fix(ios): suppress native text-selection menu over annotation tools (#4231)

On iOS the system text-selection menu (Copy / Look Up / Translate /
Share) appeared on top of Readest's annotation toolbar. The previous
workaround removed and re-added the selection range on a timer
(makeSelectionOnIOS) to shake the menu off — flaky on iOS 16 and on the
first long-press of a word.

Suppress the menu natively instead, in the native-bridge iOS plugin.
ContextMenuSuppressor swizzles WKContentView so non-editable web
selections produce an empty menu that is never presented:

  * editMenuInteraction(_:menuForConfiguration:suggestedActions:) — the
    UIEditMenuInteraction delegate WebKit uses to build the menu on
    iOS 16+ (the menu users actually see on modern iOS).
  * presentEditMenu(with:) — a present-time backstop.
  * canPerformAction(_:withSender:) — the legacy UIMenuController gate
    for iOS 15 and earlier.

Editable HTML fields keep their native menu (Paste / Select All still
work) via a cut:/paste: probe. Text selection and drag handles are
unaffected, so the annotation toolbar still triggers.

With suppression handled natively, makeSelectionOnIOS is removed and iOS
selections take the same path as desktop.

Closes #4218

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/readest-app/src/app/reader/hooks/useTextSelector.ts

@@ -68,27 +68,6 @@ export const useTextSelector = (
       index,
     });
   };
-  // FIXME: extremely hacky way to dismiss system selection tools on iOS
-  const makeSelectionOnIOS = async (sel: Selection, index: number) => {
-    isTextSelected.current = true;
-    const range = sel.getRangeAt(0);
-    setTimeout(() => {
-      sel.removeAllRanges();
-      setTimeout(async () => {
-        if (!isTextSelected.current) return;
-        sel.addRange(range);
-        const progress = getProgress(bookKey);
-        setSelection({
-          key: bookKey,
-          text: await getAnnotationText(range),
-          cfi: view?.getCFI(index, range),
-          page: bookData?.isFixedLayout ? index + 1 : progress?.page || 0,
-          range,
-          index,
-        });
-      }, 30);
-    }, 30);
-  };
 
   const startInstantAnnotating = (ev: PointerEvent) => {
     isInstantAnnotating.current = true;
@@ -175,11 +154,11 @@ export const useTextSelector = (
     const sel = doc.getSelection() as Selection;
     if (isValidSelection(sel)) {
       const isPointerInside = ev && isPointerInsideSelection(sel, ev);
-      const isIOS = osPlatform === 'ios' || appService?.isIOSApp;
 
-      if (isPointerInside && isIOS) {
-        makeSelectionOnIOS(sel, index);
-      } else if (isPointerInside) {
+      // iOS no longer needs a special path: the native plugin
+      // (ContextMenuSuppressor) suppresses the system selection menu, so
+      // iOS selections go through the same path as desktop.
+      if (isPointerInside) {
         isUpToPopup.current = true;
         makeSelection(sel, index, true);
       } else if (appService?.isAndroidApp) {