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/supports-preserve-symlinks-flag/.eslintrc

@@ -0,0 +1,14 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"env": {
+		"browser": true,
+		"node": true,
+	},
+
+	"rules": {
+		"id-length": "off",
+	},
+}