feat(web): polish commission flow and default public navigation

apps/web/src/messages/en.json

@@ -21,6 +21,9 @@
     "brand": "CMS Web",
     "nav": {
       "home": "Home",
+      "portfolio": "Portfolio",
+      "news": "News",
+      "commissions": "Commissions",
       "about": "About",
       "contact": "Contact"
     },
@@ -49,6 +52,7 @@
     "description": "Share your idea and project details. We will review and reply as soon as possible.",
     "success": "Your commission request was submitted.",
     "error": "Submission failed. Please review your data and try again.",
+    "budgetRangeError": "Budget max must be greater than or equal to budget min.",
     "submit": "Submit request",
     "fields": {
       "customerName": "Name",