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>

stubs/controller.invokable.stub

@@ -0,0 +1,20 @@
+<?php
+
+namespace {{ namespace }};
+
+use {{ rootNamespace }}Http\Controllers\Controller;
+use Illuminate\Http\Request;
+
+class {{ class }} extends Controller
+{
+    /**
+     * Handle the incoming request.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return \Illuminate\Http\Response
+     */
+    public function __invoke(Request $request)
+    {
+        //
+    }
+}