BINKY-WP-0004-T01: kaizen schedule opt-in + executor ownership decision

- .kaizen/schedule.yml scaffolded via schedule init, validates clean
  (coach + optimization weekly, tdd-workflow disabled)
- DEC-2026-002 prepared: executor worker in a new small repo, per
  ADR-005 boundaries; fallback allows sandbox prototype, no cutover
  before resolution
- Decision rationale recorded in the executor assessment

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

workplans/BINKY-WP-0004-workstation-independent-executor.md

@@ -2,6 +2,7 @@
 id: BINKY-WP-0004
 title: "Workstation-Independent Executor"
 status: active
+state_hub_workstream_id: "b800f91d-a377-45ec-8ff3-6e763c524dff"
 ---
 
 Remove the workstation from the autopilot loop. Successor to BINKY-WP-0003,
@@ -25,8 +26,9 @@ schedule file committed. Green/Blue lane.
 
 ```task
 id: BINKY-WP-0004-T01
-status: todo
+status: done
 priority: high
+state_hub_task_id: "5741487d-2022-4ed6-b4ad-8db745cb90f4"
 ```
 
 ## Task: binky_rhythm_status resolver in activity-core
@@ -42,6 +44,7 @@ or direct PR in that repo per its governance. Green lane (code + tests).
 id: BINKY-WP-0004-T02
 status: todo
 priority: high
+state_hub_task_id: "b44af058-22e4-4d63-a28c-8f6c69d65ea1"
 ```
 
 ## Task: OpenBao lanes for the executor worker
@@ -59,6 +62,7 @@ Catalog metadata only; any new secret provisioning is founder Red lane.
 id: BINKY-WP-0004-T03
 status: todo
 priority: medium
+state_hub_task_id: "e4740aa0-94f7-4ebe-9217-aaca3ef902cc"
 ```
 
 ## Task: Executor worker MVP — one task end-to-end on Railiance
@@ -75,6 +79,7 @@ Blue lane; deployment location Railiance.
 id: BINKY-WP-0004-T04
 status: todo
 priority: high
+state_hub_task_id: "3cb36d02-9934-4c80-81dd-589e7725e407"
 ```
 
 ## Task: Recurring mailbox scan through the executor
@@ -89,6 +94,7 @@ log). Blue lane.
 id: BINKY-WP-0004-T05
 status: todo
 priority: medium
+state_hub_task_id: "2fd2f523-5bd6-400f-abc1-45d3b0a8fcec"
 ```
 
 ## Task: Cut over — enable Binky definitions, retire the cron bridge
@@ -103,4 +109,5 @@ re-add the cron line. Blue lane with founder notification at cutover.
 id: BINKY-WP-0004-T06
 status: todo
 priority: medium
+state_hub_task_id: "eb8c9860-49b4-4d9e-b242-fff48b2ef603"
 ```