build(deps): bump @angular/core from 21.0.4 to 21.0.6 in /frontend

[dependabot]

Bumps @angular/core from 21.0.4 to 21.0.6.

Release notes

Sourced from @​angular/core's releases.

21.0.6

core

Commit	Description
	throw better errors for potential circular references
	use mutable ResponseInit type for RESPONSE_INIT token

forms

Commit	Description
	pass field directive to class config
	rename field to fieldTree in FieldContext and ValidationError

language-service

Commit	Description
	avoid interpolation highlighting inside @​let
	Prevent language service from crashing on suggestion diagnostic errors

Breaking Changes

forms

• The shape of SignalFormsConfig.classes has changed

  Previously each function in the classes map took a FieldState. Now it takes a Field directive.

  For example if you previously had:

  provideSignalFormsConfig({
    classes: {
      'my-valid': (state) => state.valid()
    }
  })
  

  You would need to update to:

  provideSignalFormsConfig({
    classes: {
      'my-valid': ({state}) => state().valid()
    }
  })
  

  (cherry picked from commit 348f149e8b06d6885f54bac4cf03a9481a8b19b7)

• (cherry picked from commit ae0c59028a2f393ea5716bf222db2c38e7a3989f)

21.0.5

core

Commit	Description
	avoid false-positive deprecation when using InjectionToken with factory only

forms

... (truncated)

Changelog

Sourced from @​angular/core's changelog.

21.0.6 (2025-12-17)

Breaking Changes (affecting only experimental features)

forms

• The shape of SignalFormsConfig.classes has changed

  Previously each function in the classes map took a FieldState. Now it takes a Field directive.

  For example if you previously had:

  provideSignalFormsConfig({
    classes: {
      'my-valid': (state) => state.valid()
    }
  })
  

  You would need to update to:

  provideSignalFormsConfig({
    classes: {
      'my-valid': ({state}) => state().valid()
    }
  })
  

  (cherry picked from commit 348f149e8b06d6885f54bac4cf03a9481a8b19b7)

• (cherry picked from commit ae0c59028a2f393ea5716bf222db2c38e7a3989f)

core

Commit	Type	Description
4c8fb3631d	fix	throw better errors for potential circular references
48492524ea	fix	use mutable ResponseInit type for RESPONSE_INIT token

forms

Commit	Type	Description
81772b420d	feat	pass field directive to class config
729b96476b	refactor	rename field to fieldTree in FieldContext and ValidationError

language-service

Commit	Type	Description
e0694df3ec	fix	avoid interpolation highlighting inside @​let
5047be4bc1	fix	Prevent language service from crashing on suggestion diagnostic errors

21.1.0-next.3 (2025-12-11)

... (truncated)

Commits

• 4849252 fix(core): use mutable ResponseInit type for RESPONSE_INIT token
• a4d2de8 Revert "fix(core): explicitly cast signal node value to String"
• 0eb623c fix(core): explicitly cast signal node value to String
• dc0aae9 docs: add section about reactive contexts
• feed89e ci: reformat files
• 0a5fd6b refactor(core): conditionally include debug names based on ngDevMode
• 31b9090 refactor(compiler): remove unnecessary sanitization for safe attributes
• 69b089a docs: Adds documentation for the NG0919 error
• 534b1b5 Revert "refactor(compiler): remove unnecessary sanitization for safe attributes"
• 4c8fb36 fix(core): throw better errors for potential circular references
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

[dependabot]

Superseded by #72.