Remove labels.nais.io prefix handling from labels flow

[thokra-nav]

Accept slash in label keys and stop auto-adding or stripping a labels.nais.io prefix in label conversion helpers.

Update label UI copy and headings to remove prefix references, and drop the key-field prefix decoration in the editor rows.

Adjust tests to match raw key behavior and new key validation rules.

Requires nais/api#463

[Copilot]

Pull request overview

Removes labels.nais.io prefix-specific behavior from the labels UX and label conversion helpers, and updates validation to allow / in label keys (supporting fully-qualified prefix/name keys).

Changes:

• Updates labels-related UI headings/copy to remove labels.nais.io prefix references.
• Removes automatic prefix add/strip behavior from label conversion helpers and updates tests accordingly.
• Relaxes label key character validation to allow /.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
src/lib/domain/workload/WorkloadListFilters.svelte	Updates labels filter section heading to remove prefix reference.
src/lib/domain/labels/LabelsEditorModal.svelte	Simplifies modal copy to no longer mention automatic prefix handling; removes now-unused <code> styling.
src/lib/domain/labels/labels.ts	Removes prefix helpers; updates key/value conversion; relaxes charset to permit /.
src/lib/domain/labels/labels.test.ts	Drops prefix-helper tests and updates expectations for raw keys and slash acceptance.
src/lib/domain/labels/LabelRows.svelte	Removes prefix decoration/padding from label key input rows.
src/lib/domain/labels/LabelFacets.svelte	Updates labels facet heading to remove prefix reference.

Comments suppressed due to low confidence (1)

src/lib/domain/labels/labels.ts:7

• The new CHARSET allows '/', and since labelValueError uses the same CHARSET this change also permits slashes in label values (likely invalid for Kubernetes-style labels). It also makes key validation reuse the value-oriented error message. Consider keeping the value charset unchanged and introducing a key-specific charset/message that allows '/'.

const CHARSET = /^[a-zA-Z0-9._/-]+$/;
const CHARSET_MESSAGE = 'Must consist of letters, numbers, hyphens, underscores, or dots';

export interface Label {
	key: string;

[Copilot]

Pull request overview

Copilot reviewed 7 out of 7 changed files in this pull request and generated 3 comments.

[Copilot]

Pull request overview

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Comments suppressed due to low confidence (1)

src/lib/domain/labels/labels.ts:22

• labelKeyError no longer deals with a “suffix” now that prefix handling has been removed; the parameter name is misleading in editor/tooling hints. Rename it to key (and adjust the local variable) to reflect the current behavior.

export function labelKeyError(suffix: string): string {
	const key = suffix.trim();
	if (key.length === 0) {
		return 'Key is required';
	}