fix: mac addresses duplicated due to same interface object being re-ingested

[leoparente]

This pull request refactors how parent interfaces are represented and resolved in the translation logic for device discovery, focusing on simplifying parent-child relationships by storing and passing parent interface names instead of full interface objects. It also introduces a new test to ensure subinterfaces derived only from IP data correctly link to their parent interfaces.

Refactoring parent interface representation

• Changed the parent parameter in translate_interface and related docstrings to use str | None (interface name) instead of Interface | None (full object), streamlining how parent relationships are handled. [1] [2]
• Updated the assignment of assigned_object_interface in IP entity creation to use the interface name rather than the interface object.
• Refactored the resolve_parent function to return the parent interface name (str | None) instead of the full interface object, and adjusted the logic to check both defined and entity names for parent existence.

Testing parent-child relationships

• Added a new test, test_translate_data_creates_ip_only_subinterface_parent_relationship, which verifies that subinterfaces created solely from IP data correctly reference their parent interface by name.

[github-actions]

Coverage Report

File	Stmts	Miss	Cover	Missing
device_discovery
discovery.py	63	2	97%	142–145
main.py	49	2	96%	183, 189
metrics.py	53	1	98%	114
server.py	82	10	88%	35–37, 63–78, 168, 171
translate.py	164	1	99%	321
version.py	7	1	86%	14
device_discovery/policy
manager.py	41	2	95%	36–37
runner.py	117	2	98%	186–187
TOTAL	674	21	97%

Tests	Skipped	Failures	Errors	Time
77	0 💤	0 ❌	0 🔥	7.213s ⏱️