Follow-ups on top of #64731's cwd/git_repo_root inheritance:
- git_branch joins the parent-row backfill (same NULL-only COALESCE hop):
the Desktop sidebar branch chip otherwise vanishes at every compaction
boundary even though the workspace didn't change.
- Belt-and-suspenders for #59527: compression forks (parent already ended
with end_reason='compression') also inherit the gateway origin columns
(user_id/session_key/chat_id/chat_type/thread_id/display_name/
origin_json) at DB-level child creation. The gateway re-records the peer
after rotation (d5b4879d4), but a hard crash in the window between child
creation and that write left the child unrecoverable by
find_latest_gateway_session_for_peer. Scoped to compression forks only —
delegate/subagent children (parent still live) must NOT inherit routing
keys, or peer recovery could repoint gateway traffic into a subagent's
session.
- Behavioral test driving the real _compress_context rotation path,
asserting the child row carries cwd/git_repo_root/git_branch and the
origin columns.
Teknium
75099ca0ef