patches: fix all compile errors and review issues

- ZV_S -> BUF_ZV (undefined macro)
- cf->current_buffer -> XWINDOW(cf->selected_window)->contents
  (current_buffer is a thread macro, can't use as field name)
- find_newline: add record_unwind_current_buffer + set_buffer_internal_1
- ns_zoom_track_completion: add specpdl unwind protection
- ns_zoom_face_is_selected: replace with forward decl of ns_ax_face_is_selected
  (eliminates duplicate)
- childFrameLastBuffer: struct buffer * -> Lisp_Object (safe vs kill-buffer)
- EmacsView dealloc: xfree childFrameLastCandidate (memory leak)
- postCompletionAnnouncementForBuffer: add block_input/unblock_input

patches/0001-ns-add-accessibility-base-classes-and-text-extractio.patch

@@ -1,4 +1,4 @@
-From 59ec39bdda532d02c748a7e27f9a90ba3be3c338 Mon Sep 17 00:00:00 2001
+From 0e9726214f1081b8c4f23451ada5fc956042938b Mon Sep 17 00:00:00 2001
 From: Martin Sukany <martin@sukany.cz>
 Date: Sat, 28 Feb 2026 12:58:11 +0100
 Subject: [PATCH 2/9] ns: add accessibility base classes and text extraction
@@ -188,7 +188,7 @@ index ea6e7ba..6e830de 100644
  
  
 diff --git a/src/nsterm.m b/src/nsterm.m
-index 05ec3d1..a4d0e02 100644
+index 2dd79ca..b4437f1 100644
 --- a/src/nsterm.m
 +++ b/src/nsterm.m
 @@ -46,6 +46,7 @@ Updated by Christian Limpach (chris@nice.ch)
@@ -199,7 +199,7 @@ index 05ec3d1..a4d0e02 100644
  #include "systime.h"
  #include "character.h"
  #include "xwidget.h"
-@@ -7141,6 +7142,430 @@ - (BOOL)fulfillService: (NSString *)name withArg: (NSString *)arg
+@@ -7133,6 +7134,430 @@ - (BOOL)fulfillService: (NSString *)name withArg: (NSString *)arg
  }
  #endif
  
@@ -630,7 +630,7 @@ index 05ec3d1..a4d0e02 100644
  /* ==========================================================================
  
      EmacsView implementation
-@@ -11597,6 +12022,28 @@ Convert an X font name (XLFD) to an NS font name.
+@@ -11592,6 +12017,28 @@ Convert an X font name (XLFD) to an NS font name.
    DEFSYM (Qns_drag_operation_generic, "ns-drag-operation-generic");
    DEFSYM (Qns_handle_drag_motion, "ns-handle-drag-motion");
  
@@ -659,7 +659,7 @@ index 05ec3d1..a4d0e02 100644
    Fput (Qalt, Qmodifier_value, make_fixnum (alt_modifier));
    Fput (Qhyper, Qmodifier_value, make_fixnum (hyper_modifier));
    Fput (Qmeta, Qmodifier_value, make_fixnum (meta_modifier));
-@@ -11745,6 +12192,15 @@ Nil means use fullscreen the old (< 10.7) way.  The old way works better with
+@@ -11740,6 +12187,15 @@ Nil means use fullscreen the old (< 10.7) way.  The old way works better with
  This variable is ignored on Mac OS X < 10.7 and GNUstep.  */);
    ns_use_srgb_colorspace = YES;