feat: Create Bun.sh adapter (#757)

This creates an Arcjet SDK adapter for [bun.sh](https://bun.sh/). This was much the same as the Node.js adapter, but I needed to introduce a new API to the adapter: `aj.handler()`. This API is used to wrap the request handler (called `fetch()` in Bun) to do some preprocessing on the request—in this case looking up the IP with `server.requestIP(request)` before storing it in a WeakMap.

Users *could* use this without using the `aj.handler()` function, but they'd need to have a proper IP existing in the headers, such as the `Fly-Client-IP` on fly.io; however, those won't exist when running locally and the `protect()` call will error without using `aj.handler()`.

TODO:
- [x] Add to CI and dependabot
- [x] SDK Stack in protobuf
- [x] Examples

Closes #475

.github/dependabot.yml

@@ -25,6 +25,46 @@ updates:
 
   # Dependencies in our examples
 
+  # Bun isn't supported by Dependabot so any changes to a Bun example require us
+  # to run `bun install` within the Dependabot branch to update the lockfile.
+  # Ref: https://github.com/dependabot/dependabot-core/issues/6528
+  - package-ecosystem: npm
+    directory: /examples/bun-hono-rl
+    schedule:
+      # Our dependencies should be checked daily
+      interval: daily
+    assignees:
+      - blaine-arcjet
+    reviewers:
+      - blaine-arcjet
+    commit-message:
+      prefix: deps(example)
+      prefix-development: deps(example)
+    groups:
+      dependencies:
+        patterns:
+          - "*"
+
+  # Bun isn't supported by Dependabot so any changes to a Bun example require us
+  # to run `bun install` within the Dependabot branch to update the lockfile.
+  # Ref: https://github.com/dependabot/dependabot-core/issues/6528
+  - package-ecosystem: npm
+    directory: /examples/bun-rl
+    schedule:
+      # Our dependencies should be checked daily
+      interval: daily
+    assignees:
+      - blaine-arcjet
+    reviewers:
+      - blaine-arcjet
+    commit-message:
+      prefix: deps(example)
+      prefix-development: deps(example)
+    groups:
+      dependencies:
+        patterns:
+          - "*"
+
   - package-ecosystem: "npm"
     directory: /examples/nextjs-14-app-dir-rl
     schedule:

README.md

@@ -147,6 +147,7 @@ find a specific one through the categories and descriptions below.
 
 - [`@arcjet/next`](./arcjet-next/README.md): SDK for the Next.js framework.
 - [`@arcjet/node`](./arcjet-node/README.md): SDK for Node.js.
+- [`@arcjet/bun`](./arcjet-bun/README.md): SDK for Bun.sh.
 
 ### Analysis
 

arcjet-bun/.eslintignore

@@ -0,0 +1,6 @@
+/.turbo/
+/coverage/
+/node_modules/
+*.d.ts
+*.js
+!*.config.js

arcjet-bun/.eslintrc.cjs

@@ -0,0 +1,4 @@
+module.exports = {
+  root: true,
+  extends: ["@arcjet/eslint-config"],
+};

arcjet-bun/.gitignore

@@ -0,0 +1,135 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+web_modules/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional stylelint cache
+.stylelintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variable files
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+out
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# vuepress v2.x temp and cache directory
+.temp
+.cache
+
+# Docusaurus cache and generated files
+.docusaurus
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# yarn v2
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
+
+# Generated files
+index.js
+index.d.ts
+test/*.js