feat(fc-network): add FlowerCore.Network app (read-only pfSense plane, ADR-189)

Stand up the pfSense automation plane (Phase 0, read-only) on RKE2 as an
ArgoCD-managed workload at network.iamworkin.lan.

- namespace fc-network
- Deployment fc-network-web: localhost/fc-network-web:v20260612-0b5b049,
  imagePullPolicy Never, port 5340, /healthz probes, runAsNonRoot 1654 +
  readOnlyRootFilesystem, RWO-safe RollingUpdate (maxSurge 0/maxUnavailable 1),
  auth gate-OFF, SQLite + snapshot-store + intended-model paths under /data.
- PVC fc-network-web-data (longhorn, 2Gi): SQLite index + on-box snapshot store
  (full-fidelity raw config.xml stays on-box; service surfaces redacted only).
- Service (ClusterIP 80 -> 5340), Certificate (ClusterIssuer step-ca-acme),
  IngressRoute (network.iamworkin.lan, all methods — POST ingest is local-only).
- kustomization.yaml for local previews / single-app validation.

The ApplicationSet git generator picks this up as infra-fc-network; if it lags,
the Application is applied manually (documented pattern).

apps/fc-network/certificate-web.yaml

@@ -0,0 +1,33 @@
+# Certificate for network.iamworkin.lan.
+#
+# Preflight gate: network.iamworkin.lan must resolve to 10.0.56.200 before this
+# Certificate is synced. step-ca ACME cannot see the CoreDNS wildcard
+# (*.iamworkin.lan -> 10.0.56.200) — it does an HTTP-01 challenge against the
+# resolved host. The CoreDNS wildcard template covers network.iamworkin.lan, so
+# resolution exists fleet-wide; do NOT add a pfSense DNS override (this plane is
+# read-only and holds no pfSense creds). If ACME backs off, confirm the wildcard
+# resolves first (feedback_pfsense_dns_required_for_acme).
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: fc-network-web-tls
+  namespace: fc-network
+  labels:
+    app: fc-network-web
+    app.kubernetes.io/name: fc-network-web
+    app.kubernetes.io/component: web
+    app.kubernetes.io/part-of: flowercore
+    app.kubernetes.io/managed-by: argocd
+    flowercore.io/tenant-id: system
+    flowercore.io/created-by: bluejay-infra
+  annotations:
+    flowercore.io/dns-preflight: "network.iamworkin.lan must resolve to 10.0.56.200 (CoreDNS wildcard) before ACME sync"
+spec:
+  secretName: fc-network-web-tls
+  issuerRef:
+    name: step-ca-acme
+    kind: ClusterIssuer
+  dnsNames:
+    - network.iamworkin.lan
+  duration: 720h
+  renewBefore: 240h

apps/fc-network/deployment-web.yaml

@@ -0,0 +1,145 @@
+# FlowerCore.Network.Web — the pfSense automation plane (read-only Phase 0, ADR-189).
+#
+# Phase 0 is READ-ONLY: the service holds NO pfSense credentials and has no write
+# path to pfSense anywhere. The only mutating endpoint is POST /api/v1/snapshots,
+# which ingests a config.xml the noc1 exporter collected READ-ONLY and stores it
+# (redacted projection) on the PVC. Auth ships gate-OFF.
+#
+# Image localhost/fc-network-web:<tag> is built by FlowerCore.Network
+# scripts/deploy-k8s.sh and imported to all schedulable RKE2 nodes (rke2-server +
+# rke2-agent1; agent2 retired). imagePullPolicy: Never — bump the tag here, sync
+# ArgoCD, then scale 0->1 for the RWO PVC and verify the running pod imageID.
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: fc-network-web
+  namespace: fc-network
+  labels:
+    app: fc-network-web
+    app.kubernetes.io/name: fc-network-web
+    app.kubernetes.io/component: web
+    app.kubernetes.io/part-of: flowercore
+    app.kubernetes.io/managed-by: argocd
+    flowercore.io/tenant-id: system
+    flowercore.io/created-by: bluejay-infra
+  annotations:
+    flowercore.io/traceability-standard: k8s-pod-ownership-and-traceability-standard
+spec:
+  replicas: 1
+  revisionHistoryLimit: 3
+  # RWO PVC: a single replica can't be surged (the new pod can't mount the volume
+  # while the old one holds it). maxSurge 0 / maxUnavailable 1 is the rwo-safe shape;
+  # for image bumps scale 0->1 rather than rollout restart.
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxSurge: 0
+      maxUnavailable: 1
+  selector:
+    matchLabels:
+      app: fc-network-web
+  template:
+    metadata:
+      labels:
+        app: fc-network-web
+        app.kubernetes.io/name: fc-network-web
+        app.kubernetes.io/component: web
+        app.kubernetes.io/part-of: flowercore
+        app.kubernetes.io/managed-by: argocd
+        flowercore.io/tenant-id: system
+        flowercore.io/created-by: bluejay-infra
+      annotations:
+        fc.flowercore.io/healthz-anon: "true"
+        fc.flowercore.io/probe-path: "/healthz"
+        prometheus.io/scrape: "true"
+        prometheus.io/port: "5340"
+        prometheus.io/path: "/metrics/prometheus"
+        flowercore.io/audit-trace-id: "runtime-activity-trace"
+    spec:
+      securityContext:
+        fsGroup: 1654
+        fsGroupChangePolicy: OnRootMismatch
+      containers:
+        - name: web
+          image: localhost/fc-network-web:v20260612-0b5b049
+          imagePullPolicy: Never
+          ports:
+            - name: http
+              containerPort: 5340
+          # fc-safe-to-expose: read-only plane, auth gate-OFF; X-Forwarded-Proto handled
+          # by AddFlowerCoreWebAuth (ADR-178) before any future public/OIDC flip.
+          env:
+            - name: ASPNETCORE_URLS
+              value: "http://+:5340"
+            - name: ASPNETCORE_ENVIRONMENT
+              value: "Production"
+            - name: DOTNET_SYSTEM_GLOBALIZATION_INVARIANT
+              value: "false"
+            - name: HOME
+              value: "/data"
+            - name: FlowerCore__Auth__Enabled
+              value: "false"
+            - name: FlowerCore__Database__Provider
+              value: "Sqlite"
+            - name: FlowerCore__Database__ConnectionStrings__Sqlite
+              value: "Data Source=/data/network.db"
+            # Snapshot store + intended-model paths MUST be absolute on the PVC —
+            # the default is relative to the read-only content root.
+            - name: FlowerCore__Network__SnapshotStore__RootDirectory
+              value: "/data/snapshots"
+            - name: FlowerCore__Network__SnapshotStore__UseGitHistory
+              value: "true"
+            - name: FlowerCore__Network__IntendedModel__FilePath
+              value: "/data/intended.json"
+          resources:
+            requests:
+              cpu: 50m
+              memory: 128Mi
+            limits:
+              cpu: 500m
+              memory: 512Mi
+          startupProbe:
+            httpGet:
+              path: /healthz
+              port: 5340
+            initialDelaySeconds: 5
+            periodSeconds: 5
+            failureThreshold: 30
+          readinessProbe:
+            httpGet:
+              path: /healthz
+              port: 5340
+            periodSeconds: 10
+            failureThreshold: 3
+          livenessProbe:
+            httpGet:
+              path: /healthz
+              port: 5340
+            initialDelaySeconds: 30
+            periodSeconds: 30
+            failureThreshold: 3
+          securityContext:
+            runAsNonRoot: true
+            runAsUser: 1654
+            runAsGroup: 1654
+            allowPrivilegeEscalation: false
+            readOnlyRootFilesystem: true
+            capabilities:
+              drop:
+                - ALL
+          volumeMounts:
+            - name: data
+              mountPath: /data
+            - name: tmp
+              mountPath: /tmp
+            - name: logs
+              mountPath: /app/logs
+      volumes:
+        - name: data
+          persistentVolumeClaim:
+            claimName: fc-network-web-data
+        - name: tmp
+          emptyDir: {}
+        - name: logs
+          emptyDir: {}

apps/fc-network/ingressroute-web.yaml

@@ -0,0 +1,32 @@
+# LAN ingress for FlowerCore.Network Web (network.iamworkin.lan).
+#
+# RKE2 Traefik has no built-in ACME resolver; TLS certificate ownership stays in
+# cert-manager Certificate/fc-network-web-tls. Phase 0 is read-only but the POST
+# ingest endpoint is genuinely needed by the noc1 exporter, so this route allows
+# all methods (no GET/HEAD-only restriction like fc-dns) — the service itself has
+# NO pfSense write path, so allowing POST here only reaches the local snapshot
+# ingest.
+apiVersion: traefik.io/v1alpha1
+kind: IngressRoute
+metadata:
+  name: fc-network-web
+  namespace: fc-network
+  labels:
+    app: fc-network-web
+    app.kubernetes.io/name: fc-network-web
+    app.kubernetes.io/component: web
+    app.kubernetes.io/part-of: flowercore
+    app.kubernetes.io/managed-by: argocd
+    flowercore.io/tenant-id: system
+    flowercore.io/created-by: bluejay-infra
+spec:
+  entryPoints:
+    - websecure
+  routes:
+    - match: Host(`network.iamworkin.lan`)
+      kind: Rule
+      services:
+        - name: fc-network-web
+          port: 80
+  tls:
+    secretName: fc-network-web-tls

apps/fc-network/kustomization.yaml

@@ -0,0 +1,11 @@
+# ArgoCD's bluejay-infra ApplicationSet discovers apps/* directories on main.
+# The kustomization is included for local previews and single-app validation.
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - namespace.yaml
+  - pvc.yaml
+  - deployment-web.yaml
+  - service-web.yaml
+  - certificate-web.yaml
+  - ingressroute-web.yaml

apps/fc-network/namespace.yaml

@@ -0,0 +1,8 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: fc-network
+  labels:
+    app.kubernetes.io/part-of: flowercore
+    flowercore.io/tenant-id: system
+    flowercore.io/created-by: bluejay-infra

apps/fc-network/pvc.yaml

@@ -0,0 +1,27 @@
+# Persistent store for FlowerCore.Network (read-only pfSense automation plane).
+#
+# Holds the SQLite snapshot INDEX db (network.db) AND the on-box snapshot store
+# (data/snapshots): full-fidelity raw config.xml + redacted inventory sidecars +
+# an on-box git history. Full-fidelity config is on-box ONLY (this PVC); the
+# service DB / REST / MCP / UI only ever surface the REDACTED projection.
+# RWO — single replica, scale 0->1 for updates (never rollout restart).
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: fc-network-web-data
+  namespace: fc-network
+  labels:
+    app: fc-network-web
+    app.kubernetes.io/name: fc-network-web
+    app.kubernetes.io/component: web
+    app.kubernetes.io/part-of: flowercore
+    app.kubernetes.io/managed-by: argocd
+    flowercore.io/tenant-id: system
+    flowercore.io/created-by: bluejay-infra
+spec:
+  accessModes:
+    - ReadWriteOnce
+  storageClassName: longhorn
+  resources:
+    requests:
+      storage: 2Gi

apps/fc-network/service-web.yaml

@@ -0,0 +1,21 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: fc-network-web
+  namespace: fc-network
+  labels:
+    app: fc-network-web
+    app.kubernetes.io/name: fc-network-web
+    app.kubernetes.io/component: web
+    app.kubernetes.io/part-of: flowercore
+    app.kubernetes.io/managed-by: argocd
+    flowercore.io/tenant-id: system
+    flowercore.io/created-by: bluejay-infra
+spec:
+  selector:
+    app: fc-network-web
+  ports:
+    - name: http
+      port: 80
+      targetPort: 5340
+  type: ClusterIP