fix: respect RTL direction for reader arrow buttons and swipe navigation

Arrow buttons now swap next/previous in RTL mode. Swipe navigation
receives isRTL from parent state instead of creating its own independent
copy, so toggling direction takes effect immediately without reload.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/components/reader/PhotoswipeReader.tsx

@@ -76,6 +76,7 @@ export function PhotoswipeReader({ book, pages, onClose, nextBook }: BookReaderP
     onPreviousPage: handlePreviousPage,
     onNextPage: handleNextPage,
     pswpRef,
+    isRTL,
   });
 
   // Activer le zoom dans le reader en enlevant la classe no-pinch-zoom

src/components/reader/components/ControlButtons.tsx

@@ -173,7 +173,7 @@ export const ControlButtons = ({
           icon={ChevronLeft}
           onClick={(e) => {
             e.stopPropagation();
-            onPreviousPage();
+            direction === "rtl" ? onNextPage() : onPreviousPage();
           }}
           tooltip={t("reader.controls.previousPage")}
           iconClassName="h-8 w-8"
@@ -193,7 +193,7 @@ export const ControlButtons = ({
           icon={ChevronRight}
           onClick={(e) => {
             e.stopPropagation();
-            onNextPage();
+            direction === "rtl" ? onPreviousPage() : onNextPage();
           }}
           tooltip={t("reader.controls.nextPage")}
           iconClassName="h-8 w-8"

src/components/reader/hooks/useTouchNavigation.ts

@@ -1,18 +1,18 @@
 import { useCallback, useRef, useEffect } from "react";
-import { useReadingDirection } from "./useReadingDirection";
 
 interface UseTouchNavigationProps {
   onPreviousPage: () => void;
   onNextPage: () => void;
   pswpRef: React.MutableRefObject<unknown>;
+  isRTL: boolean;
 }
 
 export function useTouchNavigation({
   onPreviousPage,
   onNextPage,
   pswpRef,
+  isRTL,
 }: UseTouchNavigationProps) {
-  const { isRTL } = useReadingDirection();
   const touchStartXRef = useRef<number | null>(null);
   const touchStartYRef = useRef<number | null>(null);
   const isPinchingRef = useRef(false);