Add device info metadata for Yahoo Finance sensors

[eugenetsi]

Summary

• register each Yahoo Finance sensor as a device by exposing device_info with identifiers,
  manufacturer and a link back to the Yahoo quote page
• introduce YAHOO_QUOTE_URL so configuration URLs are consistent
• add a pytest config (asyncio_mode = auto) so Home Assistant fixtures run without
  async_generator errors
• cover the new behavior with test_device_info_exposes_symbol_details

Testing

• pytest tests/test_sensor.py -k device_info_exposes_symbol_details
• pytest

[iprak]

Would you mind adding the usage of this PR? It is to have the link to view more details?

[iprak]

It would help if you explain the purpose of the PR and how to access the device info. As I understand, since the integration cannot be configured from UI, so the device info cannot be accessed in UI.

[eugenetsi]

It would help if you explain the purpose of the PR and how to access the device info. As I understand, since the integration cannot be configured from UI, so the device info cannot be accessed in UI.

Even for YAML-only integrations, HA still registers a device record when device_info is provided.
After restarting, each ticker shows up under Settings -> Devices & Services -> Entities (filter by “Yahoo Finance” or the symbol). Clicking any entity shows the “Device info” panel on the right, including the new “Yahoo Finance ” device entry; you can follow the configuration URL, disable the device, etc. That’s what this PR enables—the sensor entities are no longer “orphans” in the registry.

[iprak]

It would help if you explain the purpose of the PR and how to access the device info. As I understand, since the integration cannot be configured from UI, so the device info cannot be accessed in UI.

Even for YAML-only integrations, HA still registers a device record when device_info is provided. After restarting, each ticker shows up under Settings -> Devices & Services -> Entities (filter by “Yahoo Finance” or the symbol). Clicking any entity shows the “Device info” panel on the right, including the new “Yahoo Finance ” device entry; you can follow the configuration URL, disable the device, etc. That’s what this PR enables—the sensor entities are no longer “orphans” in the registry.

That is exactly what I thought was the intent. But I am not seeing anything in the Device column or Devices tab or under the kebab menu where Service info appears. Could there some other change ? I suspect that I might be missing something? I never hit my breakpoint on device_info and have confirmed that I have the correct code by introduce syntax error in device_info. I am on 2025.12.4.

This is what I see

The device registry wiki https://developers.home-assistant.io/docs/device_registry_index/ confirms that device info is only read for config entry which is for setup via UI.