BACK-040: Static Content API

[Function-0]

Epic: Epic 5 - Content Management & Static Pages

User Story: As a backend developer, I need to create endpoints for static content pages for legal/info pages

Acceptance Criteria:

• GET /api/content/:slug endpoint
• Content storage (database or markdown files)
• Admin-only POST/PATCH endpoints
• Version control for content
• Support for HTML/Markdown

Size: S
Priority: P2
Discipline: Backend