Agreed with everything you say here. Really want there to be a go-to Rails-like framework for JS, but nothing has reached that point yet.
I'm very bullish on SvelteKit — hits all the points you mention above and outputs a minimal, performant full-stack app. https://kit.svelte.dev/ Still in beta and changing a lot but really really lovely to use.
Heck, to scratch my own itch I'm even making a Rails-like SaaS boilerplate to go on top of SvelteKit to give me all models, user auth, admin dashboards, payments, etc that you need in almost every app these days: https://sveltesaas.com
I'm very bullish on SvelteKit — hits all the points you mention above and outputs a minimal, performant full-stack app. https://kit.svelte.dev/ Still in beta and changing a lot but really really lovely to use.
Heck, to scratch my own itch I'm even making a Rails-like SaaS boilerplate to go on top of SvelteKit to give me all models, user auth, admin dashboards, payments, etc that you need in almost every app these days: https://sveltesaas.com