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- Post.cshtml.cs: load hero image, tag from SiteSettings in SetViewDataAsync - Post.cshtml: show <img> with hero image in .doc-avatar when set, fall back to emoji only if no image is configured - .doc-avatar: circular crop with object-fit:cover, gold border - doc-title now uses HeroTag from settings (not hardcoded) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>