refactor: use reflect.TypeFor

[box4wangjing]

Try to use better api reflect.TypeFor instead of reflect.TypeOf when we have known the type.
More info golang/go#60088

Inspired by #653 and replace all.

[box4wangjing]

@semyon-dev Hi, Could you please review this PR at your convenience? Thank you very much.

[semyon-dev]

The migration itself looks safe and preserves the existing value-type semantics (T instead of *T).

One thing worth double-checking is that TypedAtomicStorageImpl intentionally expects non-pointer reflected types, while runtime usage operates on pointers (*ModelKey, *ModelData, etc.). This behavior already existed before the refactor, so the PR does not introduce it, but it's an important invariant for future changes.

[semyon-dev]

One small note: the PR description says "replace all", but there are still several handwritten storage-related usages of reflect.TypeOf(T{}) remaining (for example in payment_channel_storage.go, prepaid_storage.go, and license_storage.go).

The remaining .pb.go generated files are probably fine to leave untouched, but it may be worth either:

• updating the PR description to clarify the scope, or
• including the remaining storage-layer replacements for consistency.