divoom: add pi deploy artifact manifests

Add source-controlled Puppet/Hiera contracts for edge2 Divoom-as-DM-device without replacing the live flowercore-divoom systemd deployment.

Add Divoom TV Pi HDMI systemd/Puppet deployment artifacts, LF shell-script guardrails, and focused lint coverage for the additive non-K8s deploy shape.

Co-Authored-By: Codex <codex@openai.com>

apps/fc-divoom-dm-pi-device/puppet/templates/divoom-device-registration.json.epp

@@ -0,0 +1,34 @@
+{
+  "deviceId": "<%= $device_id %>",
+  "displayName": "<%= $display_name %>",
+  "hostFqdn": "<%= $host_fqdn %>",
+  "kind": "DivoomMiniToo",
+  "managedBy": "FlowerCore.DeviceManagement",
+  "executionMode": "Pi",
+  "transport": {
+    "kind": "BluetoothSerial",
+    "candidateChannels": <%= $bt_channels_json %>,
+    "defaultChannel": "<%= $default_bt_channel %>",
+    "deviceInfoIsRenderProof": false,
+    "visibleRenderProofRequired": <%= $visible_render_proof_required %>
+  },
+  "paths": {
+    "divoomInstallDir": "<%= $divoom_install_dir %>",
+    "btLink": "<%= $divoom_install_dir %>/bt-link.sh",
+    "btReset": "<%= $divoom_install_dir %>/bt-reset.sh",
+    "audioLink": "<%= $divoom_install_dir %>/audio-link.sh"
+  },
+  "capabilities": {
+    "supportsBluetoothSerial": true,
+    "supportsBtChannelRedetect": true,
+    "supportsBtHardReset": true,
+    "supportsBtAudioProfileSwitch": true,
+    "a2dpDefaultState": "<%= $a2dp_default_state %>",
+    "fmRadioEnabled": <%= $fm_radio_enabled %>
+  },
+  "safety": {
+    "preserveExistingService": "flowercore-divoom.service",
+    "preserveDataDirectory": "<%= $divoom_install_dir %>/data",
+    "doNotEnableFmRadio": true
+  }
+}

apps/fc-divoom-dm-pi-device/puppet/templates/flowercore-divoom-dm-agent.service.epp

@@ -0,0 +1,36 @@
+[Unit]
+Description=FlowerCore Divoom DM Agent Bluetooth executor
+Documentation=https://github.com/astoltz/FlowerCore.Notes/blob/master/docs/standards/divoom-tv-hdmi-multitarget-render-substrate.md
+Wants=network-online.target
+After=network-online.target bluetooth.service
+Requires=bluetooth.service
+ConditionPathExists=<%= $agent_binary_path %>
+ConditionPathExists=<%= $registration_path %>
+ConditionPathExists=<%= $divoom_install_dir %>/bt-link.sh
+ConditionPathExists=<%= $divoom_install_dir %>/bt-reset.sh
+ConditionPathExists=<%= $divoom_install_dir %>/audio-link.sh
+
+[Service]
+Type=simple
+User=stoltz
+Group=stoltz
+WorkingDirectory=<%= $agent_install_dir %>
+Environment=DOTNET_CLI_TELEMETRY_OPTOUT=1
+Environment=FLOWERCORE_DM_DEVICE_REGISTRATION=<%= $registration_path %>
+Environment=Divoom__Bluetooth__DeviceInfoIsRenderProof=false
+Environment=Divoom__Bluetooth__VisibleRenderProofRequired=true
+Environment=Divoom__Bluetooth__A2dpDefaultState=off
+ExecStart=<%= $agent_binary_path %> --mode=Pi --device-id=<%= $device_id %> --dm-web-url=<%= $dm_web_url %> --registration=<%= $registration_path %>
+Restart=on-failure
+RestartSec=10s
+StartLimitBurst=3
+StartLimitIntervalSec=300s
+SupplementaryGroups=bluetooth audio dialout
+NoNewPrivileges=true
+PrivateTmp=true
+ProtectSystem=strict
+ProtectHome=true
+ReadWritePaths=<%= $state_dir %> <%= $log_dir %>
+
+[Install]
+WantedBy=multi-user.target