Some way of inserting breaks into larger tasks

In a few places we have a long workshop we want to insert a break into in the morning, or something that should wrap around lunch.

Right now we have a mix of either:
1. Just repeating the exact same block twice with no context
2. Having a second block which has a title like "Workshop (Continued)"

Ideally we could encode this clearly in the metadata and automatically populate the post-break block with "Keep doing X" content, rather than needing either of these manual workarounds.

No file, test, or entry point is named. Start by locating the metadata and block-generation code used for workshop schedules, then determine how a task can span a break and generate continuation content. Done means long workshops can wrap around a break without manually duplicating blocks or adding “Continued” titles.

Written by the indexing model from the issue text.