Zig asserts are not C asserts

Zig's std.debug.assert behaves differently from C's assert macro. In Zig, assert is a regular function that evaluates to `if (!ok) unreachable`, meaning the expression is always evaluated even in release builds. The optimizer won't remove code with side effects or memory dependencies, so calls like `assert(try q.put(...))` remain safe. However, the optimizer may not always eliminate dead code in complex assertions, potentially causing performance issues. Unlike C's preprocessor-based assert that can remove entire expressions, Zig's approach prevents bugs from side effects inside assertions while still providing optimization hints through unreachable.