patches: apply all maintainer review fixes (review pass 2)

All 9 patches now apply cleanly with git am on Linux (git 2.43.0).
Root cause of previous failures: hunk offsets were systematically wrong
by 7-40 lines; macOS git fuzzy-matched them, Linux did not.
Patches regenerated via git format-patch after applying all changes.

Fixes applied:
- P0000: unbind_to on no-candidate fall-through path; hunk regenerated
- P0001: block_input + record_unwind_protect_void in ns_ax_buffer_text
- P0003: [trims release] MRC memory leak; block_input already present
- P0004: mojibake comment (--- not UTF-8 em-dash)
- P0006: texinfo dangling semicolons -> periods in GNUstep paragraph
- P0007: em-dash fixes removed (content was already --- from P0004/P0005)
- P0008: childFrameLastBuffer -> BVAR(b,name) for GC safety;
  BUF_OVERLAY_MODIFF removed from ensureTextCache (hl-line-mode O(N)
  rebuild regression); block_input in ns_ax_buffer_text (P0001 scope);
  voiceoverSetPoint and childFrameLastBuffer explicit init in
  initFrameFromEmacs:; cachedOverlayModiffForText ivar removed

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

@@ -1,7 +1,7 @@
-From 1ecb71555d3419523d8ccebc03ace9bffac4f99e Mon Sep 17 00:00:00 2001
+From 3658dbc6fed51b2d34ab8c06707eaca1ee1a78d4 Mon Sep 17 00:00:00 2001
 From: Martin Sukany <martin@sukany.cz>
 Date: Sat, 28 Feb 2026 12:58:11 +0100
-Subject: [PATCH 1/8] ns: add accessibility base classes and text extraction
+Subject: [PATCH 2/9] ns: add accessibility base classes and text extraction
 
 Add the foundation for macOS VoiceOver accessibility in the NS (Cocoa)
 port.  No existing code paths are modified.
@@ -29,11 +29,11 @@ ns-accessibility-enabled with corrected doc: initial value is nil,
 set non-nil automatically when an AT is detected at startup.
 ---
  src/nsterm.h | 131 +++++++++++++++
- src/nsterm.m | 456 +++++++++++++++++++++++++++++++++++++++++++++++++++
+ src/nsterm.m | 452 +++++++++++++++++++++++++++++++++++++++++++++++++++
  2 files changed, 583 insertions(+)
 
 diff --git a/src/nsterm.h b/src/nsterm.h
-index ea6e7ba..5746e9e 100644
+index ea6e7ba4f5..5746e9e9bd 100644
 --- a/src/nsterm.h
 +++ b/src/nsterm.h
 @@ -453,6 +453,124 @@ enum ns_return_frame_mode
@@ -189,7 +189,7 @@ index ea6e7ba..5746e9e 100644
  
  
 diff --git a/src/nsterm.m b/src/nsterm.m
-index fc75910..852e7f9 100644
+index 88c9251c18..8b6f12517d 100644
 --- a/src/nsterm.m
 +++ b/src/nsterm.m
 @@ -46,6 +46,7 @@ Updated by Christian Limpach (chris@nice.ch)
@@ -200,7 +200,7 @@ index fc75910..852e7f9 100644
  #include "systime.h"
  #include "character.h"
  #include "xwidget.h"
-@@ -7209,6 +7210,430 @@ - (BOOL)fulfillService: (NSString *)name withArg: (NSString *)arg
+@@ -7201,6 +7202,430 @@ - (BOOL)fulfillService: (NSString *)name withArg: (NSString *)arg
  }
  #endif
  
@@ -631,7 +631,7 @@ index fc75910..852e7f9 100644
  /* ==========================================================================
  
      EmacsView implementation
-@@ -11665,6 +12090,24 @@ Convert an X font name (XLFD) to an NS font name.
+@@ -11657,6 +12082,24 @@ 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");
  
@@ -656,7 +656,7 @@ index fc75910..852e7f9 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));
-@@ -11813,6 +12260,15 @@ Nil means use fullscreen the old (< 10.7) way.  The old way works better with
+@@ -11805,6 +12248,15 @@ 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;