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/components/SourceMaps.js

@@ -0,0 +1,18 @@
+const { Component } = require('./Component');
+
+module.exports = class SourceMaps extends Component {
+    register(
+        generateForProduction = true,
+        devType = 'eval-source-map',
+        productionType = 'source-map'
+    ) {
+        /** @type {string|false} */
+        let type = devType;
+
+        if (this.context.api.inProduction()) {
+            type = generateForProduction ? productionType : false;
+        }
+
+        this.context.config.sourcemaps = type;
+    }
+};