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>

node_modules/laravel-mix/src/Assert.js

@@ -0,0 +1,74 @@
+let assert = require('assert');
+let File = require('./File');
+
+class Assert {
+    /**
+     * Assert that the call the mix.js() is valid.
+     *
+     * @param {any} entry
+     * @param {any} output
+     */
+    static js(entry, output) {
+        assert(
+            typeof entry === 'string' || Array.isArray(entry),
+            'mix.js() is missing required parameter 1: entry'
+        );
+
+        assert(
+            typeof output === 'string',
+            'mix.js() is missing required parameter 2: output'
+        );
+    }
+
+    /**
+     * Assert that the calls to mix.sass() and mix.less() are valid.
+     *
+     * @param {string} type
+     * @param {string} src
+     * @param {string} output
+     */
+    static preprocessor(type, src, output) {
+        assert(
+            typeof src === 'string',
+            `mix.${type}() is missing required parameter 1: src`
+        );
+
+        assert(
+            typeof output === 'string',
+            `mix.${type}() is missing required parameter 2: output`
+        );
+    }
+
+    /**
+     * Assert that calls to mix.combine() are valid.
+     *
+     * @param {string|string[]} src
+     * @param {File}   output
+     */
+    static combine(src, output) {
+        assert(
+            typeof src === 'string' || Array.isArray(src),
+            `mix.combine() requires a valid src string or array.`
+        );
+
+        assert(
+            output.isFile(),
+            'mix.combine() requires a full output file path as the second argument. Got ' +
+                output.path()
+        );
+    }
+
+    /**
+     * Assert that the given file exists.
+     *
+     * @param {string} file
+     */
+    static exists(file) {
+        assert(
+            File.exists(file),
+            `Whoops, you are trying to compile ${file}, but that file does not exist.`
+        );
+    }
+}
+
+module.exports = Assert;