refactor(data): centralize site content

[georg-schwarz]

Summary

• Move data types into src/data-models to separate from actual data
• Move brand config into src/data so we have most configuration in the data folder
• Centralize page copy in data modules

[Copilot]

Pull request overview

Refactors the Astro site to centralize site copy/config under src/data/ and move shared type definitions into src/data-models/, updating pages/components/docs to consume these new modules.

Changes:

• Moved brand config imports from @/config/brand to @/data/brand across layouts/pages.
• Centralized page-level strings/labels into new src/data/* modules (home/about/blog/resources).
• Introduced src/data-models/* for shared TypeScript types and updated consumers accordingly.

Reviewed changes

Copilot reviewed 21 out of 22 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/pages/rss.xml.ts	Updates brand config import to new src/data/brand location.
src/pages/resources/index.astro	Replaces inline copy with RESOURCES_PAGE_CONTENT.
src/pages/resources/[...slug].astro	Uses centralized resource labels (updated/canonical/related).
src/pages/index.astro	Uses HOME_PAGE_CONTENT for hero/section/CTA copy.
src/pages/blog/index.astro	Uses BLOG_PAGE_CONTENT for title/empty state.
src/pages/about.astro	Uses ABOUT_PAGE_CONTENT and AboutSection model for section rendering.
src/layouts/BaseLayout.astro	Updates brand config import path.
src/data/resources.ts	Adds centralized resources page copy object.
src/data/home.ts	Moves Feature type to data-models and adds HOME_PAGE_CONTENT.
src/data/brand.ts	Updates SocialPlatform type import to data-models.
src/data/blog.ts	Adds centralized blog page copy object.
src/data/about.ts	Moves types to data-models and adds ABOUT_PAGE_CONTENT.
src/data-models/social.ts	Introduces SocialPlatform union type.
src/data-models/resources.ts	Introduces ResourcesPageContent interface.
src/data-models/home.ts	Introduces Feature and HomePageContent interfaces.
src/data-models/blog.ts	Introduces BlogPageContent interface.
src/data-models/about.ts	Introduces About page content + team member models.
src/components/features/Team.astro	Switches to shared TeamMember model import.
src/components/features/SocialLinks.astro	Switches to shared SocialPlatform model import.
README.md	Updates branding path + documents new site content pattern.
AGENTS.md	Updates branding path + documents new site content pattern.

Comments suppressed due to low confidence (1)

src/components/features/Team.astro:6

• TEAM_MEMBERS is typed as a readonly TeamMember[] (via satisfies readonly TeamMember[] in src/data/about.ts), but this component's prop expects a mutable TeamMember[]. In strict TS this makes <Team members={TEAM_MEMBERS} /> fail type-checking. Consider changing the prop to members: readonly TeamMember[] to accept both readonly and mutable arrays (matching the pattern used by SocialLinks).

export interface Props {
  members: TeamMember[];
  title?: string;

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[Waldleufer]

I like the separation of concerns 👍