Finish up edit field accessibility.

README.md

@@ -87,6 +87,27 @@ repeated selections, and restores standard-control focus reporting when menus
 close. The hook applies to the helper's Wine desktop and prefix and is removed
 on normal shutdown. It is disabled by `--no-dialog-reader`.
 
+The same DLL subclasses standard `Edit` controls, including Wine Notepad's
+document area. It reports the current line on focus and menu return, characters
+and words on horizontal navigation, lines on vertical/page/document-boundary
+navigation, changed selections, and Backspace/Delete/Cut feedback. Password
+contents are excluded, and read-only edits do not report unsuccessful deletions.
+Undo refreshes the text snapshot used by subsequent navigation. It can attach to
+an already-focused editor and resume after the helper restarts.
+
+Editor actions use `PresentAccessibleEvent` with event type `text`; actual focus
+uses `focus`. Cthulhu-Go must include the corresponding editor-event support so
+rapid actions and repeated characters bypass focus coalescing. UTF-16 selection
+offsets and the action kind travel in the otherwise non-spoken `states` field
+for debug diagnostics. Older readers that only accept focus/value/selection
+events still receive focus and menus, but need updating for editor actions.
+
+This is editing feedback, not a full text-review provider: Say All, review-cursor
+commands and braille routing into Wine text are not implemented. Typing echo
+remains the reader's responsibility. RichEdit and 32-bit editor hooks are not
+covered. Reports are limited to 1023 UTF-16 units; documents over one million
+units use line feedback without full selection/deletion snapshots.
+
 Keep all three installed files together. The native hook currently targets
 64-bit applications; 32-bit menu coverage and custom menus that do not send
 `WM_MENUSELECT` are not established.
@@ -98,6 +119,8 @@ available (`python-gobject` on Arch Linux):
 
 ```sh
 python3 tests/menu_integration.py --build-dir build
+python3 tests/menu_integration.py --build-dir build --fixture edit
+python3 tests/menu_integration.py --build-dir build --fixture notepad
 ```
 
 The test opens a short-lived native menu window in a temporary Wine prefix,
@@ -106,6 +129,11 @@ context menus, shortcuts, item states, and duplicate suppression. It does not
 send speech or braille to the running reader. Live listening with Cthulhu is a
 separate acceptance check.
 
+See [the test guide](tests/README.md) for helper lifecycle checks and the live
+Notepad speech/braille procedure. After updating the DLL, close and reopen the
+Wine application: existing control subclasses keep their DLL loaded until the
+application exits.
+
 ## License
 
 The helper source is available under the terms of LGPL-2.1-or-later. See