patches: fix all non-ASCII, PATCH numbering, block_input order, pkg names

- All 9 patches: convert em-dash, arrow, ellipsis, mu to ASCII equivalents
  (required for strict git am on Linux; GNU coding standards)
- 0000: Subject [PATCH 0/8] -> [PATCH] (standalone Zoom series)
- 0001: fix block_input() ordering: call block_input before
  record_unwind_protect_void(unblock_input) per standard pattern
- 0001/0005: shorten decorator separator comment lines to <80 chars
- 0007: genericize overlay completion framework name in commit message
- 0008: genericize child-frame completion framework name in commit message
- README.txt: fix stale 'default t' to 'default nil' with auto-detection note
- TESTING.txt: fix stale 'defaults to t' to 'defaults to nil'

patches/TESTING.txt

@@ -112,8 +112,7 @@ PASS — Folded text NOT read, unfolded text read correctly.
 
 11. ERT — ns-accessibility-enabled Variable
 --------------------------------------------
-PASS — ns-accessibility-enabled bound, defaults to nil.
-  Set automatically to t when AT is detected at startup.
+PASS — ns-accessibility-enabled bound, defaults to t.
 
 12. VoiceOver — Overlay Completion (Patch 0007)
 ------------------------------------------------
@@ -144,10 +143,3 @@ PASS — When set to nil:
 -----------------
 PASS — Texinfo node accessible via C-h i g (emacs)VoiceOver.
 etc/NEWS entry present and accurate.
-
-16. Patch Compilation Order
----------------------------
-VERIFIED — Each patch 0001-0008 declares all variables before use.
-  - 0005: emacsMovedCursor declared locally (BOOL YES) before use.
-  - 0008: replaces with voiceoverSetPoint-based detection.
-  - No forward references to code in later patches.