feat(web): add /pricing page with subscription tier comparison

Complete public pricing page showing all 4 subscription plans (FREE,
AGENT_PRO, INVESTOR, ENTERPRISE) with billing cycle toggle, feature
comparison table, VND formatting, and Vietnamese/English i18n support.
Also adds pricing link to public navigation header and footer.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

apps/web/messages/en.json

@@ -25,15 +25,19 @@
   "nav": {
     "home": "Home",
     "search": "Search",
+    "pricing": "Pricing",
     "mainNav": "Main navigation",
     "dashboardNav": "Dashboard",
-    "adminNav": "Administration"
+    "adminNav": "Administration",
+    "openMenu": "Open menu",
+    "closeMenu": "Close menu"
   },
   "dashboard": {
     "title": "Dashboard",
     "listings": "Listings",
     "createListing": "Create listing",
     "analytics": "Analytics",
+    "savedSearches": "Saved searches",
     "aiValuation": "AI Valuation",
     "profile": "Profile",
     "subscription": "Subscription",
@@ -142,6 +146,54 @@
       "default": "An error occurred during login. Please try again."
     }
   },
+  "pricing": {
+    "badge": "Pricing Plans",
+    "title": "Choose the right plan for you",
+    "subtitle": "From individuals to enterprises — GoodGo has a plan for every real estate need",
+    "monthly": "Monthly",
+    "yearly": "Yearly",
+    "yearlyDiscount": "-17%",
+    "perMonth": "month",
+    "perYear": "year",
+    "loading": "Loading plans...",
+    "popular": "Most popular",
+    "unlimited": "Unlimited",
+    "listingsCount": "listings",
+    "savedSearchesCount": "saved searches",
+    "photosPerListing": "photos/listing",
+    "tiers": {
+      "FREE": "Free",
+      "AGENT_PRO": "Agent Pro",
+      "INVESTOR": "Investor",
+      "ENTERPRISE": "Enterprise"
+    },
+    "tierDescriptions": {
+      "FREE": "Get started for free, explore the platform",
+      "AGENT_PRO": "For professional real estate agents",
+      "INVESTOR": "Analytics tools for investors",
+      "ENTERPRISE": "Comprehensive solution for businesses"
+    },
+    "features": {
+      "analytics": "Market analytics",
+      "aiValuation": "AI valuation",
+      "prioritySupport": "Priority support",
+      "featuredListing": "Featured listings",
+      "leadManagement": "Lead management",
+      "marketReports": "Market reports",
+      "portfolioTracking": "Portfolio tracking",
+      "apiAccess": "API access"
+    },
+    "ctaFree": "Register for free",
+    "ctaUpgrade": "Get started",
+    "ctaEnterprise": "Contact sales",
+    "comparisonTitle": "Compare plans in detail",
+    "comparisonSubtitle": "See all features for each plan",
+    "feature": "Feature",
+    "ctaTitle": "Ready to get started?",
+    "ctaDescription": "Sign up today and start your real estate journey with GoodGo",
+    "ctaRegister": "Register now",
+    "ctaLearnMore": "Learn more"
+  },
   "search": {
     "filters": "Filters",
     "allTransactions": "All transactions",