Extend best-practice list: recommend using typed units instead of integer-based conversions

It would be nice to recommend using typed units of measurement whenever possible.

E.g. in our official libraries we gave up on API in the form of `foo(timeMillis: Long)` and `foo(time: Long, unit: TimeUnit)` -- it's unnecessarily verbose, unclear from the call site (esp. when *callers* do not follow the naming convention), and, most importantly, is error-prone (off-by-order-of-magnitude errors). AFAIR Google even used to have a JVMLS talk about that, but all I can find is [this discussion](https://openjdk.markmail.org/thread/ndcwjnmbpwhkvkwe#query:+page:1+mid:w275uwdzjtfmiy42+state:results).

The same applies to any "easily-convertible" units -- SI, durations, bytes (kilo-/mega-) etc.

The issue does not name a file, test, or entry point. Start by locating the best-practice list in this repository and review nearby guidance for API examples; done means adding clear guidance about typed units of measurement, including the listed duration, SI, and byte cases.

Written by the indexing model from the issue text.