feat: add calendar tool to context menu and keyboard shortcuts

- Add Calendar to Create Tool submenu in context menu
- Add Calendar to keyboard shortcuts dialog

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/ui/CustomContextMenu.tsx

@@ -145,6 +145,7 @@ export function CustomContextMenu(props: TLUiContextMenuProps) {
           <TldrawUiMenuItem {...tools.Multmux} />
           */}
           <TldrawUiMenuItem {...tools.Map} />
+          <TldrawUiMenuItem {...tools.calendar} />
           <TldrawUiMenuItem {...tools.SlideShape} />
           <TldrawUiMenuItem {...tools.VideoChat} />
           <TldrawUiMenuItem {...tools.FathomMeetings} />

src/ui/components.tsx

@@ -1694,6 +1694,7 @@ export const components: TLComponents = {
       tools["ImageGen"],
       // tools["VideoGen"], // Temporarily hidden
       tools["Multmux"],
+      tools["calendar"],
       // MycelialIntelligence moved to permanent floating bar
     ].filter(tool => tool && tool.kbd)