feat(homepage): add TrustStrip + GuaranteeBand for trust + risk-reversal

- TrustStrip.astro: single-row, grayscale-on-default / colour-on-hover
  client logo strip under the hero. 6 logos via <img> with explicit
  width/height + loading=lazy (CLS-safe), wraps to 3+3 on mobile.
  Includes sr-only "Trusted by" heading and dark-mode invert filter
  vetted against THEME_ACCESSIBILITY_AUDIT.md. Replaces the older
  ClientLogos placement on the homepage.

- GuaranteeBand.astro: 3-up risk-reversal band wedged between
  PricingTimelineBand and InlineLeadForm. Three claims (30-day
  satisfaction guarantee, no long-term contracts, fixed-price quotes)
  with icon + headline + supporting body. Stacks vertically on mobile.

- public/images/logos/: 6 placeholder SVG wordmarks (plnr, rentec,
  iit-patna, moc-soft, gov-bihar, pscl). Replace at same path with
  real client-supplied artwork when handed off.

- index.astro: wires the two new components, repoints the hero
  scroll indicator to #trust-strip, preserves legacy #client-logos
  anchor for any external deep-links.

src/pages/index.astro

@@ -2,11 +2,12 @@
 // Home page - WorkRoot IT Solutions
 import BaseLayout from '../layouts/BaseLayout.astro';
 import SEO from '../components/SEO.astro';
-import ClientLogos from '../components/ClientLogos.astro';
+import TrustStrip from '../components/TrustStrip.astro';
 import InlineLeadForm from '../components/InlineLeadForm.astro';
 import HomepageFaq from '../components/HomepageFaq.astro';
 import ProofNumbers from '../components/ProofNumbers.astro';
 import PricingTimelineBand from '../components/PricingTimelineBand.astro';
+import GuaranteeBand from '../components/GuaranteeBand.astro';
 
 // Services data — outcome-led headlines with anchor slugs that deep-link
 // into the matching detail sections on /services.
@@ -254,10 +255,10 @@ const techStack = [
       </div>
     </div>
 
-    <!-- Scroll indicator — points at the client-logo social-proof strip just
+    <!-- Scroll indicator — points at the TrustStrip social-proof strip just
          below the hero so the first interaction surface is trust, not stack. -->
     <div class="absolute bottom-8 left-1/2 -translate-x-1/2 opacity-0 animate-fade-in" style="animation-delay: 1s;">
-      <a href="#client-logos" class="flex flex-col items-center text-white/60 hover:text-white transition-colors group" aria-label="Scroll to client logos">
+      <a href="#trust-strip" class="flex flex-col items-center text-white/60 hover:text-white transition-colors group" aria-label="Scroll to client logos">
         <span class="text-sm mb-2">See who we work with</span>
         <svg class="w-6 h-6 animate-bounce" fill="none" stroke="currentColor" viewBox="0 0 24 24">
           <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 14l-7 7m0 0l-7-7m7 7V3"></path>
@@ -266,9 +267,15 @@ const techStack = [
     </div>
   </section>
 
-  <!-- Client Logos / Social Proof Strip -->
+  <!-- Trust Strip — single-row, grayscale-on-default / colour-on-hover
+       row of client + partner logos. Replaces the older ClientLogos grid:
+       see src/components/TrustStrip.astro for the rationale (sr-only
+       "Trusted by" heading, explicit width/height on every <img> for CLS,
+       3+3 mobile layout, dark-mode invert filter). The wrapper div
+       preserves the legacy `#client-logos` anchor for any external
+       deep-links / analytics callers that still target it. -->
   <div id="client-logos">
-    <ClientLogos />
+    <TrustStrip />
   </div>
 
   <!-- Proof Numbers Band — replaces the older "Why Choose Us" benefits grid.
@@ -637,6 +644,13 @@ const techStack = [
        flagged with `data-stakeholder-confirm` markers + HTML comments. -->
   <PricingTimelineBand />
 
+  <!-- Risk-reversal Guarantee Band — three short promises (satisfaction
+       guarantee, no long-term contracts, fixed-price quotes) wedged
+       between the pricing/timeline values and the lead form. Removes
+       last-mile objections at the exact moment the visitor is deciding
+       whether to commit to the form below. Anchor `#guarantees`. -->
+  <GuaranteeBand />
+
   <!-- Inline Lead Form — sits between the tech-stack social-proof block
        and the final CTA band so visitors who are ready to start a project can
        submit a 3-field enquiry without leaving the homepage. Submits to the