docs(design): remove SVG, use PNG logo only

SVG icon is no longer in use. public/logo.png (1024x1024 RGBA) is
the single logo asset. DESIGN.md updated accordingly: SVG snippet
removed, wordmark pattern and <head> references updated to PNG.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

node_modules/autoprefixer/lib/hacks/text-decoration-skip-ink.js

@@ -0,0 +1,23 @@
+let Declaration = require('../declaration')
+
+class TextDecorationSkipInk extends Declaration {
+  /**
+   * Change prefix for ink value
+   */
+  set(decl, prefix) {
+    if (decl.prop === 'text-decoration-skip-ink' && decl.value === 'auto') {
+      decl.prop = prefix + 'text-decoration-skip'
+      decl.value = 'ink'
+      return decl
+    } else {
+      return super.set(decl, prefix)
+    }
+  }
+}
+
+TextDecorationSkipInk.names = [
+  'text-decoration-skip-ink',
+  'text-decoration-skip'
+]
+
+module.exports = TextDecorationSkipInk