fix: evolution.patch has no apply-validation step in CI or evolve.sh (#866)

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

.woodpecker/ci.yml

@@ -82,6 +82,25 @@ steps:
           fi
         '
 
+  - name: validate-evolution-patch
+    image: registry.niovi.voyage/harb/node-ci:latest
+    when:
+      - event: pull_request
+        path:
+          include:
+            - onchain/**
+            - tools/push3-evolution/**
+    commands:
+      - |
+        bash -c '
+          set -euo pipefail
+          if ! git apply --check tools/push3-evolution/evolution.patch; then
+            echo "ERROR: evolution.patch needs regeneration — see tools/push3-evolution/evolution.conf" >&2
+            exit 1
+          fi
+          echo "evolution.patch applies cleanly."
+        '
+
   - name: node-quality
     image: registry.niovi.voyage/harb/node-ci:latest
     environment: