chore(workplan): add state_hub_task_ids to WP-0004

Written by fix-consistency: T01-T06 registered in state hub.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

workplans/RAIL-BS-WP-0004-safety-net.md

@@ -65,6 +65,7 @@ Restore procedure: `docs/backup-restore.md`.
 id: T01
 status: done
 priority: high
+state_hub_task_id: "4526a842-ea31-4874-9231-92ab556cfe7b"
 ```
 
 Update `tools/cmd/railiance-preflight` REPOS array: remove `railiance-bootstrap`,
@@ -81,6 +82,7 @@ add `railiance-infra`, `railiance-cluster`, `railiance-platform`,
 id: T02
 status: done
 priority: medium
+state_hub_task_id: "a6313e06-1976-46a7-8e31-df4eb2eca880"
 ```
 
 Update restore procedure: `railiance-bootstrap` → `railiance-cluster`,
@@ -96,6 +98,7 @@ Update restore procedure: `railiance-bootstrap` → `railiance-cluster`,
 id: T03
 status: done
 priority: medium
+state_hub_task_id: "05d42a55-921f-4aa7-bb76-e8af9c7e0ac3"
 ```
 
 Add to root Makefile so the safety net is discoverable from `make help`.
@@ -110,6 +113,7 @@ Add to root Makefile so the safety net is discoverable from `make help`.
 id: T04
 status: done
 priority: high
+state_hub_task_id: "08233868-d522-4117-bc4e-6c0f52545665"
 ```
 
 Run `bin/railiance backup` and confirm both DB and config files appear
@@ -125,6 +129,7 @@ in the Nextcloud file drop.
 id: T05
 status: todo
 priority: medium
+state_hub_task_id: "2d5acff7-4a4e-4ddd-ad06-08237ad3dac8"
 ```
 
 Confirm that the daily 02:00 cron job is installed and has run at least once:
@@ -149,6 +154,7 @@ If missing, install:
 id: T06
 status: todo
 priority: medium
+state_hub_task_id: "f8e4a094-c367-40eb-b895-da17bc144b07"
 ```
 
 Run the minimal restore drill from `docs/backup-restore.md` against the