copy: emphasize 'first 10 devices always free' across marketing page

lib/towerops_web/controllers/page_html/home.html.heex

@@ -25,7 +25,7 @@
       and what to fix first.
     </p>
     <p class="mx-auto mt-4 max-w-2xl text-xl font-semibold tracking-tight text-blue-600">
-      Free up to 10 devices. No credit card required.
+      First 10 devices always free. No credit card required.
     </p>
     <div class="mt-10 flex justify-center gap-x-6">
       <.link
@@ -316,10 +316,10 @@
     <div class="mx-auto max-w-7xl px-4 sm:px-6 lg:px-8">
       <div class="mx-auto max-w-2xl text-center">
         <h2 class="font-display text-3xl tracking-tight text-slate-900 sm:text-4xl">
-          Simple per-device pricing
+          Your first 10 devices are always free
         </h2>
         <p class="mt-4 text-lg tracking-tight text-slate-700">
-          Start free. Pay only when you're ready to scale.
+          Every feature. No time limits. No credit card. Only pay when you grow past 10 devices.
         </p>
       </div>
       <div class="mt-16 mx-auto max-w-xl">
@@ -329,7 +329,7 @@
             <span class="text-lg text-slate-500">/device/month</span>
           </div>
           <p class="mt-3 text-base text-slate-600">
-            First <strong class="text-slate-900">10 devices free</strong>, forever. All features included.
+            First 10 devices are <strong class="text-slate-900">free forever</strong> — all features, no limits. Pay $3/device/month only after that.
           </p>
 
           <div class="mt-10 grid grid-cols-2 gap-x-8 gap-y-3 text-sm text-slate-600 text-left max-w-md mx-auto">
@@ -440,7 +440,7 @@
           Stop guessing. Start seeing impact.
         </h2>
         <p class="mt-4 text-lg tracking-tight text-blue-100">
-          Free for up to 10 devices. Deploy an agent, connect your billing system,
+          First 10 devices always free. Deploy an agent, connect your billing system,
           and see the difference in your first outage.
         </p>
         <.link