Update npm packages to latest versions

Fix JavaScript sourcemap paths to show full file locations
Implement --build-debug flag and complete Build UI streaming
Add xterm.js terminal UI and fix asset path routing
Add RSpade Build UI service with WebSocket support

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

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

app/RSpade/BuildUI/resource/build-service/webpack.config.js

@@ -0,0 +1,27 @@
+const path = require('path');
+
+module.exports = {
+    entry: './src/app.js',
+    output: {
+        filename: 'bundle.js',
+        path: path.resolve(__dirname, 'public', 'dist'),
+        clean: true
+    },
+    mode: 'development',
+    devtool: 'source-map',
+    watch: false, // Controlled by npm scripts
+    module: {
+        rules: [
+            {
+                test: /\.js$/,
+                exclude: /node_modules/,
+                use: {
+                    loader: 'babel-loader',
+                    options: {
+                        presets: ['@babel/preset-env']
+                    }
+                }
+            }
+        ]
+    }
+};