types incorrectly specify accessToken as a required property of the FigspecConfig interface

[Oaphi]

Affected design types

• figma
• figspec
• link
• image
• iframe

Describe the bug

As of the latest version (10.0.1 ATTOW), type definitions provided for the config specify accessToken as a required property when using the figspec parameter type:

interface FigspecConfig extends ConfigBase {
    type: "figspec" | "experimental-figspec";
    url: string;
    accessToken: string;
}

While the token is needed, it's possible to provide the token via the STORYBOOK_FIGMA_ACCESS_TOKEN environment variable as per the addon's docs (confirmed working as expected), which makes explictly providing accessToken via the config unnecessary:

Given the above, the interface should mark the accessToken property as optional and provide a JSDoc note that if not provided, the STORYBOOK_FIGMA_ACCESS_TOKEN must be set:

interface FigspecConfig extends ConfigBase {
    type: "figspec" | "experimental-figspec";
    url: string;
    /**
     * Figma Personal Access Token required for Figma's REST API.
     * If not provided, `STORYBOOK_FIGMA_ACCESS_TOKEN` environment variable must be set
     */
    accessToken?: string;
}

How to reproduce the bug?

Reproducible by any project attempting to use a config satisfying the FigspecConfig interface's shape.

Example TypeScript playground: https://tsplay.dev/NrkJ0m

Can set up a reproduction repository if need be, but it seems like an overkill for the issue at hand

Expected behaviour

accessToken to be an optional property of the FigspecConfig interface

Environment

• Chrome / Chromium / Chromium based browsers
• Firefox
• macOS Safari
• iOS Safari
• Samsung Internet
• Other

Affected versions

10.0.1

Storybook versions

9.0.16