Commit handoff-tree migration (track vs git rm --cached)

[RikepilB]

Problem

The handoff-system redesign moved old docs/session-reports/* and capital docs/HANDOFF.md into the new docs/handoff/ tree with plain mv. Those paths were git-tracked, so git status shows them as deleted while the content lives safely inside the (git-ignored) tree. AGENTS.md is also modified. Repo sits dirty on main.

Decision needed

• Option A — track the tree: whitelist docs/handoff/ in .gitignore, commit so old deletions record as renames; tree becomes shareable.
• Option B — local-only: git rm --cached the stale deleted paths to clean git status, keep the tree out of git.

Action

1. Pick A or B (see docs/handoff/_meta/LATER-TASKS.md).
2. Branch off main, commit the resolution (do NOT git checkout the deleted paths — restores duplicates).
3. Commit the AGENTS.md change with a clear message.

Acceptance

• git status clean on main
• No duplicate/old session-report files restored
• Decision recorded in handoff

Notes

Do NOT push directly to main/master — feature branch → PR.