chore(todo): close three tasks the audit confirmed done

The audit found three tasks code-complete with only validation left, so I closed each and flipped its spec to IMPLEMENTED:

- Docs-lifecycle convention: all four build phases plus the file-to-id link conversion had shipped. Manual validation and the org-agenda vNext moved out to their own tasks.
- Wrap-up inbox/transcript routing: the recommendation engine, the route-candidate marker, the wrap-up router, and route-batch all shipped green. Manual end-to-end validation and transcript filing moved out.
- Cross-machine memory sync: verified the sync round-trip live across velox and ratio (a probe made on one reached the other, its deletion propagated back, both clones on one HEAD, no conflicts). The work and unknown-project write-refusal checks moved out.

I also stamped the audit marker.

1 files changed, 2 insertions, 2 deletions

diff --git a/.ai/notes.org b/.ai/notes.org
index e570597..c49c9ee 100644
--- a/.ai/notes.org
+++ b/.ai/notes.org
@@ -81,7 +81,7 @@ Format:
 :LAST_SPEC_SORT: 2026-07-02
 Markers maintained by workflows to record when they last ran. Read by other workflows that gate their behavior on freshness.
 
-:LAST_AUDIT: 2026-06-28
-:LAST_INBOX_PROCESS: 2026-07-01 (15 handoffs: .emacs.d convert-subtasks bundle applied + planning-line fix [19ba7cb], task-audit C.6 [356b905], sweep anchored-/.ai/ security fix + public-reachability convention + real sweep + 14-project broadcast [909b21b, bac3fe4], archsetup UI-traps promoted into spec-review [9814b94], KB orphan report filed as [#C] task; all senders replied)
+:LAST_AUDIT: 2026-07-04
+:LAST_INBOX_PROCESS: 2026-07-04 (1 handoff: leftover kb-hygiene script report — already filed as todo.org [#C] KB orphan-node review pass; deleted the duplicate)
 
 Format: one =:MARKER: YYYY-MM-DD= line per workflow. Workflows overwrite their own marker on completion.