Fix bin/publish: copy docs.dist from project root

Fix bin/publish: use correct .env path for rspade_system
Fix bin/publish script: prevent grep exit code 1 from terminating script

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

routes/channels.php

@@ -0,0 +1,18 @@
+<?php
+
+use Illuminate\Support\Facades\Broadcast;
+
+/*
+|--------------------------------------------------------------------------
+| Broadcast Channels
+|--------------------------------------------------------------------------
+|
+| Here you may register all of the event broadcasting channels that your
+| application supports. The given channel authorization callbacks are
+| used to check if an authenticated user can listen to the channel.
+|
+*/
+
+Broadcast::channel('App.Models.User.{id}', function ($user, $id) {
+    return (int) $user->id === (int) $id;
+});