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/hiera/edge2-divoom-dm-device.overlay.yaml

@@ -0,0 +1,32 @@
+---
+# Merge into FlowerCore.Puppet data/nodes/edge2.iamworkin.lan.yaml.
+# Additive overlay only: keep the existing fc-pimanager version/tarball entry,
+# keep fc-divoom enabled, and do not move Divoom into Kubernetes.
+
+profile::pi::service::apps:
+  fc-pimanager:
+    binary: 'FlowerCore.PiManager.Web'
+    install_dir: '/opt/fc-pimanager'
+    port: 5000
+    environment: 'edge2'
+    version: '2026.05.28.1646'
+    tarball_source: 'puppet:///modules/profile/pi/builds/fc-pimanager.tar.gz'
+  fc-divoom:
+    enabled: true
+
+profile::pi::service::divoom_dm_device::ensure: 'present'
+profile::pi::service::divoom_dm_device::service_enabled: false
+profile::pi::service::divoom_dm_device::service_ensure: 'stopped'
+profile::pi::service::divoom_dm_device::device_id: 'edge2-divoom-minitoo'
+profile::pi::service::divoom_dm_device::display_name: 'edge2 Divoom MiniToo'
+profile::pi::service::divoom_dm_device::host_fqdn: 'edge2.iamworkin.lan'
+profile::pi::service::divoom_dm_device::dm_web_url: 'https://devicemgmt.iamworkin.lan'
+profile::pi::service::divoom_dm_device::divoom_install_dir: '/opt/flowercore/divoom'
+profile::pi::service::divoom_dm_device::agent_install_dir: '/opt/flowercore/devicemanagement-agent'
+profile::pi::service::divoom_dm_device::bt_candidate_channels:
+  - '1'
+  - '10'
+profile::pi::service::divoom_dm_device::default_bt_channel: '1'
+profile::pi::service::divoom_dm_device::a2dp_default_state: 'off'
+profile::pi::service::divoom_dm_device::fm_radio_enabled: false
+profile::pi::service::divoom_dm_device::visible_render_proof_required: true