website/docs: add content about new Advanced Query searches

[tanberry]

This PR adds new sections to the following pages about the new advanced queries (based on DjangoQL):

• Manage users
• Logging Events

Also adds a link in the 2025.8 Rel Notes to this new content.

Related code PR #7698

• The documentation has been updated
• The documentation has been formatted (make docs)

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.62%. Comparing base (c33b9f2) to head (c343a1c).
⚠️ Report is 4 commits behind head on main.
✅ All tests successful. No failed tests found.

❗ There is a different number of reports uploaded between BASE (c33b9f2) and HEAD (c343a1c). Click for more details.

HEAD has 16 uploads less than BASE

Flag	BASE (c33b9f2)	HEAD (c343a1c)
e2e	8	2
unit	15	5

Additional details and impacted files

@@             Coverage Diff             @@
##             main   #16019       +/-   ##
===========================================
- Coverage   92.77%   81.62%   -11.15%     
===========================================
  Files         836      836               
  Lines       45167    45167               
===========================================
- Hits        41902    36868     -5034     
- Misses       3265     8299     +5034     

Flag	Coverage Δ
e2e	43.05% <ø> (-3.57%)	⬇️
integration	23.59% <ø> (+<0.01%)	⬆️
unit	79.89% <ø> (-11.02%)	⬇️

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[github-actions]

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-c343a1c8da19b32428c61728f36aaf472c7450a2
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-c343a1c8da19b32428c61728f36aaf472c7450a2

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

[kensternberg-authentik]

Looks good. No complaints.

[rissson]

Needs a release notes link