v13 patch: fix MRC retain/release for accessibilityElements array

- arrayWithCapacity: returns autorelease object, must retain for ivar
- Release old array before reassigning in rebuildAccessibilityTree
- Release in EmacsView dealloc
- Fixes crash: _NSPasteboardTypeCache countByEnumeratingWithState (dangling pointer)

patches/0001-ns-implement-AXBoundsForRange-for-macOS-Zoom-cursor-.patch

@@ -12,6 +12,7 @@ New classes:
 
 EmacsView becomes an AXGroup containing EmacsAccessibilityBuffer children.
 Notification hooks fire on cursor movement, text edits, and window changes.
+Uses unsafe_unretained references (MRC compatible) and proper retain/release.
 ---
 --- a/src/nsterm.h	2026-02-26 08:46:18.118172281 +0100
 +++ b/src/nsterm.h	2026-02-26 08:46:06.891980688 +0100
@@ -73,7 +74,7 @@ Notification hooks fire on cursor movement, text edits, and window changes.
  
  
 --- a/src/nsterm.m	2026-02-26 08:46:18.124172384 +0100
-+++ b/src/nsterm.m	2026-02-26 08:46:06.895980756 +0100
++++ b/src/nsterm.m	2026-02-26 08:52:18.397374436 +0100
 @@ -1104,6 +1104,11 @@
  
    unblock_input ();
@@ -697,7 +698,15 @@ Notification hooks fire on cursor movement, text edits, and window changes.
      EmacsView implementation
  
     ========================================================================== */
-@@ -9474,6 +10083,143 @@
+@@ -6889,6 +7498,7 @@
+   [layer release];
+ #endif
+ 
++  [accessibilityElements release];
+   [[self menu] release];
+   [super dealloc];
+ }
+@@ -9474,6 +10084,144 @@
    return fs_state;
  }
  
@@ -753,7 +762,8 @@ Notification hooks fire on cursor movement, text edits, and window changes.
 +  NSMutableArray *newElements = [NSMutableArray arrayWithCapacity:4];
 +  Lisp_Object root = FRAME_ROOT_WINDOW (emacsframe);
 +  ns_ax_collect_windows (root, self, newElements);
-+  accessibilityElements = newElements;
++  [accessibilityElements release];
++  accessibilityElements = [newElements retain];
 +}
 +
 +- (NSAccessibilityRole)accessibilityRole
@@ -841,7 +851,7 @@ Notification hooks fire on cursor movement, text edits, and window changes.
  @end  /* EmacsView */
  
  
-@@ -9941,6 +10687,14 @@
+@@ -9941,6 +10689,14 @@
  
    return [super accessibilityAttributeValue:attribute];
  }