## Why
Compaction prompts omitted recorded Code Mode tool calls, leaving them without the nested tool inventory available to normal sampling requests.
## What changed
- Attach pending and retained Code Mode tool metadata to local and remote v2 compaction prompts, including updated result metadata and completeness markers.
- Bound Code Mode metadata separately while preserving captured direct tool records.
- Keep observations omitted from shortened compaction retries available if compaction fails and normal sampling resumes.
## Testing
Add regression coverage for metadata attachment, retry retention, independent budgeting, and binding validation. Extend local and remote compaction tests to check tool inventories with metadata enabled and disabled.
GitOrigin-RevId: 1dc012bd5838797c605d981a8fc1b0378a142227
20f4d12f76