feat(ui): единый акцентный цвет #EA580C, логотип в цветах гусей

- Замена всех акцентных цветов (sky, cyan, #24A0ED) на #EA580C
- Логотип GooSeek на главной — палитра гусей (серый + оранжевый клюв)
- Обновлены: кнопки, ссылки, иконки, hover-состояния, переключатели

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/frontend/src/app/discover/page.tsx

@@ -157,7 +157,7 @@ const Page = () => {
                   className={cn(
                     'border-[0.1px] rounded-full text-sm px-3 py-1 text-nowrap transition duration-200 cursor-pointer',
                     activeTopic === t.key
-                      ? 'text-cyan-700 dark:text-cyan-300 bg-cyan-300/20 border-cyan-700/60 dar:bg-cyan-300/30 dark:border-cyan-300/40'
+                      ? 'text-[#EA580C] bg-[#EA580C]/20 border-[#EA580C]/60 dark:bg-[#EA580C]/30 dark:border-[#EA580C]/40'
                       : 'border-black/30 dark:border-white/30 text-black/70 dark:text-white/70 hover:text-black dark:hover:text-white hover:border-black/40 dark:hover:border-white/40 hover:bg-black/5 dark:hover:bg-white/5',
                   )}
                   onClick={() => setActiveTopic(t.key)}
@@ -192,8 +192,8 @@ const Page = () => {
           <div className="flex flex-col items-center justify-center min-h-[50vh] px-4" />
         ) : setupRequired ? (
           <div className="flex flex-col items-center justify-center min-h-[50vh] gap-4 px-4 text-center">
-            <div className="rounded-full p-4 bg-cyan-300/10 dark:bg-cyan-300/5">
-              <Settings size={48} className="text-cyan-600 dark:text-cyan-400" />
+            <div className="rounded-full p-4 bg-[#EA580C]/10 dark:bg-[#EA580C]/5">
+              <Settings size={48} className="text-[#EA580C]" />
             </div>
             <div>
               <p className="text-lg font-medium text-black dark:text-white">

apps/frontend/src/app/library/page.tsx

@@ -93,7 +93,7 @@ const Page = () => {
             No chats found.
           </p>
           <p className="mt-1 text-black/70 dark:text-white/70 text-sm">
-            <Link href="/" className="text-sky-400">
+            <Link href="/" className="text-[#EA580C]">
               Start a new chat
             </Link>{' '}
             to see it listed here.
@@ -128,7 +128,7 @@ const Page = () => {
                   <div className="flex items-start justify-between gap-3">
                     <Link
                       href={`/c/${chat.id}`}
-                      className="flex-1 text-black dark:text-white text-base lg:text-lg font-medium leading-snug line-clamp-2 group-hover:text-[#24A0ED] transition duration-200"
+                      className="flex-1 text-black dark:text-white text-base lg:text-lg font-medium leading-snug line-clamp-2 group-hover:text-[#EA580C] transition duration-200"
                       title={chat.title}
                     >
                       {chat.title}