feat: add cloudflare worker full example (#1521)

.changeset/strong-mice-dance.md

apps/next/src/content/docs/llamaindex/setup/cloudflare.mdx

e2e/examples/cloudflare-hono/.gitignore

e2e/examples/cloudflare-hono/package.json

e2e/examples/cloudflare-hono/src/index.ts

e2e/examples/cloudflare-hono/tsconfig.json

e2e/examples/cloudflare-hono/worker-configuration.d.ts

e2e/examples/cloudflare-hono/wrangler.toml

packages/env/src/als/index.workerd.ts

packages/env/src/index.workerd.ts

pnpm-lock.yaml

tsconfig.json