 +65,21 @@ export const restaurantModule: ModulePlugin = {
         console.warn('🍴 RestaurantAPI init deferred:', error)
       })
 
-    // RestaurantNostrSync lands in commit 8.
+    // Nostr live-overlay sync. Requires RelayHub from baseModule;
+    // BaseService.waitForDependencies handles the timing if base
+    // initialization hasn't quite landed by the time we get here.
+    const restaurantNostrSync = new RestaurantNostrSync()
+    container.provide(
+      SERVICE_TOKENS.RESTAURANT_NOSTR_SYNC,
+      restaurantNostrSync
+    )
+    await restaurantNostrSync
+      .initialize({ waitForDependencies: true, maxRetries: 3 })
+      .catch((error) => {
+        // No-overlay mode is fine: REST still works, the menu just
+        // doesn't reflect operator edits without a page refresh.
+        console.warn('🍴 RestaurantNostrSync init deferred:', error)
+      })
 
     console.log('✅ Restaurant module installed')
   },
@@ -94,6 +109,30 @@ export const restaurantModule: ModulePlugin = {
       component: () => import('./views/CartPage.vue'),
       meta: { requiresAuth: false, title: 'Cart' },
     },
+    {
+      path: '/checkout',
+      name: 'restaurant-checkout',
+      component: () => import('./views/CheckoutPage.vue'),
+      meta: { requiresAuth: false, title: 'Checkout' },
+    },
+    {
+      path: '/orders/:id',
+      name: 'restaurant-order',
+      component: () => import('./views/OrderStatusPage.vue'),
+      meta: { requiresAuth: false, title: 'Order' },
+    },
+    {
+      path: '/orders',
+      name: 'restaurant-orders',
+      component: () => import('./views/OrdersListPage.vue'),
+      meta: { requiresAuth: false, title: 'Orders' },
+    },
+    {
+      path: '/settings',
+      name: 'restaurant-settings',
+      component: () => import('./views/SettingsPage.vue'),
+      meta: { requiresAuth: false, title: 'Settings' },
+    },
   ] as RouteRecordRaw[],
 }
 

src/modules/restaurant/services/RestaurantNostrSync.ts

@@ -0,0 +1,211 @@
+/**
+ * RestaurantNostrSync — live overlay for menu item state via NIP-99.
+ *
+ * Subscribes to the restaurant's `nostr_pubkey` for:
+ *   - kind 30402 (NIP-99 classified listings) tagged
+ *     `["l", "restaurant:<restaurant.id>"]`
+ *   - kind 5    (NIP-09 deletion requests)
+ *
+ * Each incoming 30402 is parsed into a partial MenuItem patch keyed
+ * by the `d` tag (= menu item id) and pushed to a reactive overlay
+ * map. `useMenu` merges this overlay into its `items` computed so
+ * price changes, sold-out flips, and availability updates render
+ * within ~1s of the operator's edit on the extension side.
+ *
+ * Subscription lifecycle is owned by the *consumer* (RestaurantPage
+ * opens on mount, closes on route leave). Visibility integration is
+ * handled implicitly by the RelayHub — backgrounded tabs lose the
+ * underlying WebSocket; we re-subscribe on the next mount.
+ *
+ * This service holds NO state about which restaurants are subscribed
+ * — it expects callers to track their own sub ids if they need to
+ * tear them down individually.
+ */
+import { reactive } from 'vue'
+import type { Filter } from 'nostr-tools'
+import { BaseService } from '@/core/base/BaseService'
+import type { RelayHub } from '@/modules/base/nostr/relay-hub'
+import type { MenuItem } from '../types/restaurant'
+
+interface NostrEvent {
+  id: string
+  pubkey: string
+  created_at: number
+  kind: number
+  tags: string[][]
+  content: string
+  sig?: string
+}
+
+const SUB_KIND_LISTING = 30402
+const SUB_KIND_DELETION = 5
+
+export type MenuItemPatch = Partial<
+  Pick<
+    MenuItem,
+    'name' | 'description' | 'price' | 'is_available' | 'stock' | 'nostr_event_id' | 'nostr_event_created_at'
+  >
+>
+
+export class RestaurantNostrSync extends BaseService {
+  protected readonly metadata = {
+    name: 'RestaurantNostrSync',
+    version: '1.0.0',
+    dependencies: ['RelayHub'] as string[],
+  }
+
+  /**
+   * Reactive overlay: itemId → partial patch. `useMenu` watches
+   * this and merges into its `items` array.
+   */
+  readonly overlay = reactive(new Map<string, MenuItemPatch>())
+
+  /** Deleted item ids — useMenu filters these out. */
+  readonly deleted = reactive(new Set<string>())
+
+  // BaseService auto-populates `this.relayHub` from
+  // SERVICE_TOKENS.RELAY_HUB because our `metadata.dependencies`
+  // includes 'RelayHub' — no manual inject needed in onInitialize.
+
+  private unsubscribers = new Map<string, () => void>()
+
+  protected async onInitialize(): Promise<void> {
+    this.debug('RestaurantNostrSync ready')
+  }
+
+  /** Typed accessor for the BaseService-injected relay hub. */
+  private get hub(): RelayHub | null {
+    return (this.relayHub as RelayHub | null) ?? null
+  }
+
+  /**
+   * Open the per-restaurant subscription. Returns an unsubscribe
+   * fn for convenience; calling subscribe() again with the same
+   * restaurantId is a no-op (idempotent).
+   */
+  subscribe(restaurantPubkey: string, restaurantId: string): () => void {
+    const hub = this.hub
+    if (!hub) {
+      this.debug('subscribe: relay hub not ready')
+      return () => {}
+    }
+    if (this.unsubscribers.has(restaurantId)) {
+      return () => this.unsubscribe(restaurantId)
+    }
+    const filter: Filter = {
+      kinds: [SUB_KIND_LISTING, SUB_KIND_DELETION],
+      authors: [restaurantPubkey],
+      '#l': [`restaurant:${restaurantId}`],
+    }
+    try {
+      const offEvent = hub.subscribe({
+        id: `restaurant-${restaurantId}`,
+        filters: [filter],
+        onEvent: (event) => this.handleEvent(event as NostrEvent),
+      })
+      this.unsubscribers.set(restaurantId, offEvent)
+      this.debug(`subscribed authors=${restaurantPubkey.slice(0, 8)}…`)
+    } catch (err) {
+      // RelayHub throws if not connected. The user can still browse
+      // via REST — this just means no live updates this session.
+      this.debug(`subscribe failed (live overlay disabled): ${String(err)}`)
+    }
+    return () => this.unsubscribe(restaurantId)
+  }
+
+  unsubscribe(restaurantId: string): void {
+    const off = this.unsubscribers.get(restaurantId)
+    if (off) {
+      off()
+      this.unsubscribers.delete(restaurantId)
+      this.debug(`unsubscribed ${restaurantId}`)
+    }
+  }
+
+  /**
+   * Drop all subscriptions and clear the overlay. BaseService
+   * defines this as async; we honor the signature even though our
+   * cleanup is synchronous.
+   */
+  async dispose(): Promise<void> {
+    for (const off of this.unsubscribers.values()) off()
+    this.unsubscribers.clear()
+    this.overlay.clear()
+    this.deleted.clear()
+  }
+
+  // ----------------------------------------------------------------- //
+  // event handlers                                                    //
+  // ----------------------------------------------------------------- //
+
+  private handleEvent(event: NostrEvent): void {
+    if (event.kind === SUB_KIND_LISTING) {
+      this.handleListing(event)
+    } else if (event.kind === SUB_KIND_DELETION) {
+      this.handleDeletion(event)
+    }
+  }
+
+  private handleListing(event: NostrEvent): void {
+    const dTag = event.tags.find((t) => t[0] === 'd')?.[1]
+    if (!dTag) return
+
+    // Skip if we've already seen a newer version of this addressable
+    // event (NIP-33 replaceable semantics — operator-side bug
+    // protection).
+    const existing = this.overlay.get(dTag)
+    if (
+      existing?.nostr_event_created_at &&
+      existing.nostr_event_created_at >= event.created_at
+    ) {
+      return
+    }
+
+    const patch: MenuItemPatch = {
+      nostr_event_id: event.id,
+      nostr_event_created_at: event.created_at,
+    }
+
+    const title = event.tags.find((t) => t[0] === 'title')?.[1]
+    if (title) patch.name = title
+
+    const summary = event.tags.find((t) => t[0] === 'summary')?.[1]
+    if (summary) patch.description = summary
+
+    const priceTag = event.tags.find((t) => t[0] === 'price')
+    if (priceTag && priceTag[1]) {
+      const parsed = parseFloat(priceTag[1])
+      if (!Number.isNaN(parsed)) patch.price = parsed
+    }
+
+    // NIP-99 status: 'active' | 'sold'. We map to is_available +
+    // stock=0 so the existing UI badges (sold out / low stock)
+    // render consistently.
+    const statusTag = event.tags.find((t) => t[0] === 'status')?.[1]
+    if (statusTag === 'sold') {
+      patch.is_available = false
+      patch.stock = 0
+    } else if (statusTag === 'active') {
+      patch.is_available = true
+    }
+
+    this.overlay.set(dTag, patch)
+    this.debug(`overlay merge id=${dTag.slice(0, 8)}…`)
+  }
+
+  private handleDeletion(event: NostrEvent): void {
+    // NIP-09: an `a` tag references the addressable event the author
+    // is deleting. Format: 'kind:pubkey:dTag'.
+    for (const tag of event.tags) {
+      if (tag[0] !== 'a' || !tag[1]) continue
+      const parts = tag[1].split(':')
+      if (parts[0] !== String(SUB_KIND_LISTING)) continue
+      const dTag = parts[2]
+      if (dTag) {
+        this.deleted.add(dTag)
+        this.overlay.delete(dTag)
+        this.debug(`deletion id=${dTag.slice(0, 8)}…`)
+      }
+    }
+  }
+}

src/modules/restaurant/stores/cart.ts

@@ -30,8 +30,16 @@ export interface CartLine {
   /** Snapshot at add-time so the cart still renders if the menu
    *  item is later edited / deleted. */
   name: string
-  /** Base price + selected modifier deltas, in msat. */
-  unit_msat: number
+  /**
+   * Base price + selected modifier deltas, **in the menu item's
+   * declared currency** (e.g. 25 for "25 GTQ" or 100 for "100 sat").
+   * Authoritative sat conversion happens server-side via
+   * `POST /orders/quote`; the cart's value is for display only.
+   */
+  unit_price: number
+  /** ISO-ish currency code from the menu item, e.g. "GTQ", "USD",
+   *  "sat". Used for cart-side display labels. */
+  currency: string
   quantity: number
   selected_modifiers: SelectedModifier[]
   note?: string | null
@@ -91,19 +99,42 @@ export const useCartStore = defineStore('restaurant-cart', () => {
     return n
   })
 
-  const restaurantTotalsMsat = computed<Record<string, number>>(() => {
-    const out: Record<string, number> = {}
+  /** Per-restaurant subtotal in that restaurant's declared currency. */
+  const restaurantTotals = computed<
+    Record<string, { amount: number; currency: string }>
+  >(() => {
+    const out: Record<string, { amount: number; currency: string }> = {}
     for (const rid of Object.keys(lines.value)) {
-      out[rid] = lines.value[rid].reduce(
-        (s, l) => s + l.unit_msat * l.quantity,
+      const bucket = lines.value[rid]
+      if (!bucket.length) continue
+      out[rid] = {
+        amount: bucket.reduce(
+          (s, l) => s + l.unit_price * l.quantity,
           0
-      )
+        ),
+        currency: bucket[0].currency,
+      }
     }
     return out
   })
 
-  const grandTotalMsat = computed<number>(() =>
-    Object.values(restaurantTotalsMsat.value).reduce((s, v) => s + v, 0)
+  /**
+   * Single-currency cart subtotal. Returns null if the cart spans
+   * multiple currencies (e.g. one restaurant priced in GTQ + another
+   * in USD via the future festival aggregator) — the UI then falls
+   * back to per-restaurant subtotals only.
+   */
+  const grandTotal = computed<{ amount: number; currency: string } | null>(
+    () => {
+      const totals = Object.values(restaurantTotals.value)
+      if (!totals.length) return null
+      const currencies = new Set(totals.map((t) => t.currency))
+      if (currencies.size !== 1) return null
+      return {
+        amount: totals.reduce((s, t) => s + t.amount, 0),
+        currency: totals[0].currency,
+      }
+    }
   )
 
   function linesFor(restaurantId: string): CartLine[] {
@@ -214,8 +245,8 @@ export const useCartStore = defineStore('restaurant-cart', () => {
     // getters
     restaurantsInCart,
     itemCount,
-    restaurantTotalsMsat,
-    grandTotalMsat,
+    restaurantTotals,
+    grandTotal,
     linesFor,
     // actions
     setActiveRestaurant,

src/modules/restaurant/types/restaurant.ts

@@ -233,6 +233,34 @@ export const KNOWN_ORDER_STATUSES = [
 export type KnownOrderStatus = (typeof KNOWN_ORDER_STATUSES)[number]
 export type OrderStatus = string
 
+/**
+ * Customer-facing labels for order statuses. The extension's raw
+ * status names are operational ('paid' / 'accepted' / 'ready') but
+ * customers prefer human-friendly framing ('Order received' /
+ * 'Cooking' / 'Ready for pickup').
+ *
+ * Future statuses from aiolabs/restaurant#4 (kitchen workflow) —
+ * 'preparing', 'plating', 'at_pass', 'in_service', etc — can land
+ * here as they arrive. Unknown values fall through to the raw
+ * status string titlecased.
+ */
+export const FRIENDLY_ORDER_STATUS: Record<string, string> = {
+  pending: 'Awaiting payment',
+  paid: 'Order received',
+  accepted: 'Cooking',
+  ready: 'Ready for pickup',
+  completed: 'Served',
+  canceled: 'Canceled',
+  refunded: 'Refunded',
+}
+
+export function friendlyOrderStatus(status: OrderStatus): string {
+  if (status in FRIENDLY_ORDER_STATUS) return FRIENDLY_ORDER_STATUS[status]
+  // Unknown status — titlecase the raw key as a graceful fallback.
+  if (!status) return ''
+  return status.charAt(0).toUpperCase() + status.slice(1).replace(/_/g, ' ')
+}
+
 export interface Order {
   id: string
   restaurant_id: string

src/modules/restaurant/views/CartPage.vue

@@ -25,12 +25,12 @@ const buckets = computed(() =>
     // a separate fetch for the cart page header.
     restaurantSlug: cart.linesFor(rid)[0]?.restaurant_slug ?? '',
     lines: cart.linesFor(rid),
-    totalMsat: cart.restaurantTotalsMsat[rid] ?? 0,
+    total: cart.restaurantTotals[rid] ?? null,
   }))
 )
 
-function fmtSat(value: number): string {
-  return `${new Intl.NumberFormat(undefined, { maximumFractionDigits: 2 }).format(value)} sat`
+function fmt(value: number, currency: string): string {
+  return `${new Intl.NumberFormat(undefined, { maximumFractionDigits: 2 }).format(value)} ${currency}`
 }
 </script>
 
@@ -70,7 +70,7 @@ function fmtSat(value: number): string {
               </button>
             </CardTitle>
             <span class="font-mono text-sm text-primary">
-              {{ fmtSat(b.totalMsat) }}
+              {{ b.total ? fmt(b.total.amount, b.total.currency) : '—' }}
             </span>
           </CardHeader>
           <CardContent>
@@ -91,12 +91,16 @@ function fmtSat(value: number): string {
       <Separator class="my-6" />
 
       <div class="space-y-3">
-        <div class="flex items-center justify-between">
+        <div v-if="cart.grandTotal" class="flex items-center justify-between">
           <span class="text-sm text-muted-foreground">Subtotal</span>
           <span class="font-mono text-lg font-semibold text-foreground">
-            {{ fmtSat(cart.grandTotalMsat) }}
+            {{ fmt(cart.grandTotal.amount, cart.grandTotal.currency) }}
           </span>
         </div>
+        <p v-else class="text-xs text-muted-foreground text-center">
+          Cart spans multiple currencies — per-restaurant subtotals above.
+          Lightning sat amount shown at checkout.
+        </p>
         <Button
           class="w-full"
           size="lg"

src/modules/restaurant/views/CheckoutPage.vue

@@ -0,0 +1,452 @@
+<script setup lang="ts">
+/**
+ * Two-phase checkout:
+ *
+ *   Phase 1 — Review:
+ *     · cart subtotal in the menu's declared currency (e.g. GTQ)
+ *     · live ≈sat preview from POST /orders/quote
+ *     · "Place order" CTA → useCheckout.placeOrders()
+ *
+ *   Phase 2 — Pay:
+ *     · OrderInvoiceCard per placed order (QR + amount + copy +
+ *       expiry countdown)
+ *     · "Pay from my LNbits wallet" CTA → useCheckout.payAll()
+ *     · External-wallet scans are detected via per-order polling
+ *       (the extension's invoice listener flips the order to
+ *       paid the moment ANY pay path settles).
+ *     · When all placed orders show paid, auto-redirect to
+ *       /orders/<first-id>.
+ *
+ * Cart lines are cleared per restaurant as each order is observed
+ * paid, so a partial-pay state can be re-checked-out without
+ * duplicates.
+ */
+import { computed, onMounted, onUnmounted, ref, watch } from 'vue'
+import { useRouter } from 'vue-router'
+import {
+  ArrowLeft,
+  CheckCircle2,
+  Loader2,
+  Zap,
+} from 'lucide-vue-next'
+import {
+  Alert,
+  AlertDescription,
+  AlertTitle,
+} from '@/components/ui/alert'
+import { Badge } from '@/components/ui/badge'
+import { Button } from '@/components/ui/button'
+import {
+  Card,
+  CardContent,
+  CardHeader,
+  CardTitle,
+} from '@/components/ui/card'
+import { Separator } from '@/components/ui/separator'
+import OrderInvoiceCard from '../components/OrderInvoiceCard.vue'
+import { useCartStore } from '../stores/cart'
+import { useCheckout, type PlacedOrder } from '../composables/useCheckout'
+import { friendlyOrderStatus } from '../types/restaurant'
+import {
+  injectService,
+  tryInjectService,
+  SERVICE_TOKENS,
+} from '@/core/di-container'
+import type { StorageService } from '@/core/services/StorageService'
+import type { RestaurantAPI } from '../services/RestaurantAPI'
+
+const router = useRouter()
+const cart = useCartStore()
+const { state, placeOrders, payAll, reset } = useCheckout()
+const storage = tryInjectService<StorageService>(SERVICE_TOKENS.STORAGE_SERVICE)
+const api = injectService<RestaurantAPI>(SERVICE_TOKENS.RESTAURANT_API)
+
+// ----------------------------------------------------------------- //
+// review phase                                                       //
+// ----------------------------------------------------------------- //
+
+function fmt(value: number, currency: string) {
+  return `${new Intl.NumberFormat(undefined, { maximumFractionDigits: 2 }).format(value)} ${currency}`
+}
+
+const buckets = computed(() =>
+  cart.restaurantsInCart.map((rid) => ({
+    restaurantId: rid,
+    restaurantSlug: cart.linesFor(rid)[0]?.restaurant_slug ?? '',
+    lines: cart.linesFor(rid),
+    total: cart.restaurantTotals[rid] ?? null,
+  }))
+)
+
+/** Live ≈sat preview: one /orders/quote per restaurant. */
+const previewSatPerRestaurant = ref<Record<string, number | null>>({})
+const previewSatTotal = computed<number | null>(() => {
+  const vals = Object.values(previewSatPerRestaurant.value)
+  if (!vals.length || vals.some((v) => v === null)) return null
+  return (vals as number[]).reduce((s, v) => s + v, 0)
+})
+
+watch(
+  () =>
+    cart.restaurantsInCart.map((rid) => ({
+      rid,
+      lines: cart.linesFor(rid),
+    })),
+  async (groups) => {
+    if (state.value.step !== 'idle') return // freeze preview after place
+    const next: Record<string, number | null> = {}
+    for (const g of groups) {
+      try {
+        const q = await api.quoteOrder(
+          g.lines.map((l) => ({
+            menu_item_id: l.menu_item_id,
+            quantity: l.quantity,
+            selected_modifiers: l.selected_modifiers,
+            note: l.note ?? undefined,
+          }))
+        )
+        next[g.rid] = Math.ceil(q.required_msat / 1000)
+      } catch {
+        next[g.rid] = null
+      }
+    }
+    previewSatPerRestaurant.value = next
+  },
+  { immediate: true, deep: true }
+)
+
+// ----------------------------------------------------------------- //
+// place phase                                                        //
+// ----------------------------------------------------------------- //
+
+onMounted(() => {
+  if (!buckets.value.length && !state.value.placedOrders.length) {
+    router.replace('/cart')
+  }
+})
+
+async function onPlaceOrder() {
+  try {
+    await placeOrders()
+    const entries = state.value.placedOrders.map((p) => ({
+      orderId: p.order.id,
+      restaurantId: p.restaurantId,
+      restaurantSlug: p.restaurantSlug,
+      placedAt: Date.now(),
+      totalMsat: p.order.total_msat,
+    }))
+    if (storage && entries.length) {
+      const existing =
+        storage.getUserData<typeof entries>(
+          'restaurant.lastOrders.v1',
+          []
+        ) || []
+      const merged = [...entries, ...existing].slice(0, 50)
+      storage.setUserData('restaurant.lastOrders.v1', merged)
+    }
+  } catch (err) {
+    state.value.step = 'error'
+    state.value.error = err instanceof Error ? err.message : String(err)
+  }
+}
+
+// ----------------------------------------------------------------- //
+// pay phase + poller                                                 //
+// ----------------------------------------------------------------- //
+
+const liveStatusByOrderId = ref<Record<string, string>>({})
+
+function statusOf(orderId: string): string {
+  return (
+    liveStatusByOrderId.value[orderId] ||
+    state.value.placedOrders.find((p) => p.order.id === orderId)?.order
+      .status ||
+    'pending'
+  )
+}
+
+function isPaid(orderId: string): boolean {
+  const s = statusOf(orderId)
+  return ['paid', 'accepted', 'ready', 'completed'].includes(s)
+}
+
+const allPaid = computed(() => {
+  if (!state.value.placedOrders.length) return false
+  return state.value.placedOrders.every((p) => isPaid(p.order.id))
+})
+
+let pollTimer: ReturnType<typeof setInterval> | null = null
+
+function startPolling() {
+  if (pollTimer) return
+  pollTimer = setInterval(async () => {
+    if (!state.value.placedOrders.length) return
+    for (const p of state.value.placedOrders) {
+      if (isPaid(p.order.id)) continue
+      try {
+        const fresh = await api.getOrder(p.order.id)
+        liveStatusByOrderId.value = {
+          ...liveStatusByOrderId.value,
+          [p.order.id]: fresh.order.status,
+        }
+        if (
+          ['paid', 'accepted', 'ready', 'completed'].includes(
+            fresh.order.status
+          )
+        ) {
+          cart.clearRestaurant(p.restaurantId)
+        }
+      } catch {
+        // transient — try again next tick
+      }
+    }
+  }, 3000)
+}
+
+function stopPolling() {
+  if (pollTimer) {
+    clearInterval(pollTimer)
+    pollTimer = null
+  }
+}
+
+watch(allPaid, (paid) => {
+  if (paid && state.value.placedOrders.length) {
+    stopPolling()
+    setTimeout(() => {
+      const first = state.value.placedOrders[0]
+      if (first) router.push(`/orders/${first.order.id}`)
+    }, 1200)
+  }
+})
+
+watch(
+  () => state.value.placedOrders.length,
+  (n) => {
+    if (n > 0) startPolling()
+    else stopPolling()
+  }
+)
+
+onUnmounted(stopPolling)
+
+const isPlacing = computed(() =>
+  ['quoting', 'placing'].includes(state.value.step)
+)
+const isPaying = computed(() => state.value.step === 'paying')
+
+async function onPayAll() {
+  state.value.error = null
+  try {
+    await payAll()
+  } catch {
+    // useCheckout sets state.error already.
+  }
+}
+
+function startOver() {
+  reset()
+}
+
+function buildOrderInvoice(p: PlacedOrder) {
+  return p.invoice
+}
+</script>
+
+<template>
+  <main class="container mx-auto max-w-2xl px-4 pb-24 pt-3 sm:py-6">
+    <Button
+      variant="ghost"
+      size="sm"
+      class="mb-3"
+      :disabled="isPlacing || isPaying"
+      @click="router.back()"
+    >
+      <ArrowLeft class="mr-2 h-4 w-4" />
+      Back
+    </Button>
+
+    <h1 class="mb-4 text-2xl font-bold text-foreground">Checkout</h1>
+
+    <!-- Phase 1 — Review (before orders are placed) -->
+    <template v-if="!state.placedOrders.length">
+      <div class="space-y-4">
+        <Card v-for="b in buckets" :key="b.restaurantId">
+          <CardHeader class="flex flex-row items-baseline justify-between space-y-0">
+            <CardTitle class="text-base">{{ b.restaurantSlug }}</CardTitle>
+            <span class="font-mono text-sm text-primary">
+              {{ b.total ? fmt(b.total.amount, b.total.currency) : '—' }}
+            </span>
+          </CardHeader>
+          <CardContent class="space-y-1">
+            <div
+              v-for="line in b.lines"
+              :key="line.line_id"
+              class="flex items-center justify-between text-sm"
+            >
+              <span class="text-foreground">
+                {{ line.quantity }}× {{ line.name }}
+                <span
+                  v-if="line.selected_modifiers.length"
+                  class="text-muted-foreground"
+                >
+                  · {{ line.selected_modifiers.map((m) => m.name).join(', ') }}
+                </span>
+              </span>
+              <span class="font-mono text-xs text-muted-foreground">
+                {{ fmt(line.unit_price * line.quantity, line.currency) }}
+              </span>
+            </div>
+            <div
+              v-if="previewSatPerRestaurant[b.restaurantId] != null"
+              class="mt-1 flex items-center justify-end gap-1 text-xs text-muted-foreground"
+            >
+              <Zap class="h-3 w-3" />
+              ≈ {{ new Intl.NumberFormat().format(previewSatPerRestaurant[b.restaurantId]!) }} sat
+            </div>
+          </CardContent>
+        </Card>
+      </div>
+
+      <Separator class="my-6" />
+
+      <div class="space-y-3">
+        <div v-if="cart.grandTotal" class="flex items-baseline justify-between">
+          <span class="text-sm text-muted-foreground">Total</span>
+          <span class="font-mono text-xl font-bold text-foreground">
+            {{ fmt(cart.grandTotal.amount, cart.grandTotal.currency) }}
+          </span>
+        </div>
+        <div
+          v-if="previewSatTotal != null"
+          class="flex items-center justify-between rounded-lg border border-border bg-muted/40 px-3 py-2 text-sm"
+        >
+          <span class="inline-flex items-center gap-1 text-muted-foreground">
+            <Zap class="h-3.5 w-3.5" />
+            Pay in sats
+          </span>
+          <span class="font-mono font-semibold text-foreground">
+            ≈ {{ new Intl.NumberFormat().format(previewSatTotal) }} sat
+          </span>
+        </div>
+
+        <Alert
+          v-if="state.step === 'error' && state.error"
+          variant="destructive"
+        >
+          <AlertTitle>Couldn't place order</AlertTitle>
+          <AlertDescription>{{ state.error }}</AlertDescription>
+        </Alert>
+
+        <Button
+          size="lg"
+          class="w-full"
+          :disabled="isPlacing || !buckets.length"
+          @click="onPlaceOrder"
+        >
+          <Loader2 v-if="isPlacing" class="mr-2 h-4 w-4 animate-spin" />
+          <span v-if="state.step === 'quoting'">Quoting…</span>
+          <span v-else-if="state.step === 'placing'">Placing orders…</span>
+          <span v-else>Place order</span>
+        </Button>
+        <p
+          v-if="isPlacing && state.currentRestaurantSlug"
+          class="text-center text-xs text-muted-foreground"
+        >
+          {{ state.currentRestaurantSlug }} ({{ state.progress.current + 1 }} of {{ state.progress.total }})
+        </p>
+      </div>
+    </template>
+
+    <!-- Phase 2 — Pay (orders placed, invoice(s) to settle) -->
+    <template v-else>
+      <Alert v-if="allPaid" class="mb-4 border-emerald-500/40">
+        <CheckCircle2 class="h-4 w-4 text-emerald-500" />
+        <AlertTitle>Payment received</AlertTitle>
+        <AlertDescription>Redirecting to your order…</AlertDescription>
+      </Alert>
+
+      <p v-if="!allPaid" class="mb-4 text-sm text-muted-foreground">
+        Scan with any Lightning wallet, or tap the button below to
+        pay from your LNbits wallet.
+      </p>
+
+      <div class="space-y-4">
+        <div
+          v-for="placed in state.placedOrders"
+          :key="placed.order.id"
+        >
+          <div class="mb-2 flex items-center justify-between">
+            <span class="text-sm font-semibold text-foreground">
+              {{ placed.restaurantSlug }}
+            </span>
+            <Badge
+              :variant="isPaid(placed.order.id) ? 'default' : 'outline'"
+              class="text-xs"
+            >
+              {{ friendlyOrderStatus(statusOf(placed.order.id)) }}
+            </Badge>
+          </div>
+          <OrderInvoiceCard
+            v-if="buildOrderInvoice(placed) && !isPaid(placed.order.id)"
+            :invoice="buildOrderInvoice(placed)!"
+          />
+          <Alert
+            v-else-if="isPaid(placed.order.id)"
+            class="border-emerald-500/40"
+          >
+            <CheckCircle2 class="h-4 w-4 text-emerald-500" />
+            <AlertTitle>Paid</AlertTitle>
+            <AlertDescription>
+              <Button
+                variant="link"
+                class="h-auto p-0"
+                @click="router.push(`/orders/${placed.order.id}`)"
+              >
+                View order →
+              </Button>
+            </AlertDescription>
+          </Alert>
+          <Card v-else>
+            <CardContent class="p-4 text-sm text-muted-foreground">
+              No Lightning invoice — payment is handled out-of-band.
+            </CardContent>
+          </Card>
+        </div>
+      </div>
+
+      <Separator class="my-6" />
+
+      <div class="space-y-3">
+        <Alert v-if="state.error" variant="destructive">
+          <AlertTitle>Payment didn't go through</AlertTitle>
+          <AlertDescription>
+            {{ state.error }} You can still scan the QR with another
+            wallet.
+          </AlertDescription>
+        </Alert>
+
+        <Button
+          v-if="!allPaid"
+          size="lg"
+          class="w-full"
+          :disabled="isPaying"
+          @click="onPayAll"
+        >
+          <Loader2 v-if="isPaying" class="mr-2 h-4 w-4 animate-spin" />
+          <Zap v-else class="mr-2 h-4 w-4" />
+          Pay from my LNbits wallet
+        </Button>
+
+        <Button
+          v-if="!allPaid"
+          variant="ghost"
+          class="w-full text-xs text-muted-foreground"
+          @click="startOver"
+        >
+          Cancel and start over
+        </Button>
+      </div>
+    </template>
+  </main>
+</template>

src/modules/restaurant/views/ItemPage.vue

@@ -87,7 +87,8 @@ function addToCart() {
     restaurant_slug: restaurant.value.slug,
     menu_item_id: item.value.id,
     name: item.value.name,
-    unit_msat: unitPrice.value,
+    unit_price: unitPrice.value,
+    currency: item.value.currency || restaurant.value.currency,
     quantity: quantity.value,
     selected_modifiers: selectedModifiers.value,
     note: note.value || null,

src/modules/restaurant/views/OrderStatusPage.vue

@@ -0,0 +1,279 @@
+<script setup lang="ts">
+/**
+ * Order status — polls the extension every `orderPollMs` while the
+ * order is still in a non-terminal state. Shows the bolt11
+ * invoice QR for orders still in `pending`, the status pill, the
+ * line items, and timestamps for each transition.
+ *
+ * Future tier-#2 / kitchen-workflow #4 may add ETA, course pacing,
+ * and per-station status — `Order.status` is intentionally an open
+ * string type so this view degrades gracefully on unknown states.
+ */
+import { computed, toRef } from 'vue'
+import { useRoute, useRouter } from 'vue-router'
+import {
+  ArrowLeft,
+  Loader2,
+  AlertCircle,
+  CheckCircle2,
+  Clock,
+} from 'lucide-vue-next'
+import { Alert, AlertDescription, AlertTitle } from '@/components/ui/alert'
+import { Badge } from '@/components/ui/badge'
+import { Button } from '@/components/ui/button'
+import {
+  Card,
+  CardContent,
+  CardHeader,
+  CardTitle,
+} from '@/components/ui/card'
+import OrderInvoiceCard from '../components/OrderInvoiceCard.vue'
+import { useOrder } from '../composables/useOrder'
+import {
+  KNOWN_ORDER_STATUSES,
+  friendlyOrderStatus,
+  type OrderInvoice,
+} from '../types/restaurant'
+
+const route = useRoute()
+const router = useRouter()
+
+const orderId = computed(() => String(route.params.id || ''))
+const { order, items, isLoading, error, refresh } = useOrder(
+  toRef(() => orderId.value)
+)
+
+const statusStyle = computed(() => {
+  const status = order.value?.status
+  const known = (KNOWN_ORDER_STATUSES as readonly string[]).includes(
+    status ?? ''
+  )
+  if (!known) return 'secondary' as const
+  switch (status) {
+    case 'pending':
+      return 'outline' as const
+    case 'paid':
+    case 'accepted':
+    case 'ready':
+      return 'default' as const
+    case 'completed':
+      return 'default' as const
+    case 'canceled':
+    case 'refunded':
+      return 'destructive' as const
+    default:
+      return 'secondary' as const
+  }
+})
+
+const invoice = computed<OrderInvoice | null>(() => {
+  if (!order.value) return null
+  if (!order.value.bolt11 || !order.value.payment_hash) return null
+  if (order.value.status !== 'pending') return null
+  // The extension's POST /orders response carries the OrderInvoice
+  // separately; once paid, we don't re-render the QR. We rebuild a
+  // best-effort OrderInvoice from the order's own fields here so a
+  // refresh on /orders/:id (e.g. shareable URL) still shows the QR
+  // while still pending.
+  return {
+    order_id: order.value.id,
+    payment_hash: order.value.payment_hash,
+    bolt11: order.value.bolt11,
+    amount_msat: order.value.total_msat,
+    // We don't have the real expires_at on the GET response. Use a
+    // safe far-future placeholder so the countdown shows "expires
+    // in 15:00" optimistically — the OrderInvoiceCard tolerates this.
+    expires_at: Math.floor(Date.now() / 1000) + 900,
+  }
+})
+
+function fmtSat(value: number) {
+  return `${new Intl.NumberFormat(undefined, { maximumFractionDigits: 2 }).format(value / 1000)} sat`
+}
+
+function fmtTime(iso: string | null | undefined) {
+  if (!iso) return ''
+  try {
+    return new Date(iso).toLocaleString()
+  } catch {
+    return iso
+  }
+}
+
+const timeline = computed(() => {
+  if (!order.value) return [] as Array<{ label: string; at: string }>
+  const out: Array<{ label: string; at: string }> = []
+  if (order.value.time) out.push({ label: 'Placed', at: order.value.time })
+  if (order.value.paid_at) out.push({ label: 'Paid', at: order.value.paid_at })
+  if (order.value.accepted_at)
+    out.push({ label: 'Accepted', at: order.value.accepted_at })
+  if (order.value.ready_at) out.push({ label: 'Ready', at: order.value.ready_at })
+  if (order.value.completed_at)
+    out.push({ label: 'Completed', at: order.value.completed_at })
+  if (order.value.canceled_at)
+    out.push({ label: 'Canceled', at: order.value.canceled_at })
+  return out
+})
+</script>
+
+<template>
+  <main class="container mx-auto max-w-2xl px-4 pb-24 pt-3 sm:py-6">
+    <Button variant="ghost" size="sm" class="mb-3" @click="router.push('/orders')">
+      <ArrowLeft class="mr-2 h-4 w-4" />
+      All orders
+    </Button>
+
+    <div
+      v-if="isLoading && !order"
+      class="flex items-center justify-center py-16 text-muted-foreground"
+    >
+      <Loader2 class="mr-2 h-5 w-5 animate-spin" />
+      Loading order…
+    </div>
+
+    <Alert v-else-if="error" variant="destructive">
+      <AlertCircle class="h-4 w-4" />
+      <AlertTitle>Couldn't load order</AlertTitle>
+      <AlertDescription class="mt-2">
+        <p>{{ error.message }}</p>
+        <Button variant="outline" size="sm" class="mt-3" @click="refresh">
+          Try again
+        </Button>
+      </AlertDescription>
+    </Alert>
+
+    <template v-else-if="order">
+      <header class="mb-4 flex items-start justify-between">
+        <div>
+          <h1 class="text-2xl font-bold text-foreground">Order</h1>
+          <p class="font-mono text-xs text-muted-foreground">
+            {{ order.id.slice(0, 12) }}…
+          </p>
+        </div>
+        <Badge :variant="statusStyle" class="text-sm">
+          {{ friendlyOrderStatus(order.status) }}
+        </Badge>
+      </header>
+
+      <OrderInvoiceCard
+        v-if="invoice"
+        :invoice="invoice"
+        class="mb-4"
+      />
+
+      <Alert
+        v-else-if="order.status === 'paid'"
+        class="mb-4 border-emerald-500/40"
+      >
+        <CheckCircle2 class="h-4 w-4 text-emerald-500" />
+        <AlertTitle>Order received</AlertTitle>
+        <AlertDescription>
+          Payment confirmed — the kitchen will start preparing it
+          shortly.
+        </AlertDescription>
+      </Alert>
+
+      <Alert
+        v-else-if="order.status === 'accepted'"
+        class="mb-4 border-emerald-500/40"
+      >
+        <CheckCircle2 class="h-4 w-4 text-emerald-500" />
+        <AlertTitle>Cooking</AlertTitle>
+        <AlertDescription>
+          Your food is being made.
+        </AlertDescription>
+      </Alert>
+
+      <Alert
+        v-else-if="order.status === 'ready'"
+        class="mb-4 border-amber-500/40"
+      >
+        <Clock class="h-4 w-4 text-amber-500" />
+        <AlertTitle>Ready for pickup</AlertTitle>
+        <AlertDescription>
+          Pick up at the counter.
+        </AlertDescription>
+      </Alert>
+
+      <Alert
+        v-else-if="order.status === 'completed'"
+        class="mb-4 border-emerald-500/40"
+      >
+        <CheckCircle2 class="h-4 w-4 text-emerald-500" />
+        <AlertTitle>Served</AlertTitle>
+        <AlertDescription>Enjoy! Thanks for ordering.</AlertDescription>
+      </Alert>
+
+      <Card class="mb-4">
+        <CardHeader>
+          <CardTitle class="text-base">Items</CardTitle>
+        </CardHeader>
+        <CardContent class="space-y-1">
+          <div
+            v-for="line in items"
+            :key="line.id"
+            class="flex items-start justify-between text-sm"
+          >
+            <span class="text-foreground">
+              {{ line.quantity }}× {{ line.name }}
+              <span
+                v-if="line.selected_modifiers.length"
+                class="block text-xs text-muted-foreground"
+              >
+                {{ line.selected_modifiers.map((m) => m.name).join(', ') }}
+              </span>
+              <span
+                v-if="line.note"
+                class="block text-xs italic text-muted-foreground"
+              >
+                Note: {{ line.note }}
+              </span>
+            </span>
+            <span class="font-mono text-xs text-muted-foreground">
+              {{ fmtSat(line.line_total_msat) }}
+            </span>
+          </div>
+        </CardContent>
+      </Card>
+
+      <Card v-if="timeline.length" class="mb-4">
+        <CardHeader>
+          <CardTitle class="text-base">Timeline</CardTitle>
+        </CardHeader>
+        <CardContent>
+          <ol class="space-y-1.5 text-sm">
+            <li
+              v-for="(entry, i) in timeline"
+              :key="i"
+              class="flex items-baseline justify-between"
+            >
+              <span class="text-foreground">{{ entry.label }}</span>
+              <span class="font-mono text-xs text-muted-foreground">
+                {{ fmtTime(entry.at) }}
+              </span>
+            </li>
+          </ol>
+        </CardContent>
+      </Card>
+
+      <div class="space-y-1 text-sm">
+        <div class="flex justify-between">
+          <span class="text-muted-foreground">Subtotal</span>
+          <span class="font-mono">{{ fmtSat(order.subtotal_msat) }}</span>
+        </div>
+        <div v-if="order.tax_msat" class="flex justify-between">
+          <span class="text-muted-foreground">Tax</span>
+          <span class="font-mono">{{ fmtSat(order.tax_msat) }}</span>
+        </div>
+        <div v-if="order.tip_msat" class="flex justify-between">
+          <span class="text-muted-foreground">Tip</span>
+          <span class="font-mono">{{ fmtSat(order.tip_msat) }}</span>
+        </div>
+        <div class="flex justify-between border-t border-border pt-2 text-base font-semibold">
+          <span>Total</span>
+          <span class="font-mono">{{ fmtSat(order.total_msat) }}</span>
+        </div>
+      </div>
+    </template>
+  </main>
+</template>

src/modules/restaurant/views/OrdersListPage.vue

@@ -0,0 +1,228 @@
+<script setup lang="ts">
+/**
+ * Lists past orders the customer has placed from this device.
+ *
+ * Source of truth for the *list* is STORAGE_SERVICE
+ * ['restaurant.lastOrders.v1'] (newest first, cap 50) — appended to
+ * by CheckoutPage. Each stored entry is enough to deep-link to
+ * /orders/:id, but it freezes the order's totals + status at the
+ * moment it was placed.
+ *
+ * On mount we hydrate each row from `RestaurantAPI.getOrder(id)` so
+ * the list shows the *live* status (e.g. an order placed an hour
+ * ago might be `ready` now) and the fiat amount the customer
+ * originally paid in. Missing / 404 orders fall back to the stored
+ * snapshot so a deleted order doesn't poison the page.
+ */
+import { computed, onMounted, ref } from 'vue'
+import { useRouter } from 'vue-router'
+import { ReceiptText, RefreshCw } from 'lucide-vue-next'
+import { Alert, AlertDescription, AlertTitle } from '@/components/ui/alert'
+import { Badge } from '@/components/ui/badge'
+import { Button } from '@/components/ui/button'
+import { Card, CardContent } from '@/components/ui/card'
+import {
+  injectService,
+  tryInjectService,
+  SERVICE_TOKENS,
+} from '@/core/di-container'
+import type { StorageService } from '@/core/services/StorageService'
+import type { RestaurantAPI } from '../services/RestaurantAPI'
+import {
+  KNOWN_ORDER_STATUSES,
+  friendlyOrderStatus,
+  type Order,
+  type OrderStatus,
+} from '../types/restaurant'
+
+const router = useRouter()
+const storage = tryInjectService<StorageService>(
+  SERVICE_TOKENS.STORAGE_SERVICE
+)
+const api = injectService<RestaurantAPI>(SERVICE_TOKENS.RESTAURANT_API)
+
+interface OrderHistoryEntry {
+  orderId: string
+  restaurantId: string
+  restaurantSlug: string
+  placedAt: number
+  totalMsat: number
+}
+
+const orders = ref<OrderHistoryEntry[]>([])
+const liveByOrderId = ref<Record<string, Order | null>>({})
+const isRefreshing = ref(false)
+
+// Re-fetches every history row's live status + fiat. Used both on
+// mount and from the manual refresh button — the extension doesn't
+// push order-status changes today (NIP-17 status DMs are tracked in
+// aiolabs/restaurant#9), so the customer hits this to pick up
+// kitchen-side transitions.
+async function refresh(): Promise<void> {
+  isRefreshing.value = true
+  try {
+    await Promise.all(
+      orders.value.map(async (entry) => {
+        try {
+          const { order } = await api.getOrder(entry.orderId)
+          liveByOrderId.value[entry.orderId] = order
+        } catch {
+          liveByOrderId.value[entry.orderId] = null
+        }
+      })
+    )
+  } finally {
+    isRefreshing.value = false
+  }
+}
+
+onMounted(async () => {
+  orders.value =
+    storage?.getUserData<OrderHistoryEntry[]>(
+      'restaurant.lastOrders.v1',
+      []
+    ) || []
+  await refresh()
+})
+
+function fmtSat(value: number) {
+  return `${new Intl.NumberFormat(undefined, { maximumFractionDigits: 2 }).format(value / 1000)} sat`
+}
+
+function fmtFiat(amount: number, currency: string) {
+  try {
+    return new Intl.NumberFormat(undefined, {
+      style: 'currency',
+      currency,
+      maximumFractionDigits: 2,
+    }).format(amount)
+  } catch {
+    // Unknown / non-ISO currency code — fall back to a plain number.
+    return `${amount.toFixed(2)} ${currency}`
+  }
+}
+
+function statusVariant(
+  status: OrderStatus | undefined
+): 'default' | 'secondary' | 'outline' | 'destructive' {
+  const known = (KNOWN_ORDER_STATUSES as readonly string[]).includes(
+    status ?? ''
+  )
+  if (!known) return 'secondary'
+  switch (status) {
+    case 'pending':
+      return 'outline'
+    case 'paid':
+    case 'accepted':
+    case 'ready':
+    case 'completed':
+      return 'default'
+    case 'canceled':
+    case 'refunded':
+      return 'destructive'
+    default:
+      return 'secondary'
+  }
+}
+
+function fmtTime(ts: number) {
+  return new Date(ts).toLocaleString()
+}
+
+const grouped = computed(() => {
+  const groups = new Map<string, OrderHistoryEntry[]>()
+  for (const o of orders.value) {
+    const day = new Date(o.placedAt).toLocaleDateString()
+    if (!groups.has(day)) groups.set(day, [])
+    groups.get(day)!.push(o)
+  }
+  return Array.from(groups.entries()).map(([day, items]) => ({
+    day,
+    items,
+  }))
+})
+</script>
+
+<template>
+  <main class="container mx-auto max-w-2xl px-4 pb-24 pt-3 sm:py-6">
+    <h1 class="mb-4 text-2xl font-bold text-foreground">Your orders</h1>
+
+    <Alert v-if="!orders.length" class="border-border">
+      <ReceiptText class="h-4 w-4" />
+      <AlertTitle>No orders yet</AlertTitle>
+      <AlertDescription>
+        Place an order and it'll show up here.
+      </AlertDescription>
+    </Alert>
+
+    <template v-else>
+      <section
+        v-for="group in grouped"
+        :key="group.day"
+        class="mb-6"
+      >
+        <h2 class="mb-2 text-xs font-semibold uppercase tracking-wide text-muted-foreground">
+          {{ group.day }}
+        </h2>
+        <div class="space-y-2">
+          <Card
+            v-for="o in group.items"
+            :key="o.orderId"
+            class="cursor-pointer transition-colors hover:bg-accent"
+            @click="router.push(`/orders/${o.orderId}`)"
+          >
+            <CardContent class="p-3 sm:p-4">
+              <div class="flex items-center justify-between gap-3">
+                <div class="min-w-0">
+                  <p class="line-clamp-1 font-semibold text-foreground">
+                    {{ o.restaurantSlug }}
+                  </p>
+                  <p class="font-mono text-[10px] text-muted-foreground">
+                    {{ o.orderId.slice(0, 12) }}…
+                    · {{ fmtTime(o.placedAt) }}
+                  </p>
+                  <Badge
+                    v-if="liveByOrderId[o.orderId]"
+                    :variant="statusVariant(liveByOrderId[o.orderId]?.status)"
+                    class="mt-1.5"
+                  >
+                    {{ friendlyOrderStatus(liveByOrderId[o.orderId]!.status) }}
+                  </Badge>
+                </div>
+                <div class="shrink-0 text-right">
+                  <p class="font-mono text-sm font-semibold text-primary">
+                    {{ fmtSat(o.totalMsat) }}
+                  </p>
+                  <p
+                    v-if="liveByOrderId[o.orderId]?.fiat_amount"
+                    class="font-mono text-[10px] text-muted-foreground"
+                  >
+                    ≈ {{ fmtFiat(
+                      liveByOrderId[o.orderId]!.fiat_amount!,
+                      liveByOrderId[o.orderId]!.currency_display
+                    ) }}
+                  </p>
+                </div>
+              </div>
+            </CardContent>
+          </Card>
+        </div>
+      </section>
+    </template>
+
+    <Button
+      v-if="orders.length"
+      variant="default"
+      size="icon"
+      :disabled="isRefreshing"
+      aria-label="Refresh orders"
+      class="fixed bottom-20 right-4 z-40 h-12 w-12 rounded-full shadow-lg"
+      @click="refresh"
+    >
+      <RefreshCw
+        class="h-5 w-5"
+        :class="{ 'animate-spin': isRefreshing }"
+      />
+    </Button>
+  </main>
+</template>

src/modules/restaurant/views/RestaurantPage.vue

@@ -11,7 +11,7 @@
  * handles modifier selection and "Add to cart" (cart store lands in
  * commit 5).
  */
-import { computed, toRef } from 'vue'
+import { computed, onBeforeUnmount, toRef, watch } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
 import { Loader2, AlertCircle } from 'lucide-vue-next'
 import { Alert, AlertDescription, AlertTitle } from '@/components/ui/alert'
@@ -21,16 +21,48 @@ import CategoryNav from '../components/CategoryNav.vue'
 import MenuTree from '../components/MenuTree.vue'
 import { useMenu } from '../composables/useMenu'
 import { useCartStore } from '../stores/cart'
+import {
+  tryInjectService,
+  SERVICE_TOKENS,
+} from '@/core/di-container'
+import type { RestaurantNostrSync } from '../services/RestaurantNostrSync'
 
 const route = useRoute()
 const router = useRouter()
 const cart = useCartStore()
+const sync = tryInjectService<RestaurantNostrSync>(
+  SERVICE_TOKENS.RESTAURANT_NOSTR_SYNC
+)
 
 const slug = computed(() => String(route.params.slug || ''))
 const { restaurant, tree, items, isLoading, error, refresh } = useMenu(
   toRef(() => slug.value)
 )
 
+// Open the Nostr live-overlay subscription the moment we know the
+// restaurant's pubkey + id. Close it on route leave / unmount. If
+// the relay hub isn't connected, sync.subscribe is a no-op (REST
+// continues to work; the overlay is best-effort polish).
+let activeRestaurantId: string | null = null
+watch(restaurant, (r) => {
+  if (!sync) return
+  if (activeRestaurantId && activeRestaurantId !== r?.id) {
+    sync.unsubscribe(activeRestaurantId)
+    activeRestaurantId = null
+  }
+  if (r?.nostr_pubkey && r.id !== activeRestaurantId) {
+    sync.subscribe(r.nostr_pubkey, r.id)
+    activeRestaurantId = r.id
+  }
+})
+
+onBeforeUnmount(() => {
+  if (sync && activeRestaurantId) {
+    sync.unsubscribe(activeRestaurantId)
+    activeRestaurantId = null
+  }
+})
+
 function openItem(itemId: string) {
   router.push(`/r/${slug.value}/item/${itemId}`)
 }
@@ -52,7 +84,8 @@ function quickAdd(itemId: string) {
     restaurant_slug: restaurant.value.slug,
     menu_item_id: it.id,
     name: it.name,
-    unit_msat: it.price,
+    unit_price: it.price,
+    currency: it.currency || restaurant.value.currency,
     quantity: 1,
     selected_modifiers: [],
     note: null,

src/modules/restaurant/views/SettingsPage.vue

@@ -0,0 +1,153 @@
+<script setup lang="ts">
+/**
+ * Customer-side preferences. v1 ships:
+ *   - currency display toggle (sats / msat)
+ *   - optional relay override (comma-separated; restart required
+ *     because RelayHub is initialized once at boot)
+ *
+ * Persisted to STORAGE_SERVICE['restaurant.settings.v1'].
+ *
+ * Future tier-#2 may surface mode-gated toggles here (e.g. NIP-17
+ * order intake when #9 ships); the `features:{}` slot in the
+ * module config is the integration point.
+ */
+import { onMounted, ref, watch } from 'vue'
+import { useRouter } from 'vue-router'
+import { ArrowLeft, Trash2 } from 'lucide-vue-next'
+import { Button } from '@/components/ui/button'
+import {
+  Card,
+  CardContent,
+  CardHeader,
+  CardTitle,
+} from '@/components/ui/card'
+import { Input } from '@/components/ui/input'
+import { Label } from '@/components/ui/label'
+import { Switch } from '@/components/ui/switch'
+import {
+  tryInjectService,
+  SERVICE_TOKENS,
+} from '@/core/di-container'
+import type { StorageService } from '@/core/services/StorageService'
+import { useCartStore } from '../stores/cart'
+
+const router = useRouter()
+const storage = tryInjectService<StorageService>(
+  SERVICE_TOKENS.STORAGE_SERVICE
+)
+const cart = useCartStore()
+
+interface RestaurantSettings {
+  currencyDisplay: 'sats' | 'msat'
+  relayOverride?: string
+}
+
+const settings = ref<RestaurantSettings>({
+  currencyDisplay: 'sats',
+  relayOverride: '',
+})
+
+onMounted(() => {
+  settings.value =
+    storage?.getUserData<RestaurantSettings>('restaurant.settings.v1', {
+      currencyDisplay: 'sats',
+    }) || { currencyDisplay: 'sats' }
+})
+
+watch(
+  settings,
+  (val) => {
+    storage?.setUserData('restaurant.settings.v1', val)
+  },
+  { deep: true }
+)
+
+function clearLocalData() {
+  if (!confirm('Clear cart, recent venues, and order history on this device?')) {
+    return
+  }
+  cart.clear()
+  storage?.clearUserData('restaurant.cart.v1')
+  storage?.clearUserData('restaurant.lastOrders.v1')
+  storage?.clearUserData('restaurant.recentRestaurants.v1')
+}
+</script>
+
+<template>
+  <main class="container mx-auto max-w-2xl px-4 pb-24 pt-3 sm:py-6">
+    <Button variant="ghost" size="sm" class="mb-3" @click="router.back()">
+      <ArrowLeft class="mr-2 h-4 w-4" />
+      Back
+    </Button>
+
+    <h1 class="mb-4 text-2xl font-bold text-foreground">Settings</h1>
+
+    <Card class="mb-4">
+      <CardHeader>
+        <CardTitle class="text-base">Display</CardTitle>
+      </CardHeader>
+      <CardContent class="space-y-3">
+        <div class="flex items-center justify-between">
+          <Label class="text-sm" for="currency-toggle">
+            Show prices in millisats
+          </Label>
+          <Switch
+            id="currency-toggle"
+            :model-value="settings.currencyDisplay === 'msat'"
+            @update:model-value="
+              (val) =>
+                (settings.currencyDisplay = val ? 'msat' : 'sats')
+            "
+          />
+        </div>
+        <p class="text-xs text-muted-foreground">
+          Currently:
+          <code class="font-mono">{{ settings.currencyDisplay }}</code>.
+          Order totals from the extension are always msat; this is
+          local display only.
+        </p>
+      </CardContent>
+    </Card>
+
+    <Card class="mb-4">
+      <CardHeader>
+        <CardTitle class="text-base">Nostr relays</CardTitle>
+      </CardHeader>
+      <CardContent class="space-y-3">
+        <Label for="relay-override" class="text-sm">
+          Override relays (comma-separated)
+        </Label>
+        <Input
+          id="relay-override"
+          v-model.trim="settings.relayOverride"
+          placeholder="wss://relay.example.com, wss://nos.lol"
+          class="font-mono text-xs"
+        />
+        <p class="text-xs text-muted-foreground">
+          Reload the app for changes to take effect — the relay hub
+          initializes once on boot.
+        </p>
+      </CardContent>
+    </Card>
+
+    <Card>
+      <CardHeader>
+        <CardTitle class="text-base">Local data</CardTitle>
+      </CardHeader>
+      <CardContent>
+        <Button
+          variant="destructive"
+          size="sm"
+          @click="clearLocalData"
+        >
+          <Trash2 class="mr-2 h-4 w-4" />
+          Clear cart + history
+        </Button>
+        <p class="mt-2 text-xs text-muted-foreground">
+          Wipes the cart, recent venues, and order history from this
+          device. Doesn't refund or cancel any placed orders.
+        </p>
+      </CardContent>
+    </Card>
+  </main>
+</template>