Implement UI components and quick wins

- Complete Dashboard page with statistics, recent activity, compliance status
- Complete Transactions page with form, validation, E&O uplift display
- Complete Treasury page with account management
- Complete Reports page with BCB report generation and export
- Add LoadingSpinner component
- Add ErrorBoundary component
- Add Toast notification system
- Add comprehensive input validation
- Add error handling utilities
- Add basic unit tests structure
- Fix XML exporter TypeScript errors
- All quick wins completed

packages/rules-engine/package.json

@@ -7,6 +7,8 @@
     "build": "tsc",
     "dev": "tsc --watch",
     "type-check": "tsc --noEmit",
+    "test": "vitest run",
+    "test:watch": "vitest",
     "clean": "rm -rf dist"
   },
   "dependencies": {
@@ -15,6 +17,7 @@
     "decimal.js": "^10.4.3"
   },
   "devDependencies": {
-    "typescript": "^5.3.3"
+    "typescript": "^5.3.3",
+    "vitest": "^1.0.0"
   }
 }