feat: extend software license lifecycle data

Make license type optional and add lifetime or recurring renewal terms, license file and key storage, and provider portal URLs across the UI, API, filters, imports, translations, and migrations.

netbox_slm/filtersets.py

@@ -1,6 +1,6 @@
 from django.db.models import Q
 from django.utils.translation import gettext_lazy as _
-from django_filters import CharFilter, ModelMultipleChoiceFilter, MultipleChoiceFilter
+from django_filters import CharFilter, ModelMultipleChoiceFilter, MultipleChoiceFilter, NumberFilter
 
 from dcim.models import Device, Manufacturer
 from netbox.filtersets import NetBoxModelFilterSet
@@ -10,6 +10,7 @@ from netbox_slm.models import (
     SoftwareProductInstallation,
     SoftwareLicense,
     SoftwareReleaseTypes,
+    RenewalIntervalUnits,
 )
 from virtualization.models import Cluster, VirtualMachine
 from tenancy.models import Tenant, TenantGroup
@@ -117,6 +118,8 @@ class SoftwareLicenseFilterSet(NetBoxModelFilterSet):
     type = CharFilter(lookup_expr="icontains")
     spdx_expression = CharFilter(lookup_expr="icontains", label=_("SPDX expression"))
     stored_location = CharFilter(lookup_expr="icontains")
+    renewal_interval = NumberFilter()
+    renewal_interval_unit = MultipleChoiceFilter(choices=RenewalIntervalUnits.choices)
 
     software_product_id = ModelMultipleChoiceFilter(
         queryset=SoftwareProduct.objects.all(),
@@ -129,7 +132,7 @@ class SoftwareLicenseFilterSet(NetBoxModelFilterSet):
 
     class Meta:
         model = SoftwareLicense
-        fields = ("support",)
+        fields = ("support", "lifetime")
 
     def search(self, queryset, name, value):
         """Perform the filtered search."""