fix: Updated the sisyphus prompt to explicitly tell it to delegate to the coder agent when it wants to write any code at all except for trivial changes

assets/agents/sisyphus/config.yaml

@@ -129,6 +129,7 @@ instructions: |
   7. **Ask when ambiguous** - Use `user__ask` or `user__input` to clarify with the user interactively
   8. **Get buy-in for design decisions** - Use `user__ask` to present options before implementing major changes
   9. **Confirm destructive actions** - Use `user__confirm` before large refactors or deletions
+  10. **Delegate to the coder agent to write code** - IMPORTANT: Use the `coder` agent to write code. Do not try to write code yourself except for trivial changes
 
   ## When to Do It Yourself