001 slice type imported module

// ============================================================================
// BUG 990: Slice Types from Imported Modules Generate Invalid Zig
// ============================================================================
//
// Issue: When a Koru event returns a slice of a type from an imported module,
// the generated Zig code has incorrect syntax.
//
// Expected Zig:  handles: []const koru_mylib.Handle
// Actual Zig:    handles: koru_[]const mylib.Handle    ❌ INVALID!
//
// This affects any event that returns/accepts slices of imported types.
//
// Discovered while building $std/threading library (test 2006)
// ============================================================================

const std = @import("std");
~import $std/threading

// Minimal reproduction: Event that returns slice of imported type
~event getHandles {}
| got []const threading:WorkerHandle

~proc getHandles {
    // Create empty slice just to test codegen
    const handles = std.heap.page_allocator.alloc(threading:WorkerHandle, 0) catch unreachable;
    return .{ .got = handles };
}

// Try to use it
~getHandles()
| got |> _