Migration guide for Root v3.0

With the release of Root v3.0, we upgraded our main 3rd party deps to the latest versions. This update comes an update to Vite 8, which migrates its bundler from Rollup to a full Rust-based rebuild with Rolldown. We've also graduated Root AI from "experimental" with new config optiosn for it.

Vite config updates

Applies to v3.0.0 and above

Vite has been updated to v8. See Vite's migration guide for more details.

A few items in particular to note:

`rollupOptions` is now `rolldownOptions`

Root will automatically rename the rollupOptions to rolldownOptions but in editors like VS Code you will see a deprecation warning. To migrate, rename:

⏪ Before:

/** root.config.ts */

import {defineConfig} from '@blinkk/root';

export default defineConfig({
  vite: {
    build: {rollupOptions: {...}}
  },
});

⏩ After:

/** root.config.ts */

import {defineConfig} from '@blinkk/root';

export default defineConfig({
  vite: {
    build: {rolldownOptions: {...}}
  },
});

Root AI out of experimental

The Root AI configuration has graduated from "experimental". The new config format supports a greater range of LLM providers.

Update `experiments.ai` to the new top-level `ai` config