feat: complete LOOP-WP-0000 bootstrap — reuse-surface capability D0

Register capability.coulomb-social.loop-orchestrate; validate passes.
Mark engagement bootstrap workplan done (8/8 tasks).

workplans/LOOP-WP-0000-engagement-bootstrap.md

@@ -4,7 +4,7 @@ type: workplan
 title: "Engagement bootstrap (registration, assessment, governance)"
 domain: coulomb_social
 repo: coulomb-loop
-status: active
+status: done
 owner: coulomb-loop
 topic_slug: coulomb_social
 supplier: kaizen-agentic
@@ -34,14 +34,14 @@ tasks:
     status: done
     title: Fill SCOPE.md and .claude/rules integration stubs
   - id: T08
-    status: todo
+    status: done
     title: Register reuse-surface capability entry for loop orchestration
 state_hub_workstream_id: "0df6df54-4313-4c2d-93f2-dc6844fe47ec"
 ---
 
 # LOOP-WP-0000 — Engagement Bootstrap
 
-**Status:** active
+**Status:** done
 **Owner:** coulomb-loop
 **Purpose:** One-time (and ongoing governance) setup before loop automation runs.
 
@@ -135,13 +135,13 @@ SCOPE.md and `.claude/rules/{repo-identity,architecture,repo-boundary,stack-and-
 
 ```task
 id: LOOP-WP-0000-T08
-status: todo
+status: done
 priority: low
 state_hub_task_id: "54f5e683-0081-4db1-abdb-4f57323f840e"
 ```
 
-Add capability row for fleet loop orchestration engagement (D0 scaffold).
-Run `reuse-surface validate` when entry drafted.
+`capability.coulomb_social.loop-orchestrate` at D0 in `registry/capabilities/`.
+Index updated; `reuse-surface validate` passes (2026-06-18).
 
 ## Definition of done