Port the useful part of PR #588 onto current main without regressing
summary role alternation or the centralized call_llm-based summary path.
This adds a prune-first compression pass that:
- protects recent tool outputs with adaptive thresholds
- never prunes key tool outputs like read_file/memory/clarify
- skips the LLM summary call entirely when pruning alone is enough
- keeps head/tail protected windows untouched
Tests cover prune-only compaction, protected tools, and tail protection.
Co-authored-by: teyrebaz33 <hakanerten02@hotmail.com>
teyrebaz33
119bad65fc