chore: add backlog-notify onStatusChange hook

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backlog/config.yml

@@ -0,0 +1,16 @@
+project_name: "Inward Travel"
+default_status: "To Do"
+statuses: ["To Do", "In Progress", "Done"]
+labels: []
+milestones: []
+date_format: yyyy-mm-dd
+max_column_width: 20
+default_editor: "nvim"
+auto_open_browser: true
+default_port: 6420
+remote_operations: true
+auto_commit: false
+bypass_git_hooks: false
+check_active_branches: true
+active_branch_days: 30
+onStatusChange: 'python3 /home/jeffe/Github/dev-ops/scripts/backlog-notify.py'