v2.40.0 — opt-in widget padding and a minified Worker

Highlights:

• feat(widget): new opt-in --garrul-padding theming var adds inner padding to the widget (single length only, e.g. 16px). The name field and form options now sit inside the composer card.
• chore(wrangler): wrangler.example.toml now sets minify = true (about a third smaller upload, no behavior change). npm run upgrade does not sync wrangler.toml keys — add the line to your own wrangler.toml by hand.
• fix(seed-demo): npm run seed-demo re-runs cleanly; it clears comment child rows before re-seeding.

Notes:

• Drop-in upgrade: no new env vars, no migrations.
• If you serve from a custom domain, set workers_dev = false (and preview_urls = false) in wrangler.toml so the workers.dev hostname is not public.