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>

node_modules/baseline-browser-mapping/package.json

@@ -1,7 +1,7 @@
 {
   "name": "baseline-browser-mapping",
   "main": "./dist/index.cjs",
-  "version": "2.8.20",
+  "version": "2.8.21",
   "description": "A library for obtaining browser versions with their maximum supported Baseline feature set and Widely Available status.",
   "exports": {
     ".": {
@@ -43,7 +43,7 @@
   },
   "license": "Apache-2.0",
   "devDependencies": {
-    "@mdn/browser-compat-data": "^7.1.15",
+    "@mdn/browser-compat-data": "^7.1.17",
     "@rollup/plugin-terser": "^0.4.4",
     "@rollup/plugin-typescript": "^12.1.3",
     "@types/node": "^22.15.17",