Add ArgoCD GitOps bootstrap contract for railiance01

Define platform-owned AppProjects, root app-of-apps, repository registration
templates, and tenant onboarding docs so issue-core can deploy via ArgoCD.
Ignore encrypted repository secrets locally and cross-link OpenBao delivery
guidance with the new GitOps contract.

argocd/bootstrap/00-railiance-bootstrap-project.yaml

@@ -0,0 +1,22 @@
+apiVersion: argoproj.io/v1alpha1
+kind: AppProject
+metadata:
+  name: railiance-bootstrap
+  namespace: argocd
+  labels:
+    app.kubernetes.io/part-of: railiance-gitops
+    railiance-platform/component: gitops
+spec:
+  description: Platform-owned ArgoCD bootstrap project for Railiance app-of-apps.
+  sourceRepos:
+    - https://gitea.coulomb.social/coulomb/railiance-platform.git
+  destinations:
+    - server: https://kubernetes.default.svc
+      namespace: argocd
+  clusterResourceWhitelist: []
+  namespaceResourceWhitelist:
+    - group: argoproj.io
+      kind: Application
+  orphanedResources:
+    warn: true
+

argocd/bootstrap/01-railiance-tenants-project.yaml

@@ -0,0 +1,52 @@
+apiVersion: argoproj.io/v1alpha1
+kind: AppProject
+metadata:
+  name: railiance-tenants
+  namespace: argocd
+  labels:
+    app.kubernetes.io/part-of: railiance-gitops
+    railiance-platform/component: gitops
+spec:
+  description: Guardrails for Railiance tenant applications deployed by ArgoCD.
+  sourceRepos:
+    - https://gitea.coulomb.social/coulomb/*.git
+  destinations:
+    - server: https://kubernetes.default.svc
+      namespace: "*"
+  clusterResourceWhitelist:
+    - group: ""
+      kind: Namespace
+  namespaceResourceWhitelist:
+    - group: ""
+      kind: ConfigMap
+    - group: ""
+      kind: PersistentVolumeClaim
+    - group: ""
+      kind: Secret
+    - group: ""
+      kind: Service
+    - group: ""
+      kind: ServiceAccount
+    - group: apps
+      kind: Deployment
+    - group: apps
+      kind: StatefulSet
+    - group: autoscaling
+      kind: HorizontalPodAutoscaler
+    - group: batch
+      kind: CronJob
+    - group: batch
+      kind: Job
+    - group: external-secrets.io
+      kind: ExternalSecret
+    - group: networking.k8s.io
+      kind: Ingress
+    - group: networking.k8s.io
+      kind: NetworkPolicy
+    - group: traefik.io
+      kind: IngressRoute
+    - group: traefik.io
+      kind: Middleware
+  orphanedResources:
+    warn: true
+

argocd/bootstrap/10-railiance-apps-root.application.yaml

@@ -0,0 +1,26 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: railiance-apps-root
+  namespace: argocd
+  labels:
+    app.kubernetes.io/part-of: railiance-gitops
+    railiance-platform/component: gitops
+spec:
+  project: railiance-bootstrap
+  source:
+    repoURL: https://gitea.coulomb.social/coulomb/railiance-platform.git
+    targetRevision: main
+    path: argocd/applications
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: argocd
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=false
+      - ApplyOutOfSyncOnly=true
+      - PruneLast=true
+

argocd/bootstrap/kustomization.yaml

@@ -0,0 +1,7 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - 00-railiance-bootstrap-project.yaml
+  - 01-railiance-tenants-project.yaml
+  - 10-railiance-apps-root.application.yaml
+