feat(monitoring): enable Alertmanager (null receiver, longhorn PVC, az-a) + fix forgejo-rules ns forgejo->cicd — alerting delivery was disabled; forgejo PrometheusRule targeted a nonexistent namespace

k8s/bootstrap/phase3-forgejo/forgejo-values.yaml

@@ -14,6 +14,18 @@ valkey-cluster:
 redis:
   enabled: false
 
+# External SSH access for git over the LAN. The chart's ssh Service becomes a
+# LoadBalancer with a stable IP from the Cilium homelab-pool (192.168.1.160/28,
+# L2-announced) so `git clone ssh://[email protected]:2222/...` works from the
+# LAN. gitea's sshd listens on 2222 in-pod; port 2222 is exposed directly to
+# avoid needing privileged :22.
+service:
+  ssh:
+    type: LoadBalancer
+    port: 2222
+    annotations:
+      lbipam.cilium.io/ips: "192.168.1.161"
+
 gitea:
   admin:
     existingSecret: forgejo-admin
@@ -22,8 +34,10 @@ gitea:
     server:
       DOMAIN: forgejo.riotpiao.com
       ROOT_URL: https://forgejo.riotpiao.com
-      SSH_DOMAIN: forgejo.riotpiao.com
-      SSH_PORT: 22
+      # SSH clone URLs advertise git.riotpiao.com:2222 (the LoadBalancer above).
+      SSH_DOMAIN: git.riotpiao.com
+      SSH_PORT: 2222
+      SSH_LISTEN_PORT: 2222
       
     database:
       DB_TYPE: postgres