Integrate CpsRootFontSizeService into components

[fateeand]

Integrated CpsRootFontSizeService into CpsAutocompleteComponent, CpsButtonToggleComponent, CpsDialogComponent, and CpsTooltipDirective, replacing their custom logic, which also lacked support for dynamic root font size changes.

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Release notes:

• Integrate CpsRootFontSizeService into components

[github-actions]

Coverage report for library

St.❔	Category	Percentage	Covered / Total
🔴	Statements	41.66%	2888/6933
🔴	Branches	35.79%	1208/3375
🔴	Functions	40.84%	553/1354
🔴	Lines	42.32%	2705/6392

Test suite run success

869 tests passing in 31 suites.

Report generated by 🧪jest coverage report action from 3c06009

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Playwright test results

 70 passed

Details

 70 tests across 4 suites
 2 minutes, 9 seconds
 3c06009
 For details, download the Playwright report

[Copilot]

Pull request overview

This PR standardizes how root font size is obtained across UI components/directives by integrating CpsRootFontSizeService (via CPS_ROOT_FONT_SIZE_SERVICE) and removing per-component DOM getComputedStyle(...).fontSize logic, with corresponding test updates/additions.

Changes:

• Inject CPS_ROOT_FONT_SIZE_SERVICE into CpsDialogComponent, CpsAutocompleteComponent, CpsButtonToggleComponent, and CpsTooltipDirective and replace local root-font-size reads with service access.
• Remove component/directive init-time root font-size detection where replaced by the service.
• Update/add unit tests to provide a mock root font size service (including a new CpsButtonToggleComponent spec).

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
projects/cps-ui-kit/src/lib/services/cps-dialog/internal/components/cps-dialog/cps-dialog.component.ts	Use root font size service instead of local cached value.
projects/cps-ui-kit/src/lib/services/cps-dialog/internal/components/cps-dialog/cps-dialog.component.spec.ts	Provide mock root font size service for dialog tests.
projects/cps-ui-kit/src/lib/directives/cps-tooltip/cps-tooltip.directive.ts	Use root font size service; remove OnInit root font-size initialization.
projects/cps-ui-kit/src/lib/directives/cps-tooltip/cps-tooltip.directive.spec.ts	Provide mock root font size service for tooltip tests.
projects/cps-ui-kit/src/lib/components/cps-button-toggle/cps-button-toggle.component.ts	Use root font size service and remove platform/browser-specific font-size read.
projects/cps-ui-kit/src/lib/components/cps-button-toggle/cps-button-toggle.component.spec.ts	Add unit tests for button toggle behavior (incl. equal-width calculations).
projects/cps-ui-kit/src/lib/components/cps-autocomplete/cps-autocomplete.component.ts	Use root font size service and remove init-time computed-style font-size read.
projects/cps-ui-kit/src/lib/components/cps-autocomplete/cps-autocomplete.component.spec.ts	Provide mock root font size service for autocomplete tests.

Comments suppressed due to low confidence (1)

projects/cps-ui-kit/src/lib/components/cps-autocomplete/cps-autocomplete.component.ts:483

• virtualScrollItemSizePx is computed once in ngOnInit() from _rootFontSizePx. Because _rootFontSizePx is now sourced from a reactive CpsRootFontSizeService signal, root font-size changes at runtime won’t update virtualScrollItemSizePx, which can break virtual scroll calculations (e.g., _scrollVirtualListToIndex). Consider deriving virtualScrollItemSizePx from the signal (e.g., via an effect/computed) or recalculating it whenever the root font size changes.

  ngOnInit() {
    this.virtualScrollItemSizePx =
      this._rootFontSizePx * VIRTUAL_SCROLL_ITEM_SIZE_REM;
    this.virtualListHeightRem =
      VIRTUAL_SCROLL_ITEM_SIZE_REM * VIRTUAL_SCROLL_MAX_VISIBLE_ITEMS;
    this.cvtWidth = convertSize(this.width);