web: follow-up polish for modal and form components

[GirlBossRush]

Dependencies

• web: Fix table visibility checks, search params. #21623
• web: Normalize use of .toJSON() over .json() #21621

Follow-up to #21336 — small fixes and polish that came out of testing the modal revisions.

Summary

• Add scroll shadow utility class for scrollable containers (dialog body, sidebar)
• Tidy FormGroup marker styles with CSS custom properties
• Wire up ApplicationCheckAccessForm with modalInvoker
• Move clearSearch to base Table class, fix isInteractiveElement tabIndex handling
• Add neutral state to ak-status-label

Breakdown

1. de2cbf03f1 CSS/styling: logical properties for dialogs, scroll shadow utility, radio/form control rework, FormGroup marker refactor, sidebar padding fix
2. a1e07176f0 Elements/components: dialog ARIA, tri-state status label, FormGroup simplification, LogViewer/StaticTable cleanup, switch/radio input fixes
3. d9a0cb7264 Application pages: modalInvoker migration, form metadata properties, nullable createPaginatedResponse, dropdown casing fix

Test plan

• Modals scroll correctly with shadow hints at overflow boundaries
• FormGroup expand/collapse markers render in both themes
• "Check access" and "Edit" on Application view page open correctly
• Table search clear works from both TablePage and StaticTable contexts

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.22%. Comparing base (af747c6) to head (4145dd2).
⚠️ Report is 13 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #21588      +/-   ##
==========================================
- Coverage   92.29%   92.22%   -0.08%     
==========================================
  Files        1032     1033       +1     
  Lines       59767    59947     +180     
  Branches     2537     2695     +158     
==========================================
+ Hits        55163    55286     +123     
- Misses       4541     4588      +47     
- Partials       63       73      +10     

Flag	Coverage Δ
conformance	36.97% <ø> (-0.01%)	⬇️
e2e	42.89% <ø> (-0.01%)	⬇️
integration	33.89% <ø> (-0.01%)	⬇️
rust	60.55% <ø> (-0.03%)	⬇️
unit	91.92% <ø> (+<0.01%)	⬆️
unit-migrate	92.02% <ø> (+<0.01%)	⬆️

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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-4145dd2c1c195204e161affed1ffccf0beb6619f
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-4145dd2c1c195204e161affed1ffccf0beb6619f

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

[GirlBossRush]

@copilot resolve the merge conflicts in this pull request