Adds Create LINE Bot to the Boilerplates section, appended at the end of the list.

What it is: a scaffolder (npx create-line-bot my-bot) for LINE Messaging API bots on Next.js 16 App Router + Supabase + Vercel. MIT licensed, published on npm as create-line-bot.

What it covers that a plain Next.js starter does not: LINE gives a webhook five seconds to return 200 before it retries, so the template verifies the signature, writes one row, acks, and moves the work to a separate worker route via after(). On top of that it ships four idempotency layers (webhook event id, single-use reply token, job claim with FOR UPDATE SKIP LOCKED, business dedupe key), an idempotent Rich Menu uploader, and LIFF login whose ID token is verified server-side.

Checked against the contribution guidelines: single suggestion, title case, [Title Case Name](link) - Description. format, description capitalised and ended with a period, appended at the end of its section, no trailing whitespace.

Thanks for maintaining the list.