feat(basic-host): improve host UI with collapsible panels and SDK types (#244)

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* refactor(basic-host): use SDK types for ModelContext and AppMessage

- Import McpUiUpdateModelContextRequest and McpUiMessageRequest from SDK
- Replace custom ModelContext with McpUiUpdateModelContextRequest['params']
- Replace custom AppMessage with McpUiMessageRequest['params']
- Pass full message params instead of extracting text
- Format messages by extracting text from content blocks in display

* feat(basic-host): handle non-text content blocks in display

- Add formatContentBlock helper for text, image, audio, resource types
- Show placeholders like <image: image/png> for non-text content
- Apply to both messages and model context display

* test: update shadertoy screenshot

* test: update screenshots from CI (linux x64)

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Olivier Chafik 2026-01-12 19:42:11 +00:00 • committed by GitHub

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