084 effect branch resume numeric

// Test: effect-branch handler resumes with a numeric literal.
//
// `! query _ |> 42` — bare numeric literal IS the resume value. Same
// shape as string literal in 400_082, just confirms primitives flow.

~import "$std/io"

~pub event query { question: []const u8 }
! ask []const u8 -> i32
| done i32

~proc query|zig {
    const answer = ask(question);
    return .{ .done = answer };
}

~query(question: "The Answer?")
! ask _ |> 42
| done a |> std.io:print.blk {
    The Answer is {{ a:d }}
}