style(danisman): sohbet yüzeyleri bg-white → bg-card (main'deki commit'lenmemiş koyu tema düzeltmesi dala taşındı)

main çalışma ağacındaki aynı 6 satırlık değişiklik fast-forward merge'ü
engelliyordu; içerik birebir buraya alındı.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

src/features/rapor/components/sohbet-client.tsx

@@ -179,7 +179,7 @@ export function DanismanBaslik() {
 export function DanismanAvatar({ canli = false }: { canli?: boolean }) {
   return (
     <span
-      className="mt-0.5 flex size-8 shrink-0 items-center justify-center overflow-hidden rounded-full border border-slate-200 bg-white"
+      className="mt-0.5 flex size-8 shrink-0 items-center justify-center overflow-hidden rounded-full border border-slate-200 bg-card"
       aria-hidden
     >
       {canli ? (
@@ -455,7 +455,7 @@ export function SohbetClient({
     <section
       aria-label="Danışman sohbeti"
       className={cn(
-        "flex flex-col overflow-hidden rounded-2xl border border-slate-200 bg-white",
+        "flex flex-col overflow-hidden rounded-2xl border border-slate-200 bg-card",
         // 18rem: sticky ofset (top-28 = 7rem) + geniş alt boşluk — eski 24rem
         // sohbeti sıkıştırıyordu, 10-14rem denemeleri fazla yüksek geldi;
         // panel görünür ama sayfaya baskın değil.
@@ -474,7 +474,7 @@ export function SohbetClient({
                   <button
                     type="button"
                     aria-label="Danışmanın bildikleri"
-                    className="inline-flex size-7 cursor-help items-center justify-center rounded-full border border-slate-200 bg-white text-slate-600 transition-colors hover:bg-slate-100 hover:text-slate-800"
+                    className="inline-flex size-7 cursor-help items-center justify-center rounded-full border border-slate-200 bg-card text-slate-600 transition-colors hover:bg-slate-100 hover:text-slate-800"
                   >
                     <Info className="size-3.5" aria-hidden />
                   </button>
@@ -505,7 +505,7 @@ export function SohbetClient({
               onClick={() => setTemizleAcik(true)}
               disabled={bekliyor || temizleniyor}
               aria-label="Sohbeti temizle"
-              className="inline-flex size-7 cursor-pointer items-center justify-center rounded-full border border-slate-200 bg-white text-slate-600 transition-[background-color,transform] duration-150 hover:bg-slate-100 hover:text-slate-800 active:scale-[0.96] disabled:cursor-not-allowed disabled:opacity-50"
+              className="inline-flex size-7 cursor-pointer items-center justify-center rounded-full border border-slate-200 bg-card text-slate-600 transition-[background-color,transform] duration-150 hover:bg-slate-100 hover:text-slate-800 active:scale-[0.96] disabled:cursor-not-allowed disabled:opacity-50"
               title="Sohbet geçmişini sil"
             >
               <Trash2 className="size-3.5" aria-hidden />
@@ -535,7 +535,7 @@ export function SohbetClient({
             // Etkileşimli çip (§4.17 kalıbı, kompakt h-8): rozet değil.
             <span
               key={s.alan}
-              className="inline-flex h-8 items-center gap-1 rounded-full border border-slate-200 bg-white pr-1 pl-3 text-xs font-semibold text-slate-700"
+              className="inline-flex h-8 items-center gap-1 rounded-full border border-slate-200 bg-card pr-1 pl-3 text-xs font-semibold text-slate-700"
             >
               {s.metin}
               <button
@@ -736,7 +736,7 @@ export function SohbetClient({
             <ChatContainerScrollAnchor />
           </ChatContainerContent>
           <div className="absolute bottom-4 right-4">
-            <ScrollButton className="cursor-pointer bg-white shadow-md" />
+            <ScrollButton className="cursor-pointer bg-card shadow-md" />
           </div>
         </ChatContainerRoot>
       </div>