STATE-WP-0069: schedule weekly legacy-meter review monitoring

Add legacy_meter_weekly_review state-hub resolver query, weekly activity
definition (Mon 08:30 Berlin), Railiance runtime projection, and progress
sink posting for STATE-WP-0069 retirement gating.

k8s/railiance/20-runtime.yaml

@@ -293,6 +293,41 @@ data:
     ---
 
     # ActivityDefinition: Phase 5 Stabilization Daily Check
+  weekly-legacy-meter-review.md: |
+    ---
+    id: weekly-legacy-meter-review
+    name: Weekly Legacy-Meter Review
+    type: activity-definition
+    version: "1.0"
+    enabled: true
+    owner: custodian
+    governance: custodian
+    status: active
+    created: "2026-07-08"
+    trigger:
+      type: cron
+      cron_expression: "30 8 * * 1"
+      timezone: Europe/Berlin
+      misfire_policy: skip
+    context_sources:
+      - type: state-hub
+        query: legacy_meter_weekly_review
+        required: true
+        params:
+          days: 7
+          evidence_sinks:
+            - type: state-hub-progress
+              event_type: legacy_meter_weekly_review
+              author: activity-core
+              workplan_id: 923bb94a-d16c-422c-b81e-16328bd7b60c
+        bind_to: context.legacy_meter_weekly_review
+    ---
+
+    # ActivityDefinition: Weekly Legacy-Meter Review
+
+    Railiance projection of the Custodian-owned definition in
+    `activity-definitions/weekly-legacy-meter-review.md`. Posts
+    `legacy_meter_weekly_review` progress for STATE-WP-0069 retirement gating.
   phase5-stabilization-closeout.md: |
     ---
     id: "e7d2b5a8-4c1f-4e9a-b6d3-8f2a1c4e6b09"