blog: pain-first opening, I-voice, forward-looking close

- Open with shared reqwest pain, not the tool name
- Switch "we" to "I" for personal voice (playbook: solo dev > corporate)
- Replace Unbound feature-gap excuses with what I'm exploring next
  (persistent SRTT, aggressive NSEC, adaptive hedge delays)
- Add context line linking hero cards to the recursive section

site/blog/index.html

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         <div class="post-title">Fixing DNS tail latency with a 5-line config and a 50-line function</div>
-        <div class="post-desc">We had periodic 40-140ms DoH spikes from hyper's dispatch channel. The fix was reqwest window tuning and request hedging — Dean & Barroso's "The Tail at Scale," applied to a DNS forwarder. Same ideas took our cold recursive p99 from 2.3 seconds to 538ms.</div>
+        <div class="post-desc">Periodic 40-140ms DoH spikes from hyper's dispatch channel. The fix was reqwest window tuning and request hedging — Dean & Barroso's "The Tail at Scale," applied to a DNS forwarder. Same ideas took cold recursive p99 from 2.3 seconds to 538ms.</div>
         <div class="post-date">April 2026</div>
       </a>
     </li>