Repository-wide anglicization: all remaining Chinese text translated to
English across package sources, DSH plugin UI strings, docs, scripts,
benchmarks, playground, package metadata and the CHANGELOG.

Notable changes:
- Error and diagnostic messages are now English-only; devtools
  FRAMEWORK_ERROR_RULES realigned to the English messages actually thrown
- DSH plugin lib/ bundles rebuilt from anglicized sources
- Fixed pre-existing syntax errors in four @vobs/table test files