Ship local assets, portfolio filters, favicon, and UI polish.

Host CDN images locally, add top-level portfolio category filtering with nav sublinks, refresh the Meshkee favicon, and tighten title/gallery/footer presentation across the site.

Co-authored-by: Cursor <cursoragent@cursor.com>

public/assets/images

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+../../src/assets/images

public/images/brand/meshkee-mark.svg

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+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 128 128" width="128" height="128">
+  <rect width="128" height="128" fill="#000000"/>
+  <g fill="none" stroke="#FFFFFF" stroke-width="8" stroke-linecap="round">
+    <!-- top: ring left + line right -->
+    <circle cx="36" cy="46" r="10"/>
+    <line x1="46" y1="46" x2="96" y2="46"/>
+    <!-- bottom: line left + ring right -->
+    <line x1="32" y1="82" x2="82" y2="82"/>
+    <circle cx="92" cy="82" r="10"/>
+  </g>
+</svg>