Fetch branding

[AHarmlessPyro]

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Note

Low Risk
Low risk: this is a TypeScript type-surface expansion (no runtime logic) plus a patch version bump, with the main risk being downstream compile-time incompatibilities for consumers relying on narrower unions.

Overview
Adds first-class branding extraction support to the Fetch type surface by introducing BrandingProfile (and related styling/personality/design-system types) and exposing it from src/types/index.ts.

Extends fetch output and response typings to include branding via a new FetchOutputBranding format and optional branding?: BrandingProfile fields on PageData and FetchResponseData. Also bumps the package version to 0.89.5.

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[devin-ai-integration]

Devin Review found 1 potential issue.

⚠️ 1 issue in files not directly in the diff

⚠️ FetchOutputBranding not exported from types index (src/types/index.ts:280)

FetchOutputBranding is defined in src/types/web/common.ts:67-69 but is not re-exported from src/types/index.ts. Every other FetchOutput* interface (FetchOutputMarkdown, FetchOutputHtml, FetchOutputLinks, FetchOutputScreenshot, FetchOutputJson) is exported at src/types/index.ts:275-280. SDK consumers importing from @hyperbrowser/sdk/types won't have access to the FetchOutputBranding type.

View 1 additional finding in Devin Review.