- Fix RESOURCE_MIME_TYPE to match spec: "text/html;profile=mcp-app"
- Add CSP field to McpUiSandboxResourceReadyNotification type and schema
- Update basic-host to extract and pass CSP metadata from resources
- Update sandbox.ts to dynamically inject CSP meta tag into inner iframe
- Remove static CSP from sandbox.html (now dynamic based on resource metadata)
- Update QR server to use custom read_resource handler for _meta injection
- Update requirements.txt to require mcp[cli]>=1.23.3
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Co-authored-by: Claude <noreply@anthropic.com>
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