patches: address all non-blocking review findings

Fix remaining issues identified in core maintainer review:
- 0000: correct [PATCH 0/8] to [PATCH] (standalone Zoom series)
- 0006: add paragraph break in macos.texi VoiceOver section
- 0001/0005: shorten separator comment lines to 79 chars
- 0007/0008: genericize third-party package names in commit messages
- 0001: fix block_input ordering (block before registering unwind)
- 0000/0007: document intentional face_is_selected duplication

patches/README.txt

@@ -88,7 +88,9 @@ ARCHITECTURE
 PERFORMANCE
 -----------
 
-  ns-accessibility-enabled (DEFVAR_BOOL, default t):
+  ns-accessibility-enabled (DEFVAR_BOOL, default nil):
+    Set automatically at startup when macOS Zoom or an assistive
+    technology (VoiceOver, Switch Control) is detected.
     When nil, no virtual elements are built, no notifications are
     posted, and ns_draw_window_cursor skips the cursor rect store.
     Zero overhead for users who do not use assistive technology.
@@ -117,7 +119,7 @@ KNOWN LIMITATIONS
   - Overlay face matching: string containment ("current", "selected")
   - GNUstep excluded (#ifdef NS_IMPL_COCOA)
   - No multi-frame coordination
-  - Child frame static lastCandidate leaks at exit (minor)
+  - Child frame childFrameLastCandidate (per-view ivar, freed in dealloc)
 
 
 TESTING