Ark server is a setting again; an address on another server falls back to Lightning.

Settings → Advanced → Ark server: coinos, Second (ark.second.tech) or a
custom server, per network — the stored choice is honoured on mainnet
again. Ark state is kept per server, so switching hides but never loses
coins; the card says what the current server holds and asks before letting
go. After a switch the reusable address, the nostr advert and the payment
name's ark= instruction follow the new server.

Sends between servers can't be arkoor, so an Ark address that names a
different server (its first bytes hash the server key) is treated as no
Ark address at all in the pay ladder — a coinos name or npub then goes
over Lightning by itself — and a pasted one is refused with the reason.

Co-Authored-By: Claude Fable 5.1 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Tmfg8k5f3TbNJS34qiqHAp

1 files changed, 9 insertions, 0 deletions

diff --git a/src/i18n.js b/src/i18n.js
index 903da37..6b89a9e 100644
--- a/src/i18n.js
+++ b/src/i18n.js
@@ -829,6 +829,15 @@ const STR = {
     arkOpsLnPay: '{n} Lightning payment(s) in flight',
     arkOpsLnRecv: '{n} Lightning invoice(s) outstanding',
     arkLnPayVia: 'Instant, from your Spending balance',
+    arkServerTitle: 'Ark server',
+    arkServerDesc: 'Spending runs on an Ark server. coinos runs one; Second runs another; or point at your own. Coins are held per server — switch back any time to reach what a server holds.',
+    arkServerCustomUrl: 'Ark server URL (https://…)',
+    arkServerCustomEsplora: 'Esplora API URL for that server',
+    arkServerCustomNeeded: 'Enter both the Ark server and its Esplora URL first',
+    arkServerSwitchWarn: '{amount} sats are held with the current server. They stay there — switch back to reach them — but they can’t be spent from the new one. To move them, send or exit them first.',
+    arkServerSwitchGo: 'Switch server',
+    arkServerSwitched: 'Ark server switched',
+    arkForeignServer: 'That Ark address belongs to a different Ark server, so it can’t be paid from here directly. Ask for a Lightning invoice, or pay their coinos name or npub — those fall back to Lightning by themselves.',
     arkLnFromSavingsTitle: 'Lightning pays from Spending',
     arkLnFromSavingsBody: 'Lightning payments leave your Spending balance, not Savings. Spending holds {have}.',
     arkLnFromSavingsShort: 'Spending can’t cover this one. Move funds over from Savings first — that takes an on-chain confirmation, so ask for a fresh invoice afterwards.',