* Retranslate the complete Japanese online edition from Chinese
* Fit Japanese homepage labels and localize heading permalinks
* Point Japanese contribution instructions to the Japanese preview
* Replace locale conditionals with multilingual UI tables
* feat(ko): add the complete Korean online edition
* Use UTF-8 for Python CI output on Windows
* Remove print-book promotion from the Korean site
* fix(ko): preserve emphasis before Korean particles
Synchronize the fixes from #1936, #1824, and #1961 across translated editions and normalize C# and Dart formatting. Move Java CI to Ubuntu 24.04 so its Java 11/17 checks can run.
* Review the EN heading format.
* Fix pythontutor headings.
* Fix pythontutor headings.
* bug fixes
* Fix headings in **/summary.md
* Revisit the CN-to-EN translation for Python code using Claude-4.5
* Revisit the CN-to-EN translation for Java code using Claude-4.5
* Revisit the CN-to-EN translation for Cpp code using Claude-4.5.
* Fix the dictionary.
* Fix cpp code translation for the multipart strings.
* Translate Go code to English.
* Update workflows to test EN code.
* Add EN translation for C.
* Add EN translation for CSharp.
* Add EN translation for Swift.
* Trigger the CI check.
* Revert.
* Update en/hash_map.md
* Add the EN version of Dart code.
* Add the EN version of Kotlin code.
* Add missing code files.
* Add the EN version of JavaScript code.
* Add the EN version of TypeScript code.
* Fix the workflows.
* Add the EN version of Ruby code.
* Add the EN version of Rust code.
* Update the CI check for the English version code.
* Update Python CI check.
* Fix cmakelists for en/C code.
* Fix Ruby comments
