feat: implemented new oauth flow 11/2025 using ios app flow

[KiraPC]

Description:

I'm implemented the new flow based on the flow used by the iOS application to fix #1147

Related issue (if applicable): fixes #

Checklist:

• Local tests with tox run successfully PR cannot be meged unless tests pass
• Changes tested locally to ensure platform still works as intended
• Tests added to verify new code works

[abuiles]

@KiraPC thanks! I ran your branch and it's working again 👍

[fronzbot]

Awesome! 🥳

[KiraPC]

@fronzbot Will you update the home assistant manifest? Otherwise I'll do it tomorrow morning (UTC +2)

[fronzbot]

@KiraPC - Out of town, so just doing this stuff remotely right now so if you can do it tomorrow, that would be great. Otherwise I can get to it monday. The release is 0.25.0

[KiraPC]

Ah okok no problem. I can do it or this night or tomorrow

[sgtbilge]

@KiraPC thanks! I ran your branch and it's working again 👍

Working for me too.