import unknown alias

// ============================================================================
// VERIFIED REGRESSION TEST - DO NOT MODIFY WITHOUT DISCUSSION
// ============================================================================
// Test 403: Unknown import aliases must produce clear errors
// Only $std, $lib, and $root are valid aliases

~import "$unknown/module"

// This should never compile
const std = @import("std");

pub fn main() void {
    std.debug.print("This should fail at import resolution\n", .{});
}