Add configurable offline layout correction and latest Windows release

README.md

@@ -117,6 +117,58 @@ Alternatively open this directory as a CMake project in Visual Studio with the C
 and Windows SDK installed, or use CMake with a Windows GCC toolchain. CMake/MSVC is provided but the
 verified local build uses GCC/w64devkit.
 
+## Automatic layout correction (experimental)
+
+Enable **Automatically correct layout (experimental)** in Settings, then use **Auto-correction
+options…** to select dictionary languages and edit excluded applications or words to never correct.
+The feature is off by default. English and Ukrainian are selected initially; Russian is optional.
+Target layouts must also be enabled in the layout cycle.
+
+**Characters before a word** and **Characters after a word** configure punctuation to preserve around
+the corrected word. Enter characters directly, without spaces or separators; a comma or semicolon
+is itself a character. Defaults include parentheses, square/curly brackets, quotation marks and common
+trailing punctuation, including colon and semicolon. Empty fields disable stripping on that side.
+Up to three leading and six trailing characters (including the final space) are supported. Recognition
+still requires a verified complete word; punctuation inside a word is not stripped. Correction runs
+after Space, not immediately after a punctuation key. Save Settings to apply changes.
+
+**Frequency rank limit** defaults to **0 (entire dictionary)**. A positive value allows corrections
+only to words with a rank at or below that number (for example, 10000). All dictionary words still
+protect already valid input, and ambiguous alternatives remain unchanged regardless of this limit.
+**Open dictionary folder** opens the files beside the running executable. After editing, click OK
+in the options window and Save in Settings to validate and reload the dictionaries without restarting.
+Use UTF-8, one lowercase word followed by a Tab and a positive rank per line; keep words sorted and
+unique. For a personal addition, rank 1 makes it eligible at every positive limit. Back up your edited
+files before replacing dictionaries with a new distribution.
+
+After Space and a 250 ms typing pause, KSwitcher checks the last physically typed word against local
+dictionaries. For example, `ghbdsn ` can become `привіт `. Continuing to type cancels pending work.
+It only corrects unknown words when exactly one alternative is a dictionary word.
+**Minimum word length** defaults to 3 and can be set from 1 to 32 letters. Surrounding punctuation
+does not count toward this minimum; the maximum word length is 32 letters.
+Known words, ambiguous alternatives, ALL CAPS, mixed-case identifiers, numbers, URLs and email
+addresses are left unchanged. Short trailing punctuation is retained when the editor selects it
+together with the word. Actual selected text is verified before replacement. Layout switching follows
+the existing switch-layout setting. The configured Undo shortcut restores the original and suppresses
+that word for the rest of the session (until restart).
+
+Password fields and inaccessible controls are skipped using Windows UI Automation. Editors, terminals
+and password managers are excluded by default; process names can be edited in the options window.
+Controls that do not expose an editable/document element or cannot select a complete word may not
+support automatic correction. Dictionary recognition is heuristic, not an understanding of the sentence;
+subtitle vocabulary is incomplete, and uncommon names or jargon can need personal exceptions.
+
+No network service or language model is used. The three dictionary files occupy about 2.6 MB on disk;
+the English/Ukrainian lookup data uses less than 3 MiB of RAM and is loaded on first automatic check.
+Keep `dictionaries/` beside the executable when copying the app. These word lists derive from
+[FrequencyWords](https://github.com/hermitdave/FrequencyWords) and are separately licensed under
+CC BY-SA 4.0; attribution, pinned source revision and license are in `dictionaries/`.
+
+## Latest compiled release
+
+The [Release folder](Release/README.md) contains the latest portable Windows x64 ZIP and SHA-256 checksum.
+Run `./package.ps1 -PublishRelease` after building and testing to refresh the tracked release archive.
+
 ## Verification
 
 ```powershell
@@ -143,4 +195,5 @@ It still uses the normal instance lock; close a running KSwitcher first if measu
 - `ocr.*`: Windows WIC and OCR via the native Windows Runtime ABI.
 - `tests/`: regression checks, real editor integration and OCR fixture.
 
-MIT licensed; preserves the original Typlo attribution in `LICENSE`.
+Application code is MIT licensed; preserves the original Typlo attribution in `LICENSE`.
+Dictionary data has its own CC BY-SA 4.0 license as described above.