fix(ios): re-apply scroll edge interactions when header/footer size changes

When header or footer is initially empty and content loads later, edge
interactions were never re-established after the initial setupScrollable call.

Author: lodev09

ios/TrueSheetContainerView.mm

@@ -43,7 +43,7 @@ - (instancetype)init {
 
 @end
 
-@interface TrueSheetContainerView () <TrueSheetContentViewDelegate, TrueSheetHeaderViewDelegate>
+@interface TrueSheetContainerView () <TrueSheetContentViewDelegate, TrueSheetHeaderViewDelegate, TrueSheetFooterViewDelegate>
 @end
 
 @implementation TrueSheetContainerView {
@@ -176,6 +176,7 @@ - (void)mountChildComponentView:(UIView<RCTComponentViewProtocol> *)childCompone
       return;
     }
     _footerView = (TrueSheetFooterView *)childComponentView;
+    _footerView.delegate = self;
   }
 }
 
@@ -192,6 +193,7 @@ - (void)unmountChildComponentView:(UIView<RCTComponentViewProtocol> *)childCompo
   }
 
   if ([childComponentView isKindOfClass:[TrueSheetFooterView class]]) {
+    _footerView.delegate = nil;
     _footerView = nil;
   }
 
@@ -222,6 +224,17 @@ - (void)contentViewScrollViewDidChange {
 
 - (void)headerViewDidChangeSize:(CGSize)newSize {
   [self.delegate containerViewHeaderDidChangeSize:newSize];
+  if (@available(iOS 26.0, *)) {
+    [self setupEdgeInteractions];
+  }
+}
+
+#pragma mark - TrueSheetFooterViewDelegate
+
+- (void)footerViewDidChangeSize:(CGSize)newSize {
+  if (@available(iOS 26.0, *)) {
+    [self setupEdgeInteractions];
+  }
 }
 
 #pragma mark - Keyboard Observer

ios/TrueSheetFooterView.h

@@ -17,9 +17,15 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
+@protocol TrueSheetFooterViewDelegate <NSObject>
+@optional
+- (void)footerViewDidChangeSize:(CGSize)size;
+@end
+
 @interface TrueSheetFooterView : RCTViewComponentView <TrueSheetKeyboardObserverDelegate>
 
 @property (nonatomic, weak, nullable) TrueSheetKeyboardObserver *keyboardObserver;
+@property (nonatomic, weak, nullable) id<TrueSheetFooterViewDelegate> delegate;
 
 - (void)setupConstraintsWithHeight:(CGFloat)height;
 

ios/TrueSheetFooterView.mm

@@ -92,6 +92,7 @@ - (void)updateLayoutMetrics:(const facebook::react::LayoutMetrics &)layoutMetric
 
   if (height != _lastHeight) {
     [self setupConstraintsWithHeight:height];
+    [self.delegate footerViewDidChangeSize:CGSizeMake(layoutMetrics.frame.size.width, height)];
   }
 }