fix: standardize stats, currency, and CTAs site-wide

Resolve site-wide credibility/consistency bugs (audit A–E):

- Bug A: replace homepage pricing placeholder "Projects from $X,XXX"
  with the real "₹1,00,000" floor (matches Services Starter tier) in
  PricingTimelineBand.
- Bug C: standardize currency on ₹ — convert contact budget radios
  from $ to ₹ ranges (< ₹1L / ₹1L–₹5L / ₹5L–₹15L / ₹15L+).
- Bug B: adopt one canonical stat set everywhere — 20+ Projects ·
  11 Districts Deployed · 50,000+ Records Managed · 8+ Years Avg
  Experience. Applied to homepage stats counter + ProofNumbers band,
  /portfolio stats bar (removes "4 Specializations"), and /about grid.
  Counter now formats with en-IN grouping so 50,000+ renders correctly.
- Contact: delete the conflicting "200+ companies" claim.
- Bug E: standardize CTA wording — primary "Get my free proposal",
  secondary "See our work". Replaced "Get a free consultation",
  "Book a discovery call", "Schedule a Free Call", "Get Started",
  "Start a Project", "Get Quote", "Get my free consultation",
  "See case studies" across Home, Header, Services, Portfolio, Contact.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/pages/portfolio.astro

@@ -223,10 +223,10 @@ const featuredProjects = projects.filter(p => p.featured);
       <!-- Stats bar -->
       <div class="mt-14 grid grid-cols-2 sm:grid-cols-4 gap-4 lg:gap-6 reveal-on-scroll reveal-delay-2">
         {[
-          { value: '20+', label: 'Projects Delivered' },
-          { value: '10+', label: 'Happy Clients' },
-          { value: '4', label: 'Specializations' },
-          { value: '5★', label: 'Average Rating' },
+          { value: '20+', label: 'Projects' },
+          { value: '11', label: 'Districts Deployed' },
+          { value: '50,000+', label: 'Records Managed' },
+          { value: '8+', label: 'Years Avg Experience' },
         ].map((stat) => (
           <div class="bg-white/5 backdrop-blur-sm rounded-xl p-4 lg:p-5 text-center border border-white/10">
             <p class="text-2xl lg:text-3xl font-bold text-white">{stat.value}</p>
@@ -624,7 +624,7 @@ const featuredProjects = projects.filter(p => p.featured);
             href="/contact"
             class="inline-flex items-center justify-center rounded-xl bg-white px-8 py-3.5 font-semibold text-primary transition-all hover:bg-primary-50 hover:shadow-xl focus:outline-none focus:ring-2 focus:ring-white focus:ring-offset-2 focus:ring-offset-primary"
           >
-            Start a Project
+            Get my free proposal
           </a>
           <a
             href="/services"