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>

vendor/spatie/ignition/node_modules/spawn-command/README.md

@@ -0,0 +1,20 @@
+# spawn-command [![Build Status](https://secure.travis-ci.org/mmalecki/spawn-command.png)](http://travis-ci.org/mmalecki/spawn-command)
+Spawn commands like `child_process.exec` does but return a `ChildProcess`.
+
+## Installation
+
+    npm install spawn-command
+
+## Usage
+```js
+var spawnCommand = require('spawn-command'),
+    child = spawnCommand('echo "Hello spawn" | base64');
+
+child.stdout.on('data', function (data) {
+  console.log('data', data);
+});
+
+child.on('exit', function (exitCode) {
+  console.log('exit', exitCode);
+});
+```