fix(helm): add namespace: .Release.Namespace to all Helm templates

Without an explicit namespace in metadata, checkov (CKV_K8S_21) flags
every resource as using the default namespace. Using .Release.Namespace
lets helm install --namespace semantica --create-namespace correctly
scope all resources to the target namespace.

deploy/helm/knowledge-explorer/templates/configmap.yaml

@@ -2,6 +2,7 @@ apiVersion: v1
 kind: ConfigMap
 metadata:
   name: {{ include "knowledge-explorer.fullname" . }}
+  namespace: {{ .Release.Namespace }}
   labels:
     {{- include "knowledge-explorer.labels" . | nindent 4 }}
 data:

deploy/helm/knowledge-explorer/templates/deployment.yaml

@@ -2,6 +2,7 @@ apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: {{ include "knowledge-explorer.fullname" . }}
+  namespace: {{ .Release.Namespace }}
   labels:
     {{- include "knowledge-explorer.labels" . | nindent 4 }}
 spec:

deploy/helm/knowledge-explorer/templates/hpa.yaml

@@ -3,6 +3,7 @@ apiVersion: autoscaling/v2
 kind: HorizontalPodAutoscaler
 metadata:
   name: {{ include "knowledge-explorer.fullname" . }}
+  namespace: {{ .Release.Namespace }}
   labels:
     {{- include "knowledge-explorer.labels" . | nindent 4 }}
 spec:

deploy/helm/knowledge-explorer/templates/ingress.yaml

@@ -3,6 +3,7 @@ apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
   name: {{ include "knowledge-explorer.fullname" . }}
+  namespace: {{ .Release.Namespace }}
   labels:
     {{- include "knowledge-explorer.labels" . | nindent 4 }}
   {{- with .Values.ingress.annotations }}

deploy/helm/knowledge-explorer/templates/networkpolicy.yaml

@@ -3,6 +3,7 @@ apiVersion: networking.k8s.io/v1
 kind: NetworkPolicy
 metadata:
   name: {{ include "knowledge-explorer.fullname" . }}
+  namespace: {{ .Release.Namespace }}
   labels:
     {{- include "knowledge-explorer.labels" . | nindent 4 }}
 spec:

deploy/helm/knowledge-explorer/templates/service.yaml

@@ -2,6 +2,7 @@ apiVersion: v1
 kind: Service
 metadata:
   name: {{ include "knowledge-explorer.fullname" . }}
+  namespace: {{ .Release.Namespace }}
   labels:
     {{- include "knowledge-explorer.labels" . | nindent 4 }}
 spec: