Add device data model and ITAM service

Introduce device, posture, and enrollment-token entities with ITAM
service policies for agent-managed fleet inventory.

Signed-off-by: Ludovic Vielle <ludovic@probo.com>

pkg/itam/actions.go

@@ -0,0 +1,37 @@
+// Copyright (c) 2025-2026 Probo Inc <hello@probo.com>.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+package itam
+
+// ITAM Service Actions
+// Format: itam:<entity>:<action>
+const (
+	// Device actions
+	ActionDeviceList         = "itam:device:list"
+	ActionEmployeeDeviceList = "itam:employee-device:list"
+	ActionDeviceGet          = "itam:device:get"
+	ActionDeviceCreate       = "itam:device:create"
+	ActionDeviceEnroll       = "itam:device:enroll"
+	ActionDeviceRevoke       = "itam:device:revoke"
+	ActionDeviceAssignOwner  = "itam:device:assign"
+
+	// DevicePosture actions
+	ActionDevicePostureList = "itam:device-posture:list"
+)