feat: add Redpanda and wp-deploy-coordinator to Legion

- Redpanda single-node StatefulSet in platform namespace
- wp-coordinator deployment consuming wp.deploy topic
- RBAC for coordinator to exec into harmonic-wordpress pods
- R2 credentials via ExternalSecret (no SSH key needed on coordinator)
- Sites config as ConfigMap — add new WP sites without code changes

servers/legion/k8s/wp-coordinator/configmap.yaml

@@ -0,0 +1,28 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: wp-coordinator-sites
+  namespace: platform
+data:
+  sites.yaml: |
+    sites:
+      harmonic-wordpress:
+        namespace: harmonic-wordpress
+        wordpress_selector: app=wordpress
+        mysql_selector: app=mysql
+        mysql_db: wordpress
+        git_repo: https://git.neuralplatform.ai/harmonic-framework/harmonic-framework.com.git
+        themes_src_path: wp-content/themes
+        themes_dst_path: /var/www/html/wp-content/themes
+        dev_url: https://dev.harmonic-framework.com
+        smoke_test_url: https://dev.harmonic-framework.com
+        db_sources:
+          staging:
+            host: "159.65.222.142"
+            db_name: wordpress_hf_hf_staging
+          production:
+            host: "159.65.222.142"
+            db_name: wordpress_hf
+        url_map:
+          staging: https://staging.harmonic-framework.com
+          production: https://harmonic-framework.com