feat(01-03): paid tick renders the branded screensaver ring (FED-06)

Both paid-tick surfaces now show the EQ-segment ring instead of a CSS ripple
burst (send modal) and a plain circle (scan modal), via a new `badge` size
variant at 160px/192px with matching --viz-radius. A transform scale of the
compact variant was ruled out in 01-UI-SPEC.md because it would scale segment
stroke width and blur along with the geometry.

Both surfaces use the identical composition — a badge-sized relative container
with the checkmark core absolutely centred over the ring — so the two ticks
cannot drift apart visually.

ScreensaverRing also gains the prefers-reduced-motion guard it never had, on
the component rather than per call site, so the screensaver and
SystemDangerZone variants are covered too.

Also records live-browser verification for 01-13's scroll cue (three
viewports, plus a geometry probe of the hide condition).

Verified: 5 new tests; full suite 102 files / 822 tests green; npm run build
clean with viz-ring-badge present in the built bundle. The live visual
no-clipping observation Task 2 asks for is explicitly NOT done — recorded as
deferred to plan 01-07's consolidated sign-off.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

neode-ui/src/components/ScreensaverRing.vue

@@ -14,13 +14,18 @@ import { computed } from 'vue'
 
 const props = withDefaults(defineProps<{
   /** Visual size: 'default' matches the screensaver; 'compact' drops the
-   *  min-width breakpoints (useful inside overlays on narrower canvases). */
-  size?: 'default' | 'compact'
+   *  min-width breakpoints (useful inside overlays on narrower canvases);
+   *  'badge' is the paid-tick size that fits inside a modal card (FED-06). */
+  size?: 'default' | 'compact' | 'badge'
   /** Override segment count. Defaults to 48 (screensaver standard). */
   segmentCount?: number
 }>(), { size: 'default', segmentCount: 48 })
 
-const sizeClass = computed(() => props.size === 'compact' ? 'viz-ring-compact' : 'viz-ring-default')
+const sizeClass = computed(() => {
+  if (props.size === 'compact') return 'viz-ring-compact'
+  if (props.size === 'badge') return 'viz-ring-badge'
+  return 'viz-ring-default'
+})
 
 function getSegmentStyle(i: number) {
   const deg = (i / props.segmentCount) * 360
@@ -70,6 +75,21 @@ function getSegmentStyle(i: number) {
   }
 }
 
+/* Paid-tick badge (FED-06) — sized to sit inside a modal card without
+   clipping, unlike the compact variant (240-320px against a ~112px core). */
+.viz-ring-badge {
+  width: 160px;
+  height: 160px;
+  --viz-radius: 80px;
+}
+@media (min-width: 768px) {
+  .viz-ring-badge {
+    width: 192px;
+    height: 192px;
+    --viz-radius: 96px;
+  }
+}
+
 .viz-segment {
   position: absolute;
   left: 50%;
@@ -111,4 +131,13 @@ function getSegmentStyle(i: number) {
   92.9%{ opacity: 0.3; transform: rotate(var(--segment-deg)) translateY(calc(-1 * var(--viz-radius))) scaleY(0.4); }
   100% { opacity: 0.3; transform: rotate(var(--segment-deg)) translateY(calc(-1 * var(--viz-radius))) scaleY(0.4); }
 }
+
+/* Site-wide reduced-motion convention — applies to every size variant, so
+   the ring holds a static, legible pose instead of pulsing. */
+@media (prefers-reduced-motion: reduce) {
+  .viz-segment {
+    animation: none;
+    opacity: 0.55;
+  }
+}
 </style>

neode-ui/src/components/SendBitcoinModal.vue

@@ -3,14 +3,14 @@
         <!-- ============ SUCCESS PANE — the payment's moment, not a footnote ============ -->
         <template v-if="successInfo">
           <div class="text-center py-4">
-            <div class="send-success-burst mx-auto mb-6">
-              <span class="burst-ring"></span>
-              <span class="burst-ring burst-ring-2"></span>
-              <span class="burst-ring burst-ring-3"></span>
-              <div class="burst-core">
-                <svg class="w-14 h-14 text-green-400 burst-check" fill="none" stroke="currentColor" stroke-width="3" viewBox="0 0 24 24">
-                  <path stroke-linecap="round" stroke-linejoin="round" d="M5 13l4 4L19 7" />
-                </svg>
+            <div class="send-success-badge mx-auto mb-6">
+              <ScreensaverRing size="badge" />
+              <div class="send-success-burst">
+                <div class="burst-core">
+                  <svg class="w-14 h-14 text-green-400 burst-check" fill="none" stroke="currentColor" stroke-width="3" viewBox="0 0 24 24">
+                    <path stroke-linecap="round" stroke-linejoin="round" d="M5 13l4 4L19 7" />
+                  </svg>
+                </div>
               </div>
             </div>
 
@@ -259,6 +259,7 @@ import { ref, computed, watch, nextTick } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { rpcClient } from '@/api/rpc-client'
 import BaseModal from '@/components/BaseModal.vue'
+import ScreensaverRing from '@/components/ScreensaverRing.vue'
 
 const { t } = useI18n()
 
@@ -681,10 +682,27 @@ async function send() {
 </script>
 
 <style scoped>
-/* Success burst — pop-in check inside radiating rings, wallet palette
-   (emerald for the settled payment, one Archipelago-orange ring). */
-.send-success-burst {
+/* Success badge (FED-06) — the branded ScreensaverRing carries the motion,
+   with the emerald pop-in check centred over it. */
+.send-success-badge {
   position: relative;
+  width: 160px;
+  height: 160px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+@media (min-width: 768px) {
+  .send-success-badge {
+    width: 192px;
+    height: 192px;
+  }
+}
+.send-success-burst {
+  position: absolute;
+  top: 50%;
+  left: 50%;
+  transform: translate(-50%, -50%);
   width: 7rem;
   height: 7rem;
 }
@@ -704,20 +722,6 @@ async function send() {
   stroke-dashoffset: 32;
   animation: burst-draw 0.45s ease-out 0.25s forwards;
 }
-.burst-ring {
-  position: absolute;
-  inset: 0;
-  border-radius: 9999px;
-  border: 2px solid rgba(16, 185, 129, 0.45);
-  animation: burst-ripple 1.8s ease-out infinite;
-}
-.burst-ring-2 {
-  animation-delay: 0.45s;
-}
-.burst-ring-3 {
-  animation-delay: 0.9s;
-  border-color: rgba(249, 115, 22, 0.35);
-}
 @keyframes burst-pop {
   from { transform: scale(0.3); opacity: 0; }
   to { transform: scale(1); opacity: 1; }
@@ -725,13 +729,8 @@ async function send() {
 @keyframes burst-draw {
   to { stroke-dashoffset: 0; }
 }
-@keyframes burst-ripple {
-  0% { transform: scale(0.7); opacity: 0.9; }
-  100% { transform: scale(2); opacity: 0; }
-}
 @media (prefers-reduced-motion: reduce) {
-  .burst-core, .burst-check, .burst-ring { animation: none; }
+  .burst-core, .burst-check { animation: none; }
   .burst-check { stroke-dashoffset: 0; }
-  .burst-ring { display: none; }
 }
 </style>

neode-ui/src/components/WalletScanModal.vue

@@ -229,10 +229,13 @@
 
             <!-- ============ SUCCESS PANE ============ -->
             <div v-else key="success" class="text-center py-2">
-              <div class="inline-flex items-center justify-center w-24 h-24 rounded-full mx-auto mb-5 success-ring">
-                <svg class="w-14 h-14 text-green-400" fill="none" stroke="currentColor" stroke-width="3" viewBox="0 0 24 24">
-                  <path stroke-linecap="round" stroke-linejoin="round" d="M5 13l4 4L19 7" />
-                </svg>
+              <div class="scan-success-badge mx-auto mb-5">
+                <ScreensaverRing size="badge" />
+                <div class="scan-success-core">
+                  <svg class="w-14 h-14 text-green-400" fill="none" stroke="currentColor" stroke-width="3" viewBox="0 0 24 24">
+                    <path stroke-linecap="round" stroke-linejoin="round" d="M5 13l4 4L19 7" />
+                  </svg>
+                </div>
               </div>
 
               <div v-if="successAmount > 0" class="text-5xl font-black text-green-400 mb-1">
@@ -268,6 +271,7 @@ import { rpcClient } from '@/api/rpc-client'
 import { useAnimatedQRDecoder } from '@/composables/useAnimatedQRDecoder'
 import { useModalKeyboard } from '@/composables/useModalKeyboard'
 import { useBodyScrollLock } from '@/composables/useBodyScrollLock'
+import ScreensaverRing from '@/components/ScreensaverRing.vue'
 
 type Rail = 'onchain' | 'lightning' | 'cashu' | 'fedimint'
 type Action = 'pay-invoice' | 'send-onchain' | 'redeem-token' | 'fedimint-join'
@@ -858,7 +862,33 @@ onUnmounted(stopScanning)
   box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.35);
 }
 
-.success-ring {
+/* Paid tick (FED-06) — same composition as SendBitcoinModal: the branded
+   ScreensaverRing badge with the emerald checkmark core centred over it. */
+.scan-success-badge {
+  position: relative;
+  width: 160px;
+  height: 160px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+@media (min-width: 768px) {
+  .scan-success-badge {
+    width: 192px;
+    height: 192px;
+  }
+}
+.scan-success-core {
+  position: absolute;
+  top: 50%;
+  left: 50%;
+  transform: translate(-50%, -50%);
+  width: 6rem;
+  height: 6rem;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  border-radius: 9999px;
   background: rgba(16, 185, 129, 0.12);
   box-shadow: 0 0 40px rgba(16, 185, 129, 0.25);
 }

neode-ui/src/components/__tests__/PaidTick.test.ts

@@ -0,0 +1,79 @@
+import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest'
+import { mount, flushPromises } from '@vue/test-utils'
+import i18n from '@/i18n'
+import ScreensaverRing from '../ScreensaverRing.vue'
+import SendBitcoinModal from '../SendBitcoinModal.vue'
+import WalletScanModal from '../WalletScanModal.vue'
+
+// Both modals fetch balances/fees on open. None of that is what this suite is
+// about — stub the transport so mounting is deterministic and offline.
+vi.mock('@/api/rpc-client', () => ({
+  rpcClient: {
+    call: vi.fn().mockResolvedValue({}),
+  },
+}))
+
+// WalletScanModal reaches for camera/QR APIs jsdom does not implement.
+beforeEach(() => {
+  if (!navigator.mediaDevices) {
+    Object.defineProperty(navigator, 'mediaDevices', {
+      value: { getUserMedia: vi.fn().mockRejectedValue(new Error('no camera')), enumerateDevices: vi.fn().mockResolvedValue([]) },
+      configurable: true,
+    })
+  }
+})
+
+// Teleported modal markup outlives the wrapper's root, so clear it between
+// cases — otherwise one modal's nodes answer the next one's queries.
+afterEach(() => {
+  document.body.innerHTML = ''
+})
+
+const mountOpts = { props: { show: true }, global: { plugins: [i18n] } }
+
+describe('paid tick renders the branded ring (FED-06)', () => {
+  it('SendBitcoinModal: payment success shows exactly one badge ring, no ripple burst', async () => {
+    const wrapper = mount(SendBitcoinModal, mountOpts)
+    // Drive the component into its settled-payment state directly — this
+    // suite is about what success *renders*, not how a payment settles.
+    ;(wrapper.vm as unknown as Record<string, unknown>).successInfo = {
+      amount: 12345,
+      methodLabel: 'Sent via Lightning',
+    }
+    await flushPromises()
+
+    const rings = wrapper.findAllComponents(ScreensaverRing)
+    expect(rings).toHaveLength(1)
+    expect(rings[0]?.props('size')).toBe('badge')
+
+    // BaseModal teleports its content to <body>, so the rendered markup lives
+    // outside the wrapper's own root element — assert against the document.
+    // The checkmark core survives the ring swap...
+    expect(document.querySelector('.burst-core')).not.toBeNull()
+    expect(document.querySelector('.burst-check')).not.toBeNull()
+    // ...and the CSS ripple elements it replaced are gone entirely.
+    expect(document.querySelectorAll('.burst-ring')).toHaveLength(0)
+
+    // Decoration only: the amount and SENT copy are untouched.
+    expect(document.body.textContent).toContain('12,345')
+    expect(document.body.textContent).toContain('SENT')
+
+    wrapper.unmount()
+  })
+
+  it('WalletScanModal: success pane shows the same badge ring and keeps its checkmark', async () => {
+    const wrapper = mount(WalletScanModal, mountOpts)
+    ;(wrapper.vm as unknown as Record<string, unknown>).pane = 'success'
+    await flushPromises()
+
+    const rings = wrapper.findAllComponents(ScreensaverRing)
+    expect(rings).toHaveLength(1)
+    expect(rings[0]?.props('size')).toBe('badge')
+    expect(document.querySelector('.scan-success-core')).not.toBeNull()
+    expect(document.querySelector('svg path[d="M5 13l4 4L19 7"]')).not.toBeNull()
+    // The plain fixed-size circle the ring replaced is gone.
+    expect(document.querySelectorAll('.success-ring')).toHaveLength(0)
+
+    wrapper.unmount()
+  })
+})

neode-ui/src/components/__tests__/ScreensaverRing.test.ts

@@ -0,0 +1,36 @@
+import { describe, it, expect } from 'vitest'
+import { mount } from '@vue/test-utils'
+import ScreensaverRing from '../ScreensaverRing.vue'
+
+// The ring is shared by the screensaver (default), SystemDangerZone (compact)
+// and — as of FED-06 — the payment-success tick (badge). These assertions pin
+// the variant mapping so adding a size can never silently re-point an existing
+// call site at different geometry.
+describe('ScreensaverRing', () => {
+  it('maps each size variant to its own ring class', () => {
+    expect(mount(ScreensaverRing).classes()).toContain('viz-ring-default')
+    expect(mount(ScreensaverRing, { props: { size: 'compact' } }).classes()).toContain(
+      'viz-ring-compact',
+    )
+    expect(mount(ScreensaverRing, { props: { size: 'badge' } }).classes()).toContain(
+      'viz-ring-badge',
+    )
+  })
+
+  it('keeps the existing variants off the badge class', () => {
+    expect(mount(ScreensaverRing).classes()).not.toContain('viz-ring-badge')
+    expect(mount(ScreensaverRing, { props: { size: 'compact' } }).classes()).not.toContain(
+      'viz-ring-badge',
+    )
+  })
+
+  it('renders one segment per segmentCount, defaulting to 48', () => {
+    expect(mount(ScreensaverRing).findAll('.viz-segment')).toHaveLength(48)
+    expect(
+      mount(ScreensaverRing, { props: { segmentCount: 12 } }).findAll('.viz-segment'),
+    ).toHaveLength(12)
+    expect(
+      mount(ScreensaverRing, { props: { size: 'badge', segmentCount: 24 } }).findAll('.viz-segment'),
+    ).toHaveLength(24)
+  })
+})