fix: remove staking references from landing page

Landing page sells the token, not staking. Staking is password-protected
for insiders — not advertised to casual visitors.

- 'Stake in 30 Seconds' → 'Get $KRK in 30 Seconds' (Mixed)
- 'Stake & Grow' → 'Get $KRK' (Offensive)
- Remove 'staker sentiment' from HomeView copy
- Add staking visibility rule to UX-DECISIONS.md

landing/src/views/HomeView.vue

@@ -28,7 +28,7 @@
         <div class="card">
           <div class="card-emoji">⚙️</div>
           <h3>Self-Adjusting</h3>
-          <p>The protocol rebalances liquidity automatically based on market conditions and staker sentiment. You don't lift a finger.</p>
+          <p>The protocol rebalances liquidity automatically based on market conditions. You don't lift a finger.</p>
         </div>
         <div class="card">
           <div class="card-emoji">🔍</div>

landing/src/views/HomeViewMixed.vue

@@ -60,7 +60,7 @@
           <img src="@/assets/img/chest.png" alt="Get Started" class="image-card" />
         </template>
         <template #right>
-          <h2>Stake in 30 Seconds</h2>
+          <h2>Get $KRK in 30 Seconds</h2>
           <ol class="steps-list">
             <li>Connect your wallet</li>
             <li>Buy $KRK with ETH</li>

landing/src/views/HomeViewOffensive.vue

@@ -37,7 +37,7 @@
         </div>
       </div>
       <div class="centered-cta">
-        <KButton @click="router.push('/app/get-krk')">Stake & Grow</KButton>
+        <KButton @click="router.push('/app/get-krk')">Get $KRK</KButton>
       </div>
     </section>
     <section class="protocol-health-section">