feat(entropy-explorer): add initial build of entropy explorer

This is an initial build of the new Entropy Explorer app, to replace the old
Entropy Debugger app.  It's mostly ready, with the following exceptions:

1. The data is currently mock data, and will need to be replaced with live APIs.
2. We should add some error payload parsing to the details drawer.
3. Not all chains are currently added (Viem doesn't have chain metadata for all
   the chains we support and I want to get this merged and the UI figured out
   before I worry about ensuring the chain metadata is correct)

Author: cprussin

apps/entropy-explorer/.gitignore

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+.env*.local

apps/entropy-explorer/.prettierignore

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+.next/
+coverage/
+node_modules/
+*.tsbuildinfo
+.env*.local
+.env
+.DS_Store

apps/entropy-explorer/eslint.config.js

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+export { nextjs as default } from "@cprussin/eslint-config";

apps/entropy-explorer/jest.config.js

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+export { nextjs as default } from "@cprussin/jest-config/next";

apps/entropy-explorer/next-env.d.ts

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+/// <reference types="next" />
+/// <reference types="next/image-types/global" />
+
+// NOTE: This file should not be edited
+// see https://nextjs.org/docs/app/api-reference/config/typescript for more information.

apps/entropy-explorer/next.config.js

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+const config = {
+  reactStrictMode: true,
+
+  pageExtensions: ["ts", "tsx", "mdx"],
+
+  logging: {
+    fetches: {
+      fullUrl: true,
+    },
+  },
+
+  webpack(config) {
+    config.module.rules.push({
+      test: /\.svg$/i,
+      use: ["@svgr/webpack"],
+    });
+
+    config.resolve.extensionAlias = {
+      ".js": [".js", ".ts", ".tsx"],
+    };
+
+    return config;
+  },
+
+  headers: async () => [
+    {
+      source: "/:path*",
+      headers: [
+        {
+          key: "X-XSS-Protection",
+          value: "1; mode=block",
+        },
+        {
+          key: "Referrer-Policy",
+          value: "strict-origin-when-cross-origin",
+        },
+        {
+          key: "Strict-Transport-Security",
+          value: "max-age=2592000",
+        },
+        {
+          key: "X-Content-Type-Options",
+          value: "nosniff",
+        },
+        {
+          key: "Permissions-Policy",
+          value:
+            "vibrate=(), geolocation=(), midi=(), notifications=(), push=(), sync-xhr=(), microphone=(), camera=(), magnetometer=(), gyroscope=(), speaker=(), vibrate=(), fullscreen=self",
+        },
+      ],
+    },
+  ],
+};
+export default config;

apps/entropy-explorer/package.json

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+{
+  "name": "@pythnetwork/entropy-explorer",
+  "version": "0.0.0",
+  "private": true,
+  "type": "module",
+  "engines": {
+    "node": "22"
+  },
+  "scripts": {
+    "build:vercel": "next build",
+    "fix:format": "prettier --write .",
+    "fix:lint:eslint": "eslint --fix .",
+    "fix:lint:stylelint": "stylelint --fix 'src/**/*.scss'",
+    "pull:env": "[ $CI ] || VERCEL_ORG_ID=team_BKQrg3JJFLxZyTqpuYtIY0rj VERCEL_PROJECT_ID=prj_TBkf9EyQjQF37gs4Vk0sQKJj97kE vercel env pull",
+    "start:dev": "next dev --port 3006",
+    "start:prod": "next start --port 3006",
+    "test:format": "prettier --check .",
+    "test:lint:eslint": "eslint . --max-warnings 0",
+    "test:lint:stylelint": "stylelint 'src/**/*.scss' --max-warnings 0",
+    "test:types": "tsc"
+  },
+  "dependencies": {
+    "@phosphor-icons/react": "catalog:",
+    "@pythnetwork/component-library": "workspace:*",
+    "clsx": "catalog:",
+    "connectkit": "catalog:",
+    "next": "catalog:",
+    "nuqs": "catalog:",
+    "react": "catalog:",
+    "react-aria": "catalog:",
+    "react-dom": "catalog:",
+    "viem": "catalog:",
+    "wagmi": "catalog:",
+    "zod": "catalog:"
+  },
+  "devDependencies": {
+    "@cprussin/eslint-config": "catalog:",
+    "@cprussin/jest-config": "catalog:",
+    "@cprussin/prettier-config": "catalog:",
+    "@cprussin/tsconfig": "catalog:",
+    "@svgr/webpack": "catalog:",
+    "@types/jest": "catalog:",
+    "@types/node": "catalog:",
+    "@types/react": "catalog:",
+    "@types/react-dom": "catalog:",
+    "autoprefixer": "catalog:",
+    "eslint": "catalog:",
+    "jest": "catalog:",
+    "postcss": "catalog:",
+    "prettier": "catalog:",
+    "sass": "catalog:",
+    "stylelint": "catalog:",
+    "stylelint-config-standard-scss": "catalog:",
+    "typescript": "catalog:",
+    "vercel": "catalog:"
+  }
+}

apps/entropy-explorer/prettier.config.js

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+export { base as default } from "@cprussin/prettier-config";