095 template per call range expr

// Test: per-call template where the captured argument is a range
// expression. `0..3` is captured as the Expression text for `r`. The
// template interpolates it directly into a Zig `for` loop. This is the
// canonical `for` migration shape — the receipt that per-call templates
// can replace the [keyword|comptime|transform] for machinery.

const std = @import("std");

~pub event each_in { r: i32 }

~proc each_in|template|zig {
    for ({{ r }}) |item| std.debug.print("{d}\n", .{item});
}

~each_in(r: 0..3)