No `debug_assert` in prod

[bedeho]

Background

We are multiple places in the runtime doing debug_assert on invariants, but this would cause panic if failed

https://doc.rust-lang.org/reference/conditional-compilation.html#debug_assertions

Proposal

1. For whatever scripts, automated builds or documentation we have about building a node or runtime blob, make sure debug_assert is not included in production builds.
2. If the distinction between production and non-production builds is not clear in all cases, introduce the distinction.

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