Safer artifact sharing

Changed

• New artifacts can now be private or unlisted.
• Unlisted remains the default share mode.
• Public discovery and search indexing are not part of the sharing model.
• Older share links keep working without making them discoverable.

Added

• Share pages now stay inside BinHTML viewer chrome.
• Artifact share pages tell search engines not to index, follow, or archive them.
• A report-abuse surface is available from shared artifact pages.
• Pricing, API docs, MCP docs, and OpenAPI examples now match the private/unlisted sharing model.

Why it matters

BinHTML is built for sharing AI-generated HTML artifacts, not for publishing standalone public websites. This keeps links easy to share while reducing brand, spam, and impersonation risk.