refactor(hosts): split chelsty monolith into chelsty-ha and chelsty-infra

- remove legacy hosts/chelsty/ monolith
- chelsty-infra: add capabilities, networking, paths, runtime (mosquitto, zigbee2mqtt, stability-agent)
- chelsty-ha: add capabilities
- align with site/node model

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

hosts/chelsty-ha/capabilities.yaml

@@ -0,0 +1,24 @@
+host: chelsty-ha
+site: chelsty
+
+capabilities:
+  networking:
+    reachability: tailscale-only
+    tailscale_ip: 100.122.201.23
+    ingress_suitability: false
+    bandwidth: LTE
+
+  runtime:
+    container_engine: docker
+    os: debian
+
+  operational:
+    connectivity: intermittent
+    availability_target: best-effort
+    offline_first: true
+    uplink: lte
+
+  deployment:
+    suitability:
+      - homeassistant
+    restricted: false

hosts/chelsty-ha/host.yaml

@@ -0,0 +1,20 @@
+hostname: chelsty-ha
+site: chelsty
+
+roles:
+  - homeassistant
+
+network:
+  tailscale_ip: 100.122.201.23
+
+runtime:
+  root: /opt/homelab
+
+deployment:
+  mode: pull
+  managed_by: saturn
+
+  constraints:
+    connectivity:
+      intermittent: true
+      uplink: lte

hosts/chelsty-ha/services.yaml

@@ -0,0 +1,6 @@
+host: chelsty-ha
+site: chelsty
+
+services:
+  homeassistant:
+    role: home-automation-controller

hosts/chelsty-infra/capabilities.yaml

@@ -1,3 +1,6 @@
+host: chelsty-infra
+site: chelsty
+
 capabilities:
   hardware:
     cpu:
@@ -8,33 +11,34 @@ capabilities:
       total_gb: 16
     acceleration:
       type: none
-  
+
   virtualization:
     supported: true
     type: kvm
-  
+
   storage:
     persistence: persistent
     type: ssd
     capacity_gb: 250
-  
+
   networking:
     reachability: tailscale-only
     ingress_suitability: false
     bandwidth: LTE
-  
+
   runtime:
     container_engine: docker
     os: debian
-  
+
   operational:
     power_constraint: low-power
     connectivity: intermittent
     availability_target: best-effort
-  
+    offline_operation_required: true
+
   deployment:
     suitability:
       - staging
-      - homeassistant
+      - infra
       - edge
     restricted: false

hosts/chelsty-infra/host.yaml

@@ -1,9 +1,10 @@
-hostname: chelsty
+hostname: chelsty-infra
+site: chelsty
 
 roles:
   - edge
   - hypervisor
-  - homeassistant
+  - infra
   - staging
 
 network:

hosts/chelsty-infra/networking.yaml

@@ -1,4 +1,4 @@
-host: chelsty
+host: chelsty-infra
 
 uplink:
   type: lte
@@ -20,7 +20,7 @@ exposure_classes:
 
 networks:
   home_automation_lan:
-    purpose: Home Assistant, MQTT, Zigbee coordinator, and local device control.
+    purpose: MQTT broker, Zigbee coordinator, and local device control.
     offline_required: true
     internet_required_for_core_operation: false
 

hosts/chelsty-infra/paths.yaml

@@ -1,4 +1,4 @@
-host: chelsty
+host: chelsty-infra
 
 runtime_root: /opt/homelab
 
@@ -9,12 +9,6 @@ conventions:
   logs: /opt/homelab/logs
 
 services:
-  homeassistant:
-    data: /opt/homelab/data/homeassistant
-    config: /opt/homelab/config/homeassistant
-    logs: /opt/homelab/logs/homeassistant
-    backup_priority: critical
-
   zigbee2mqtt:
     data: /opt/homelab/data/zigbee2mqtt
     config: /opt/homelab/config/zigbee2mqtt
@@ -27,13 +21,13 @@ services:
     logs: /opt/homelab/logs/mosquitto
     backup_priority: high
 
-backup_sets:
+  stability-agent:
-  homeassistant:
+    data: /opt/homelab/state
-    include:
+    config: /opt/homelab/config/stability-agent
-      - /opt/homelab/config/homeassistant
+    logs: /opt/homelab/events
-      - /opt/homelab/data/homeassistant
+    backup_priority: low
-    restore_note: Restore before starting the Home Assistant container.
 
+backup_sets:
   zigbee2mqtt:
     include:
       - /opt/homelab/config/zigbee2mqtt

hosts/chelsty-infra/runtime/stability-agent/docker-compose.override.yml

@@ -1,7 +1,8 @@
 services:
   stability-agent:
     environment:
-      - NODE_NAME=chelsty
+      - NODE_NAME=chelsty-infra
+      - SITE_NAME=chelsty
       - REDIS_HOST=100.108.208.3
       - REDIS_PORT=6379
       - REDIS_ENABLED=true

hosts/chelsty-infra/services.yaml

@@ -0,0 +1,10 @@
+host: chelsty-infra
+site: chelsty
+
+services:
+  mosquitto:
+    role: local-mqtt-broker
+  zigbee2mqtt:
+    role: zigbee-mqtt-bridge
+  stability-agent:
+    role: node-stability-monitor

hosts/chelsty/services.yaml

@@ -1,126 +0,0 @@
-host: chelsty
-
-exposure_classes:
-  local-only:
-    description: Reachable only from CHELSTY-local networks or container networks.
-    public_ingress: false
-    tailscale_required: false
-  tailscale-internal:
-    description: Reachable through the Tailscale mesh by approved tailnet clients.
-    public_ingress: false
-    tailscale_required: true
-  public:
-    description: Reachable from the public internet through an explicit ingress path.
-    public_ingress: true
-    tailscale_required: false
-
-operational_constraints:
-  uplink: lte
-  connectivity: intermittent
-  offline_operation_required: true
-  must_not_depend_on:
-    - saturn
-    - vps
-    - forgejo
-
-services:
-  homeassistant:
-    role: home-automation-controller
-    deployment_model: docker-compose
-    exposure: tailscale-internal
-    offline_required: true
-    depends_on:
-      local:
-        - mosquitto
-        - zigbee2mqtt
-      external: []
-    ports:
-      - name: http
-        container_port: 8123
-        protocol: tcp
-    runtime:
-      config_path: /opt/homelab/config/homeassistant
-      data_path: /opt/homelab/data/homeassistant
-      logs_path: /opt/homelab/logs/homeassistant
-    backup:
-      recommended: true
-      include:
-        - /opt/homelab/config/homeassistant
-        - /opt/homelab/data/homeassistant
-      notes:
-        - Back up before Home Assistant core, supervisor-equivalent, or integration upgrades.
-        - Keep local restore copies on CHELSTY because LTE connectivity may be unavailable during recovery.
-
-  zigbee2mqtt:
-    role: zigbee-mqtt-bridge
-    deployment_model: docker-compose
-    exposure: local-only
-    offline_required: true
-    depends_on:
-      local:
-        - mosquitto
-      external:
-        - slzb-06u
-    coordinator:
-      name: slzb-06u
-      connection: network
-      usb_device: null
-    ports:
-      - name: frontend
-        container_port: 8080
-        protocol: tcp
-        exposure: tailscale-internal
-    runtime:
-      config_path: /opt/homelab/config/zigbee2mqtt
-      data_path: /opt/homelab/data/zigbee2mqtt
-      logs_path: /opt/homelab/logs/zigbee2mqtt
-    backup:
-      recommended: true
-      include:
-        - /opt/homelab/config/zigbee2mqtt
-        - /opt/homelab/data/zigbee2mqtt
-      notes:
-        - Include configuration.yaml, database.db, coordinator backup files, and network key material.
-        - Restore Zigbee2MQTT state together with the SLZB-06U coordinator state when replacing hardware.
-
-  mosquitto:
-    role: local-mqtt-broker
-    deployment_model: docker-compose
-    exposure: local-only
-    offline_required: true
-    depends_on:
-      local: []
-      external: []
-    ports:
-      - name: mqtt
-        container_port: 1883
-        protocol: tcp
-    runtime:
-      config_path: /opt/homelab/config/mosquitto
-      data_path: /opt/homelab/data/mosquitto
-      logs_path: /opt/homelab/logs/mosquitto
-    backup:
-      recommended: true
-      include:
-        - /opt/homelab/config/mosquitto
-        - /opt/homelab/data/mosquitto
-      notes:
-        - Retain ACL, password, persistence, and bridge configuration if enabled.
-
-  stability-agent:
-    role: node-stability-monitor
-    deployment_model: docker-compose
-    exposure: local-only
-    offline_required: true
-    depends_on:
-      local:
-        - mosquitto
-      external: []
-    runtime:
-      config_path: /opt/homelab/config/stability-agent
-      data_path: /opt/homelab/state
-      logs_path: /opt/homelab/events
-    backup:
-      recommended: false
-      notes:
-        - Events and state are transient or can be reconstructed; high-frequency writes.