Compaction clears screen - can't scroll up to see previous context

Problem

When compaction happens, the screen clears and users can't scroll up to see the previous conversation context. This is disorienting - you lose visual continuity of what was just discussed.

Expected Behavior

Either:

• Preserve scroll history so users can scroll up
• Or show a summary of recent context after compaction

Impact

This is particularly frustrating when compaction happens mid-task and you need to reference something that was just shown (code snippets, decisions made, etc.).