feat(web): link to sofa.watch from the landing page

Add a quiet "Powered by Sofa" footer to the logged-out splash screen,
linking to sofa.watch. The footer sits in normal flow below the hero so
it can't overlap the buttons on short screens, and clears the bottom
safe-area inset.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/web/src/components/landing-page.tsx

@@ -91,7 +91,7 @@ export function LandingPage({
         }}
       />
 
-      <main className="relative z-10 flex flex-col items-center gap-10 px-6 text-center">
+      <main className="relative z-10 flex flex-1 flex-col items-center justify-center gap-10 px-6 text-center">
         <div className="space-y-4">
           <motion.p
             className="text-primary text-sm font-medium tracking-[0.3em] uppercase"
@@ -184,6 +184,28 @@ export function LandingPage({
 
       {/* Bottom fade */}
       <div className="from-background pointer-events-none absolute right-0 bottom-0 left-0 h-32 bg-gradient-to-t to-transparent" />
+
+      <motion.footer
+        className="relative z-10 pt-6 pb-[max(1.5rem,env(safe-area-inset-bottom))]"
+        initial={{ opacity: 0 }}
+        animate={{ opacity: 1 }}
+        transition={{ duration: 0.8, delay: 0.6 }}
+      >
+        <a
+          href="https://sofa.watch"
+          target="_blank"
+          rel="noopener noreferrer"
+          className="group text-muted-foreground/70 inline-flex items-center gap-1.5 text-xs"
+        >
+          <Trans>
+            Powered by{" "}
+            <span className="text-foreground/80 group-hover:text-primary inline-flex items-center gap-1 transition-colors">
+              <SofaLogo className="size-3.5" />
+              <span className="font-display text-sm leading-none">Sofa</span>
+            </span>
+          </Trans>
+        </a>
+      </motion.footer>
     </div>
   );
 }

packages/i18n/src/po/ar.po

@@ -2542,6 +2542,10 @@ msgstr "الشعبية"
 msgid "Portuguese"
 msgstr "البرتغالية"
 
+#: apps/web/src/components/landing-page.tsx
+msgid "Powered by <0><1/><2>Sofa</2></0>"
+msgstr ""
+
 #: apps/web/src/components/explore/discover-section.tsx
 msgid "Pre-1970"
 msgstr "قبل 1970"

packages/i18n/src/po/de.po

@@ -2542,6 +2542,10 @@ msgstr "Beliebtheit"
 msgid "Portuguese"
 msgstr "Portugiesisch"
 
+#: apps/web/src/components/landing-page.tsx
+msgid "Powered by <0><1/><2>Sofa</2></0>"
+msgstr ""
+
 #: apps/web/src/components/explore/discover-section.tsx
 msgid "Pre-1970"
 msgstr "Vor 1970"

packages/i18n/src/po/en.po

@@ -2542,6 +2542,10 @@ msgstr "Popularity"
 msgid "Portuguese"
 msgstr "Portuguese"
 
+#: apps/web/src/components/landing-page.tsx
+msgid "Powered by <0><1/><2>Sofa</2></0>"
+msgstr "Powered by <0><1/><2>Sofa</2></0>"
+
 #: apps/web/src/components/explore/discover-section.tsx
 msgid "Pre-1970"
 msgstr "Pre-1970"

packages/i18n/src/po/es.po

@@ -2542,6 +2542,10 @@ msgstr "Popularidad"
 msgid "Portuguese"
 msgstr "Portugués"
 
+#: apps/web/src/components/landing-page.tsx
+msgid "Powered by <0><1/><2>Sofa</2></0>"
+msgstr ""
+
 #: apps/web/src/components/explore/discover-section.tsx
 msgid "Pre-1970"
 msgstr "Anterior a 1970"

packages/i18n/src/po/fr.po

@@ -2542,6 +2542,10 @@ msgstr "Popularité"
 msgid "Portuguese"
 msgstr "Portugais"
 
+#: apps/web/src/components/landing-page.tsx
+msgid "Powered by <0><1/><2>Sofa</2></0>"
+msgstr ""
+
 #: apps/web/src/components/explore/discover-section.tsx
 msgid "Pre-1970"
 msgstr "Avant 1970"

packages/i18n/src/po/he.po

@@ -2542,6 +2542,10 @@ msgstr "פופולריות"
 msgid "Portuguese"
 msgstr "פורטוגזית"
 
+#: apps/web/src/components/landing-page.tsx
+msgid "Powered by <0><1/><2>Sofa</2></0>"
+msgstr ""
+
 #: apps/web/src/components/explore/discover-section.tsx
 msgid "Pre-1970"
 msgstr "לפני 1970"

packages/i18n/src/po/it.po

@@ -2542,6 +2542,10 @@ msgstr "Popolarità"
 msgid "Portuguese"
 msgstr "Portoghese"
 
+#: apps/web/src/components/landing-page.tsx
+msgid "Powered by <0><1/><2>Sofa</2></0>"
+msgstr ""
+
 #: apps/web/src/components/explore/discover-section.tsx
 msgid "Pre-1970"
 msgstr "Prima del 1970"

packages/i18n/src/po/ja.po

@@ -2542,6 +2542,10 @@ msgstr "人気"
 msgid "Portuguese"
 msgstr "ポルトガル語"
 
+#: apps/web/src/components/landing-page.tsx
+msgid "Powered by <0><1/><2>Sofa</2></0>"
+msgstr ""
+
 #: apps/web/src/components/explore/discover-section.tsx
 msgid "Pre-1970"
 msgstr "1970年以前"

packages/i18n/src/po/ko.po

@@ -2542,6 +2542,10 @@ msgstr "인기도"
 msgid "Portuguese"
 msgstr "포르투갈어"
 
+#: apps/web/src/components/landing-page.tsx
+msgid "Powered by <0><1/><2>Sofa</2></0>"
+msgstr ""
+
 #: apps/web/src/components/explore/discover-section.tsx
 msgid "Pre-1970"
 msgstr "1970년 이전"

packages/i18n/src/po/nl.po

@@ -2542,6 +2542,10 @@ msgstr "Populariteit"
 msgid "Portuguese"
 msgstr "Portugees"
 
+#: apps/web/src/components/landing-page.tsx
+msgid "Powered by <0><1/><2>Sofa</2></0>"
+msgstr ""
+
 #: apps/web/src/components/explore/discover-section.tsx
 msgid "Pre-1970"
 msgstr "Vóór 1970"

packages/i18n/src/po/pt.po

@@ -2542,6 +2542,10 @@ msgstr "Popularidade"
 msgid "Portuguese"
 msgstr "Português"
 
+#: apps/web/src/components/landing-page.tsx
+msgid "Powered by <0><1/><2>Sofa</2></0>"
+msgstr ""
+
 #: apps/web/src/components/explore/discover-section.tsx
 msgid "Pre-1970"
 msgstr "Antes de 1970"

packages/i18n/src/po/zh.po

@@ -2542,6 +2542,10 @@ msgstr "人气"
 msgid "Portuguese"
 msgstr "葡萄牙语"
 
+#: apps/web/src/components/landing-page.tsx
+msgid "Powered by <0><1/><2>Sofa</2></0>"
+msgstr ""
+
 #: apps/web/src/components/explore/discover-section.tsx
 msgid "Pre-1970"
 msgstr "1970 年前"