providers/oauth2: Add `cause` to debug issues and better tests

[BeryJu]

Details

REPLACE ME

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Checklist

• [ ] Local tests pass (ak test authentik/)
• [ ] The code has been formatted (make lint-fix)

If an API change has been made

• [ ] The API schema has been updated (make gen-build)

If changes to the frontend have been made

• [ ] The code has been formatted (make web)

If applicable

• [ ] The documentation has been updated
• [ ] The documentation has been formatted (make website)

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[codecov[bot]]

Codecov Report

Attention: Patch coverage is 95.52239% with 3 lines in your changes missing coverage. Please review.

Project coverage is 93.18%. Comparing base (a8dc21b) to head (4764d2c). Report is 17 commits behind head on main.

:white_check_mark: All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
authentik/providers/oauth2/views/authorize.py	85.71%	1 Missing :warning:
...entik/providers/oauth2/views/device_backchannel.py	92.85%	1 Missing :warning:
authentik/providers/oauth2/views/token.py	50.00%	1 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #15057      +/-   ##
==========================================
+ Coverage   93.15%   93.18%   +0.02%     
==========================================
  Files         831      831              
  Lines       44146    44157      +11     
==========================================
+ Hits        41126    41148      +22     
+ Misses       3020     3009      -11     

Flag	Coverage Δ
e2e	46.62% <20.89%> (-0.02%)	:arrow_down:
integration	23.47% <0.00%> (-0.02%)	:arrow_down:
unit	91.28% <94.02%> (+0.02%)	:arrow_up:

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[github-actions[bot]]

authentik PR Installation instructions

Instructions for docker-compose

Add the following block to your .env file:

AUTHENTIK_IMAGE=ghcr.io/goauthentik/dev-server
AUTHENTIK_TAG=gh-4764d2ccea132452190f10189954d62a557c5cd9
AUTHENTIK_OUTPOSTS__CONTAINER_IMAGE_BASE=ghcr.io/goauthentik/dev-%(type)s:gh-%(build_hash)s

Afterwards, run the upgrade commands from the latest release notes.

Instructions for Kubernetes

Add the following block to your values.yml file:

authentik:
    outposts:
        container_image_base: ghcr.io/goauthentik/dev-%(type)s:gh-%(build_hash)s
global:
    image:
        repository: ghcr.io/goauthentik/dev-server
        tag: gh-4764d2ccea132452190f10189954d62a557c5cd9

Afterwards, run the upgrade commands from the latest release notes.

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✅ Deploy Preview for authentik-integrations canceled.

Name	Link
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[notion-workspace[bot]]

OAuth Provider: Improved error responses