test: add firmware capture fixtures and stdlib-level unit tests for parsers, intents, running apps

tests/conftest.py

@@ -0,0 +1,12 @@
+"""Test bootstrap.
+
+Puts the vendored ha_adb_common package on sys.path so helpers can be imported
+directly (their code is stdlib-only) without installing Home Assistant or
+executing the integration's __init__ module.
+"""
+
+import sys
+from pathlib import Path
+
+REPO_ROOT = Path(__file__).resolve().parent.parent
+sys.path.insert(0, str(REPO_ROOT / "custom_components" / "nvidia_shield"))