feat(desktop): embeddable Gateway settings panel

Add an `embedded` flag to GatewaySettings (and a `bare` variant to
SettingsContent) that drops the page title/intro, Diagnostics row,
"Save for next restart", and the page gutters — so the same panel can be reused
inside a tighter surface without a second connection form to maintain. No change
to the standalone Settings → Gateway page (defaults off).

apps/desktop/src/app/settings/gateway-settings.tsx

@@ -110,7 +110,11 @@ function ScopeChip({ active, label, onSelect }: { active: boolean; label: string
   )
 }
 
-export function GatewaySettings() {
+// `embedded` trims the page chrome for reuse inside the boot-failure recovery
+// card: the outer title/intro, the "Save for next restart" action, and the
+// Diagnostics row are redundant there (the card owns its header + a single
+// reconnect action), so only the connection controls render.
+export function GatewaySettings({ embedded = false }: { embedded?: boolean } = {}) {
   const { t } = useI18n()
   const g = t.settings.gateway
   const [loading, setLoading] = useState(true)
@@ -707,17 +711,19 @@ export function GatewaySettings() {
   }
 
   return (
-    <SettingsContent>
-      <div className="mb-5">
-        <div className="flex items-center gap-2 text-[length:var(--conversation-text-font-size)] font-medium">
-          <Globe className="size-4 text-muted-foreground" />
-          {g.title}
-          {state.envOverride ? <Pill tone="primary">{g.envOverride}</Pill> : null}
+    <SettingsContent bare={embedded}>
+      {embedded ? null : (
+        <div className="mb-5">
+          <div className="flex items-center gap-2 text-[length:var(--conversation-text-font-size)] font-medium">
+            <Globe className="size-4 text-muted-foreground" />
+            {g.title}
+            {state.envOverride ? <Pill tone="primary">{g.envOverride}</Pill> : null}
+          </div>
+          <p className="mt-2 max-w-2xl text-[length:var(--conversation-caption-font-size)] leading-(--conversation-caption-line-height) text-(--ui-text-tertiary)">
+            {g.intro}
+          </p>
         </div>
-        <p className="mt-2 max-w-2xl text-[length:var(--conversation-caption-font-size)] leading-(--conversation-caption-line-height) text-(--ui-text-tertiary)">
-          {g.intro}
-        </p>
-      </div>
+      )}
 
       {namedProfiles.length > 0 ? (
         <div className="mb-5 grid gap-2">
@@ -1037,14 +1043,16 @@ export function GatewaySettings() {
               {g.testRemote}
             </Button>
           ) : null}
-          <Button
-            disabled={state.envOverride || saving}
-            onClick={() => void save(false)}
-            size="sm"
-            variant="textStrong"
-          >
-            {g.saveForRestart}
-          </Button>
+          {embedded ? null : (
+            <Button
+              disabled={state.envOverride || saving}
+              onClick={() => void save(false)}
+              size="sm"
+              variant="textStrong"
+            >
+              {g.saveForRestart}
+            </Button>
+          )}
           <Button disabled={state.envOverride || saving} onClick={() => void save(true)} size="sm">
             {saving ? <Loader2 className="animate-spin" /> : null}
             {g.saveAndReconnect}
@@ -1052,18 +1060,20 @@ export function GatewaySettings() {
         </div>
       ) : null}
 
-      <div className="mt-6 grid gap-1">
-        <ListRow
-          action={
-            <Button onClick={() => void window.hermesDesktop?.revealLogs()} size="sm" variant="textStrong">
-              <FileText />
-              {g.openLogs}
-            </Button>
-          }
-          description={g.diagnosticsDesc}
-          title={g.diagnostics}
-        />
-      </div>
+      {embedded ? null : (
+        <div className="mt-6 grid gap-1">
+          <ListRow
+            action={
+              <Button onClick={() => void window.hermesDesktop?.revealLogs()} size="sm" variant="textStrong">
+                <FileText />
+                {g.openLogs}
+              </Button>
+            }
+            description={g.diagnosticsDesc}
+            title={g.diagnostics}
+          />
+        </div>
+      )}
     </SettingsContent>
   )
 }

apps/desktop/src/app/settings/primitives.tsx

@@ -8,10 +8,14 @@ import { cn } from '@/lib/utils'
 
 import { PAGE_INSET_X } from '../layout-constants'
 
-export function SettingsContent({ children }: { children: ReactNode }) {
+// `bare` drops the page gutters + tall bottom pad for embedding in a tighter
+// surface (e.g. the boot-failure recovery card owns its own padding).
+export function SettingsContent({ children, bare = false }: { children: ReactNode; bare?: boolean }) {
   return (
     <section className="min-h-0 overflow-hidden">
-      <div className={cn('h-full min-h-0 overflow-y-auto pb-20', PAGE_INSET_X)}>{children}</div>
+      <div className={cn('h-full min-h-0 overflow-y-auto', bare ? 'px-5 pb-6' : cn('pb-20', PAGE_INSET_X))}>
+        {children}
+      </div>
     </section>
   )
 }