[aicayzer]

Summary

The calendar guide now says how from and to are read: a time with no zone is UTC, a date with no time is its midnight in UTC, an offset or Z is honored, and a non-ISO 8601 string or a date that does not exist is refused 400 validation_error naming the bound. This follows withmarfa/marfa#2486.

Changes

• content/docs/build/list-filter-search.mdx: one paragraph under "Read a calendar".

Testing

• Not run: pnpm test (the content lint) and a build; the worktree has no installed dependencies. The change is one paragraph of prose.

Notes for reviewers

• Merge after the marfa pull request that makes the server behave this way. The generated API reference text for from and to changes at the next sync from marfa; nothing is edited by hand here.
• Pages searched for window bounds: no other page describes them.

Checklist

• The title is a scoped Conventional Commit.
• No test needed; the reason is above.
• The pages around the change still say what is true.