Add automatic post expression profiles for cards and single posts

[georgeolaru]

Summary

Add automatic post expression profiles to Anima so native Post Formats plus derived media traits drive archive cards and single-post rendering without adding manual override UI.

Scope

• native Post Formats support for quote, image, gallery, link, audio, video
• theme-side expression resolver with request-level caching
• Nova card integration through a narrow pre-render hook
• single-post expression shell for automatic quote/visual/media/default rendering
• Hive LT styling and verification on the Hive LT Studio site

Related

Depends on the Nova Blocks pre-render hook issue.