Chat behind a header button, full-screen; move-panel polish

Chat leaves the tab bar (which returns to its four evenly spaced tabs)
for an icon button in the header next to the wallet selector. It now
takes over the whole screen — no balance card, no tabs — with a back
button on the chat home view, and the logo still leads back to the
wallet. The generic tabs/tabContent seams this reverts to unused are
removed again.

Move panel: the direction toggle stretches across the card, and the
"X sats in Spending" line is gone — the balance sits right above it.

Co-Authored-By: Claude Fable 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Wvj4aoeMZwA7VUGdJP9Swi

2 files changed, 22 insertions, 7 deletions

diff --git a/src/features/ark.js b/src/features/ark.js
index d98e92e..4d9242c 100644
--- a/src/features/ark.js
+++ b/src/features/ark.js
@@ -1372,7 +1372,7 @@ export function arkFeature(ctx) {
               h('span', { class: 'spinner sm' }), h('span', { class: 'small muted' }, t('arkConnecting'))))
         : h('div', { class: 'col', style: 'gap:8px' },
             h('p', { class: 'small muted', style: 'margin:0' }, t('moveToSavingDesc')),
-            h('div', { class: 'small faint' }, t('moveAvailable', { n: fmtAmount(b ? b.spendableSat : 0) + ' ' + unitLabel() })),
+            // no "X sats in Spending" line — the balance sits right above on this card
             h('button', {
               class: 'btn-block', disabled: !b || !b.spendableSat,
               onClick: () => { ui.arkMoveOpen = false; ui.arkExitPage = true; ui.arkError = ''; render(); },
diff --git a/src/features/messages.js b/src/features/messages.js
index 2484b46..25e6f7a 100644
--- a/src/features/messages.js
+++ b/src/features/messages.js
@@ -40,6 +40,7 @@ const COMMUNITY = {
 };
 
 const EPOCH = 0;
+const CHAT_ICON = '<svg viewBox="0 0 24 24" width="17" height="17" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" style="display:block"><path d="M21 11.5a8.38 8.38 0 0 1-8.5 8.5 8.5 8.5 0 0 1-3.8-.9L3 21l1.9-5.7a8.38 8.38 0 0 1-.9-3.8 8.5 8.5 0 0 1 8.5-8.5 8.38 8.38 0 0 1 8.5 8.5z"/></svg>';
 const DM_RELAYS = ['wss://relay.coinos.io', 'wss://nos.lol'];
 const APP_BASE = 'https://v3.coinos.io';
 const CACHE_MAX = 50; // messages kept per channel / per DM thread in feature state
@@ -104,7 +105,7 @@ export function messagesFeature(ctx) {
     if (repaintTimer) return;
     repaintTimer = setTimeout(() => {
       repaintTimer = null;
-      if (ui.screen === 'wallet' && ui.tab === 'messages') render();
+      if (ui.screen === 'wallet' && ui.chatOpen) render();
     }, 80);
   };
 
@@ -785,6 +786,11 @@ export function messagesFeature(ctx) {
 
     const kids = [];
 
+    // Chat takes the whole screen, so home carries the way back to the wallet.
+    kids.push(h('div', { class: 'row gap6', style: 'align-items:center' },
+      backBtn(() => { ui.chatOpen = false; render(); }),
+      h('h3', { style: 'margin:0' }, t('tabMessages'))));
+
     if (pendingLink) kids.push(linkInviteCard());
     for (const [rid, inv] of pendingDirect) kids.push(directInviteCard(rid, inv));
 
@@ -1052,15 +1058,24 @@ export function messagesFeature(ctx) {
 
   return {
     id: 'messages',
-    tabs: () => [['messages', t('tabMessages')]],
-    tabContent(tab) {
-      if (tab !== 'messages') return null;
-      return messagesTab();
+    // Chat lives behind a header button and takes over the whole screen —
+    // no balance card, no tabs; each view carries its own way back.
+    headerButtons() {
+      return [h('button', {
+        class: 'btn-sm', title: t('tabMessages'),
+        onClick: () => { ui.chatOpen = true; render(); },
+      }, h('span', { html: CHAT_ICON }))];
+    },
+    screenView() {
+      if (!ui.chatOpen || ui.screen !== 'wallet') return null;
+      return h('div', { class: 'col', style: 'gap:16px' },
+        ctx.brandHeader(false),
+        messagesTab());
     },
     init() {
       if (urlInvite && !pendingLink) {
         loadLinkInvite(urlInvite);
-        setTimeout(() => { ui.tab = 'messages'; ui.msgView = 'home'; render(); }, 0);
+        setTimeout(() => { ui.chatOpen = true; ui.msgView = 'home'; render(); }, 0);
       }
       startDMs();
       syncLists().catch(() => {});