chore: consolidate example app gitignores into root

.gitignore

@@ -1,18 +1,35 @@
 # Dependencies
 node_modules/
+.pnp
 .pnp.*
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/versions
 
 # Output
 dist/
+build/
+out/
 coverage/
 *.tsbuildinfo
 
+# Next.js
+.next/
+next-env.d.ts
+
 # Logs
 npm-debug.log*
 pnpm-debug.log*
 yarn-debug.log*
 yarn-error.log*
 
 # Env
-.env
-.env.*
+.env*
+!.env.example
+
+# Misc
+.DS_Store
+*.pem
+.vercel

examples/scripts/generate-example.mjs

@@ -1,7 +1,38 @@
-import { cp, rm, mkdir } from "node:fs/promises";
+import { cp, rm, mkdir, writeFile } from "node:fs/promises";
 import { execSync } from "node:child_process";
 import { resolve } from "node:path";
 
+const GITIGNORE = `# dependencies
+node_modules
+
+# build output
+dist
+build
+out
+.next
+
+# env files
+.env*
+!.env.example
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts
+
+# editor
+.DS_Store
+*.pem
+
+# debug logs
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+
+# deployment
+.vercel
+`;
+
 const EVM_APPS = ["react-evm", "nextjs-evm"];
 const SVM_APPS = ["react-svm", "nextjs-svm"];
 
@@ -17,6 +48,8 @@ async function generate(app) {
         filter: (source) => !source.includes("node_modules") && !source.includes(".next"),
     });
 
+    await writeFile(resolve(out, ".gitignore"), GITIGNORE);
+
     // Seed .env from .env.example so Next.js prerendering has the required env vars.
     // push-example.sh uses `git add -A` which respects .gitignore, so .env won't be published.
     await cp(resolve(out, ".env.example"), resolve(out, ".env"));