[boyfeiyu]

When a parent injector resolves ProviderOf[T] before its child does, the cached implicit wrapper captures the parent injector. A later deferred lookup from the child can therefore ignore the child's binding override, making the result depend on lookup order.

Regenerate inherited implicit ProviderOf bindings in the requesting binder. Explicit bindings retain their original binder and scope. Regression tests cover lookup order, disabled auto-binding, constructor injection, injector hierarchies, lazy resolution, rebinding, errors, explicit bindings, singleton allocation, and assisted builders.

Validation on CPython 3.12.14 / macOS arm64:

• Full suite: 175 passed; coverage 97.12% with branch measurement enabled.
• The same nine-case reproduction: 6 failed / 3 passed on the base, 9 passed with the fix.
• mypy 1.7.1, Black 26.10.1, and check-manifest 0.49 passed (manifest checked with existing build dependencies and --no-build-isolation).

The upstream CPython/PyPy Ubuntu matrix has not been run locally.