feat(security): implement ADR 0005 Authentik boundary and hosting isolation

terraform/authentik.tf

@@ -359,6 +359,23 @@ resource "authentik_application" "silverbullet" {
   protocol_provider = authentik_provider_proxy.silverbullet.id
 }
 
+# 10. Hosting Family Dashboards
+resource "authentik_provider_proxy" "hosting_family" {
+  name                  = "Hosting Family"
+  external_host         = "https://hosting.haumdaucher.de"
+  mode                  = "forward_single"
+  authorization_flow    = data.authentik_flow.default_authorization_flow.id
+  invalidation_flow     = data.authentik_flow.default_invalidation_flow.id
+  intercept_header_auth = true
+  access_token_validity = "days=30"
+}
+
+resource "authentik_application" "hosting_family" {
+  name              = "Hosting Family"
+  slug              = "hosting-family"
+  protocol_provider = authentik_provider_proxy.hosting_family.id
+}
+
 # --- Outpost: Embedded Proxy Outpost ---
 
 resource "authentik_outpost" "embedded" {
@@ -374,6 +391,7 @@ resource "authentik_outpost" "embedded" {
     authentik_provider_proxy.openclaw.id,
     authentik_provider_proxy.n8n.id,
     authentik_provider_proxy.silverbullet.id,
+    authentik_provider_proxy.hosting_family.id,
   ]
 }
 
@@ -759,6 +777,18 @@ resource "authentik_policy_binding" "silverbullet_family" {
   order  = 1
 }
 
+resource "authentik_policy_binding" "hosting_family_admin" {
+  target = authentik_application.hosting_family.uuid
+  group  = authentik_group.infra_admins.id
+  order  = 0
+}
+
+resource "authentik_policy_binding" "hosting_family_family" {
+  target = authentik_application.hosting_family.uuid
+  group  = authentik_group.family.id
+  order  = 1
+}
+
 
 # 2. Shared & Member Applications (Accessible to all authenticated users)
 resource "authentik_policy_binding" "grafana_users" {