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/tailwindcss/lib/util/parseBoxShadowValue.js

@@ -0,0 +1,88 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+function _export(target, all) {
+    for(var name in all)Object.defineProperty(target, name, {
+        enumerable: true,
+        get: all[name]
+    });
+}
+_export(exports, {
+    parseBoxShadowValue: function() {
+        return parseBoxShadowValue;
+    },
+    formatBoxShadowValue: function() {
+        return formatBoxShadowValue;
+    }
+});
+const _splitAtTopLevelOnly = require("./splitAtTopLevelOnly");
+let KEYWORDS = new Set([
+    "inset",
+    "inherit",
+    "initial",
+    "revert",
+    "unset"
+]);
+let SPACE = /\ +(?![^(]*\))/g // Similar to the one above, but with spaces instead.
+;
+let LENGTH = /^-?(\d+|\.\d+)(.*?)$/g;
+function parseBoxShadowValue(input) {
+    let shadows = (0, _splitAtTopLevelOnly.splitAtTopLevelOnly)(input, ",");
+    return shadows.map((shadow)=>{
+        let value = shadow.trim();
+        let result = {
+            raw: value
+        };
+        let parts = value.split(SPACE);
+        let seen = new Set();
+        for (let part of parts){
+            // Reset index, since the regex is stateful.
+            LENGTH.lastIndex = 0;
+            // Keyword
+            if (!seen.has("KEYWORD") && KEYWORDS.has(part)) {
+                result.keyword = part;
+                seen.add("KEYWORD");
+            } else if (LENGTH.test(part)) {
+                if (!seen.has("X")) {
+                    result.x = part;
+                    seen.add("X");
+                } else if (!seen.has("Y")) {
+                    result.y = part;
+                    seen.add("Y");
+                } else if (!seen.has("BLUR")) {
+                    result.blur = part;
+                    seen.add("BLUR");
+                } else if (!seen.has("SPREAD")) {
+                    result.spread = part;
+                    seen.add("SPREAD");
+                }
+            } else {
+                if (!result.color) {
+                    result.color = part;
+                } else {
+                    if (!result.unknown) result.unknown = [];
+                    result.unknown.push(part);
+                }
+            }
+        }
+        // Check if valid
+        result.valid = result.x !== undefined && result.y !== undefined;
+        return result;
+    });
+}
+function formatBoxShadowValue(shadows) {
+    return shadows.map((shadow)=>{
+        if (!shadow.valid) {
+            return shadow.raw;
+        }
+        return [
+            shadow.keyword,
+            shadow.x,
+            shadow.y,
+            shadow.blur,
+            shadow.spread,
+            shadow.color
+        ].filter(Boolean).join(" ");
+    }).join(", ");
+}