readline: support kitty keyboard protocol

[jechol]

Summary

• fix Node REPL and readline key handling when VS Code's integrated terminal uses kitty keyboard protocol
• add kitty CSI-u key parsing to the readline keypress decoder
• enable kitty keyboard protocol automatically for terminal readline sessions and restore legacy mode on close
• add a tty.WriteStream#setKeyboardProtocol() API plus regression coverage

This is intended to address the regression where in the VS Code integrated terminal stops handling keys like Backspace and Ctrl+C correctly once kitty keyboard protocol is enabled. VS Code 1.109 release notes call out that kitty keyboard support is available to all users, which makes the readline/REPL incompatibility user-visible in the default terminal experience.

Reference: https://code.visualstudio.com/updates/v1_109

Testing

• python3 tools/test.py test/parallel/test-readline-keys.js
• python3 tools/test.py test/parallel/test-readline-emit-keypress-events.js
• python3 tools/test.py test/parallel/test-readline-set-raw-mode.js

[codecov]

Codecov Report

❌ Patch coverage is 86.61972% with 19 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.64%. Comparing base (ae228c1) to head (42441a1).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
lib/internal/readline/utils.js	90.09%	10 Missing ⚠️
lib/tty.js	67.85%	9 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #62186      +/-   ##
==========================================
- Coverage   89.65%   89.64%   -0.01%     
==========================================
  Files         676      676              
  Lines      206546   206669     +123     
  Branches    39558    39584      +26     
==========================================
+ Hits       185179   185274      +95     
- Misses      13485    13517      +32     
+ Partials     7882     7878       -4     

Files with missing lines	Coverage Δ
lib/internal/readline/interface.js	97.42% <100.00%> (+0.08%)	⬆️
lib/tty.js	91.83% <67.85%> (-4.00%)	⬇️
lib/internal/readline/utils.js	97.19% <90.09%> (-1.15%)	⬇️

... and 30 files with indirect coverage changes

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