Do not ignore _globalns that is set via inject()

[sobolevn]

This way you can actually override some things from module's namespace with inject() function. It is very useful for tests.

[RobertoPrevato]

Thanks @sobolevn, and sorry for not merging your PRs earlier. Thanks to the productivity boost of GH Copilot, I am now able to follow-up on all pending issues and PRs from the past while still focusing on blacksheep. In this case, Copilot detected two bugs in your original PR and fixed them.

Just for future record (Claude Sonnet 4.6):

• Both bugs fixed: dict(vars(...)) copy to avoid mutating the live module namespace, and _get_obj_globals (not _get_obj_locals) in __call__.
• New-style dict[str, Any] annotation on _get_obj_globals.
• Two new tests covering both the annotation-based and init-based resolution paths.
• 179 tests passing.