chore: GoatCounter analytics, README for v0.11.0, DoT blog post

- Add GoatCounter script to site pages (cookie-free, no consent needed)
- Update README: setup-phone section, DoT blog link, roadmap checkbox
- Add DoT blog post source and SVG assets

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

site/blog/index.html

@@ -189,5 +189,7 @@ body::before {
   <a href="/">Home</a>
 </footer>
 
+<script data-goatcounter="https://razvandimescu.goatcounter.com/count"
+        async src="//gc.zgo.at/count.js"></script>
 </body>
 </html>