Enable registry hygiene sweep after ACTIVITY-WP-0013 R2

Turn on coulomb-daily-registry-hygiene-sweep with runtime resolver
params; document live smoke (4 gaps) and issue-core emit follow-up.

activity-definitions/daily-registry-hygiene-sweep.md

@@ -1,10 +1,10 @@
 ---
 id: coulomb-daily-registry-hygiene-sweep
 name: Daily Registry Hygiene Sweep (coulomb-loop stabilize)
-enabled: false
+enabled: true
 owner: coulomb-loop
 governance: coulomb_social
-status: proposed
+status: active
 trigger:
   type: cron
   cron_expression: "0 7 * * *"
@@ -21,6 +21,9 @@ context_sources:
     params:
       roster: /home/worsch/coulomb-loop/loops/registry-hygiene/rollout.yaml
       batch_size: 3
+      round_robin_state: /home/worsch/coulomb-loop/loops/registry-hygiene/round-robin-state.json
+      reuse_surface_bin: /home/worsch/reuse-surface/.venv/bin/reuse-surface
+      runner_host: bnt-lap001
     bind_to: context.gaps
 ---
 
@@ -45,4 +48,5 @@ action:
   labels: ["fleet-hygiene", "coulomb-loop", "scope-analyst"]
 ```
 
-`enabled: false` until `reuse_surface_report_gaps` shell resolver exists in activity-core.
+Enabled 2026-06-18 after ACTIVITY-WP-0013 (`2078915`). Runtime params per
+activity-core R2 note `36ac3eeb` (reuse_surface_bin + runner_host).