feat: prevent duplicate component creation from templates

[mfiedorowicz]

This pull request improves the handling of auto-created component objects (such as interfaces and module bays) to prevent duplicate creation when applying changes through the API. It introduces logic to detect and update existing components that were instantiated from templates, ensuring that incoming changes reuse and update these objects rather than creating new duplicates. The changes are validated with new tests that verify correct reuse and updating of components.

Component Deduplication Logic:

• Updated _apply_change in netbox_diode_plugin/api/applier.py to check for existing auto-created components (like dcim.interface, dcim.modulebay, etc.) before creating new ones, and to update them if found instead of creating duplicates.

Testing Improvements:

• Added test_module_bay_from_template_no_duplicate and test_interface_from_template_no_duplicate to netbox_diode_plugin/tests/test_api_apply_change_set.py to verify that module bays and interfaces created from templates are reused and updated, not duplicated, when ingested via API changes.

Operational Tuning:

• Increased the healthcheck start_period for the NetBox service in docker/docker-compose.yaml from 60s to 180s to allow more time for startup before healthchecks begin.

[jajeffries]

Overall looks good - couple of minor suggestions but happy for it to go in as is

[jajeffries]

LGTM

[github-actions]

☂️ Python Coverage

current status: ✅

Overall Coverage

Lines	Covered	Coverage	Threshold	Status
4186	3792	91%	0%	🟢

New Files

No new covered files...

Modified Files

File	Coverage	Status
netbox_diode_plugin/api/applier.py	94%	🟢
netbox_diode_plugin/tests/test_api_apply_change_set.py	100%	🟢
TOTAL	97%	🟢

updated for commit: 522d4d0 by action🐍