docs(project-state): record the header brand + two-row mobile nav change

docs/project-state.md

@@ -18,6 +18,11 @@ Living list of what's done and what's next for blog.hoelee.com. Work through the
 - ✅ Astro 5 static + Markdown, Gitea Actions CI/CD → nginx → Cloudflare (deployed)
 - ✅ Design system: hoelee.com brand palette, Inter + JetBrains Mono, light/dark, sticky nav, code copy button
 - ✅ Brand "Mr Hoelee" (replaced "hoelee.dev")
+- ✅ Header brand = logo mark + real name (2026-10-26): `Lee Teong Hoe` in the header, preceded by the
+  three-colour brand mark (`/images/hoelee-mark-96.png`, 96 px rasterised from the brand vector so it stays
+  sharp at 26 CSS px). On ≤600 px the header is **two rows** — brand + search/lang/theme on row 1, the four
+  section links on row 2 (`ul.nav-links` takes `flex-basis: 100%`) — measured 320/360/390/414/600/768/1280:
+  `scrollWidth == innerWidth` at every width, nothing clipped. Same favicon set as learning.hoelee.com.
 - ✅ Author card + `Person`/`ProfilePage` JSON-LD (E-E-A-T), article meta, reading time, related posts
 - ✅ Full SEO: canonical, Open Graph (+dims), twitter:card, favicon (all sizes), RSS + sitemap
 - ✅ Category pages (`/categories/`, `/categories/[category]/`)