feat(devops): GitHub Repository Notes Model

ref: #693 #515

app/devops/models/git_repository/github_notes.py

@@ -0,0 +1,47 @@
+from django.db import models
+
+from core.models.model_notes import ModelNotes
+
+from devops.models.git_repository.github import GitHubRepository
+
+
+
+class GitHubRepositoryNotes(
+    ModelNotes
+):
+
+
+    class Meta:
+
+        db_table = 'devops_github_repository_notes'
+
+        ordering = ModelNotes._meta.ordering
+
+        verbose_name = 'GitHub Repository Note'
+
+        verbose_name_plural = 'GitHub Repository Notes'
+
+
+    model = models.ForeignKey(
+        GitHubRepository,
+        blank = False,
+        help_text = 'Model this note belongs to',
+        null = False,
+        on_delete = models.CASCADE,
+        related_name = 'notes',
+        verbose_name = 'Model',
+    )
+
+    app_namespace = 'devops'
+
+    table_fields: list = []
+
+    page_layout: dict = []
+
+
+    def get_url_kwargs(self) -> dict:
+
+        return {
+            'model_id': self.model.pk,
+            'pk': self.pk
+        }