Normalize zero-duration external calendar events - #1832

Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: actions/checkout@v4, actions/setup-node@v4, codecov/codecov-action@v3. Actions will be forced to run with Node.js 24 by default starting June 2nd, 2026. Node.js 20 will be removed from the runner on September 16th, 2026. Please check if updated versions of these actions are available that support Node.js 24. To opt into Node.js 24 now, set the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable on the runner or in your workflow file. Once Node.js 24 becomes the default, you can temporarily opt out by setting ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Type number trivially inferred from a number literal, remove type annotation

Type number trivially inferred from a number literal, remove type annotation

'FrontmatterPropertyName' is defined but never used. Allowed unused vars must match /^_/u

'container' is assigned a value but never used. Allowed unused vars must match /^_/u

A `require()` style import is forbidden

Type number trivially inferred from a number literal, remove type annotation

Type number trivially inferred from a number literal, remove type annotation

Type number trivially inferred from a number literal, remove type annotation

Type boolean trivially inferred from a boolean literal, remove type annotation