Refine numeral normalization and release v2.2.3

Add Chinese numeral normalization for ASR output

merged

fix: improve IME diagnostics and timeout handling

Merge pull request #21 from kitty-panics/patch-1

[docs]: Corrected the table syntax in readme.md.

chore(release): bump version to 2.2.2

chore(ibus): lower key event log level to debug

fix(fcitx5): address copilot review findings

feat(fcitx5): improve hotkey workflow and app compatibility

Add voice editing feature and demo to README

Merge pull request #18 from LeonardNJU/feat/shift-f9-long-mode-slm

feat(ibus): add Ctrl+F9 voice editing workflow

Merge pull request #11 from LeonardNJU/feat/shift-f9-long-mode-slm

chore(release): prepare v2.2.0 pre-release docs and version bump