Add ESLint rule to enforce Lingui msg usage (#9789)
* Add ESLint rule to enforce Lingui msg usage
Adds a custom ESLint rule 'lingui-msg-rule' that ensures the Lingui _()
function is called with msg`` template literals or plural/select macros,
preventing accidental misuse like _('string') which bypasses i18n.
https://claude.ai/code/session_01JMXXPUgAHiSBGmfGwUojKy
* Support msg({...}) descriptor form and add auto-fix
- Allow msg() function call form: _(msg({message: 'Hello'}))
- Add auto-fix for string literals: _('Bad') -> _(msg`Bad`)
- Add auto-fix for untagged templates: _(`Bad`) -> _(msg`Bad`)
- No auto-fix for variables/function calls (not safely fixable)
https://claude.ai/code/session_01JMXXPUgAHiSBGmfGwUojKy
* fix complex cases
* run autofix HELL YEAH
---------
Co-authored-by: Claude <noreply@anthropic.com>