feat(setup): Zeus lightning journey — fund-wallet step, IBD timer + finish-setup toast, channel suggestions

Every Lightning setup (Open a Shop, Accept Payments, Run a Lightning Node)
gains a guided path to a working channel:

- New "Fund Your Bitcoin Wallet" step, gated on the blockchain finishing
  its initial sync: while syncing it shows a live progress bar with a
  counting-down time-remaining estimate; once synced it shows the on-chain
  balance and a "Fund Wallet" button that opens the receive modal with a
  fresh address, QR, and the Zeus channel limits (min 150,000 / max
  1,500,000 sats) noted.
- When the sync finishes while a Lightning setup is mid-flight, a toast
  pops with a "Finish setup" link straight back to the wizard (toasts now
  support action links). If several setups are in flight, one is chosen —
  the shared steps complete the lightning part of any of them.
- Channel steps are Zeus-branded (logo + copy) and land on the Lightning
  Channels screen, which now carries an "Open a channel with Zeus" card
  that prefills the open-channel modal with the Olympus peer URI, 150k
  sats, and private-channel checked. "Get Zeus" links to zeusln.com.
- Setup completion now actually requires walking the manual steps (fund,
  open channel, configure) — previously any step whose app was installed
  was silently auto-ticked and running apps marked the whole goal done.
- Completion CTAs now go to the app you just set up ("Go to my shop
  (BTCPay)" etc.) instead of the generic services list; iframe apps open
  in the on-top app overlay.
- On-chain send modal gains a "Send all funds" sweep toggle, backed by
  LND's send_all on the backend (amount no longer required when sweeping).
- Demo/mock: bitcoin.getinfo now returns the block_height/sync_progress
  contract the UI reads and simulates a ~90s IBD ramp per visitor so the
  timer, toast, and fund flow can all be demoed live; channel list data
  fixed (status/channel_point/liquidity totals — the panel previously
  crashed on the missing status field); sendcoins supports send_all.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

neode-ui/src/composables/useIbdFinishWatcher.ts

@@ -0,0 +1,90 @@
+import { computed, watch, watchEffect, onUnmounted } from 'vue'
+import { useRouter } from 'vue-router'
+import { GOALS } from '@/data/goals'
+import { useGoalStore } from '@/stores/goals'
+import { useToast } from '@/composables/useToast'
+import {
+  acquireBitcoinSync,
+  bitcoinSynced,
+  bitcoinSyncLoaded,
+} from '@/composables/useBitcoinSync'
+
+// Session-level guard: the "finish setup" toast fires at most once per page load.
+let firedThisSession = false
+
+/**
+ * Watches for Bitcoin IBD completing while a Lightning setup goal is mid-flight
+ * and pops a "Finish setup" toast linking back to that goal's wizard (which is
+ * sitting on the fund-wallet / open-channel steps). Mount once in the
+ * dashboard layout.
+ */
+export function useIbdFinishWatcher() {
+  const goalStore = useGoalStore()
+  const router = useRouter()
+  const toast = useToast()
+
+  // A goal qualifies while it's in progress and its manual fund/channel steps
+  // aren't done yet. If several qualify, the first wins — finishing the shared
+  // fund + channel steps completes the lightning part of any of them.
+  const pendingLightningGoalId = computed<string | null>(() => {
+    if (firedThisSession) return null
+    for (const goal of GOALS) {
+      const hasFundStep = goal.steps.some((s) => s.action === 'fund')
+      if (!hasFundStep) continue
+      if (goalStore.getGoalStatus(goal.id) !== 'in-progress') continue
+      const done = goalStore.progress[goal.id]?.completedSteps ?? []
+      const manualPending = goal.steps.some(
+        (s) => s.action !== 'install' && !done.includes(s.id),
+      )
+      if (manualPending) return goal.id
+    }
+    return null
+  })
+
+  // Only poll the chain while there's actually a goal waiting on it.
+  let release: (() => void) | null = null
+  watchEffect(() => {
+    const shouldWatch = pendingLightningGoalId.value !== null && !bitcoinSynced.value
+    if (shouldWatch && !release) {
+      release = acquireBitcoinSync()
+    } else if (!shouldWatch && release) {
+      // Goal finished/reset or the chain synced — stop polling.
+      release()
+      release = null
+    }
+  })
+
+  // Fire only on a REAL transition: we must have observed the chain unsynced
+  // at least once this session, so a node that's already synced at page load
+  // doesn't toast.
+  let sawUnsynced = false
+  watch([bitcoinSynced, bitcoinSyncLoaded], ([synced, loaded]) => {
+    if (!loaded) return
+    if (!synced) {
+      sawUnsynced = true
+      return
+    }
+    if (!sawUnsynced || firedThisSession) return
+    const goalId = pendingLightningGoalId.value
+    if (!goalId) return
+    firedThisSession = true
+    toast.action(
+      'Bitcoin is fully synced — you can now fund your wallet and open your Lightning channel.',
+      {
+        label: 'Finish setup',
+        onClick: () => { router.push(`/dashboard/goals/${goalId}`) },
+      },
+    )
+    if (release) {
+      release()
+      release = null
+    }
+  })
+
+  onUnmounted(() => {
+    if (release) {
+      release()
+      release = null
+    }
+  })
+}