web: Port captcha field validation.

[GirlBossRush]

Details

See #15482

---

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 docs)

[netlify]

✅ Deploy Preview for authentik-docs canceled.

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🔨 Latest commit	59bf2b1
🔍 Latest deploy log	https://app.netlify.com/projects/authentik-docs/deploys/6883a823728e0900087ca0f7

[netlify]

✅ Deploy Preview for authentik-integrations canceled.

Name	Link
🔨 Latest commit	59bf2b1
🔍 Latest deploy log	https://app.netlify.com/projects/authentik-integrations/deploys/6883a8233cfbf70008b4d0f6

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.92%. Comparing base (19980d0) to head (59bf2b1).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@               Coverage Diff               @@
##           version-2025.6   #15794   +/-   ##
===============================================
  Coverage           92.92%   92.92%           
===============================================
  Files                 817      817           
  Lines               42295    42295           
===============================================
  Hits                39302    39302           
  Misses               2993     2993           

Flag	Coverage Δ
e2e	47.50% <ø> (+<0.01%)	⬆️
integration	24.37% <ø> (+<0.01%)	⬆️
unit	90.82% <ø> (ø)

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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-59bf2b143e061db19228da98854394f9ee9d93a6
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-59bf2b143e061db19228da98854394f9ee9d93a6

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