Add fullscreen button to threejs-server

[ochafik]

Adds a fullscreen toggle button to the Three.js example app.

Changes

• Fullscreen button (top-right, appears on hover) with expand/collapse SVG icons
• Uses requestDisplayMode API to toggle between inline and fullscreen
• Syncs display mode from host context
• Escape key exits fullscreen
• CSS for button styling, hover effects, and fullscreen-specific adjustments
• Simplified wrapper: pass app instance directly as a prop instead of wrapping each method in useCallback

Only touches examples/threejs-server/ (3 files).

[pkg-pr-new]

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@modelcontextprotocol/ext-apps

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/ext-apps@446

@modelcontextprotocol/server-basic-react

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-basic-react@446

@modelcontextprotocol/server-basic-vanillajs

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-basic-vanillajs@446

@modelcontextprotocol/server-budget-allocator

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-budget-allocator@446

@modelcontextprotocol/server-cohort-heatmap

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-cohort-heatmap@446

@modelcontextprotocol/server-customer-segmentation

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-customer-segmentation@446

@modelcontextprotocol/server-map

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-map@446

@modelcontextprotocol/server-pdf

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-pdf@446

@modelcontextprotocol/server-scenario-modeler

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-scenario-modeler@446

@modelcontextprotocol/server-shadertoy

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-shadertoy@446

@modelcontextprotocol/server-sheet-music

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-sheet-music@446

@modelcontextprotocol/server-system-monitor

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-system-monitor@446

@modelcontextprotocol/server-threejs

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-threejs@446

@modelcontextprotocol/server-transcript

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-transcript@446

@modelcontextprotocol/server-video-resource

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-video-resource@446

@modelcontextprotocol/server-wiki-explorer

npm i https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/server-wiki-explorer@446

commit: 899d9e2

[ochafik]

/update-snapshots