Fix stale admin specs and expand Jest coverage

- Fix SettingsView/SegmentsView specs to match current dialog-based
  confirm flows instead of stale assumptions.
- Fix FeatureDetail delete confirmation: deleteConfirmName was
  referenced but never declared, so the type-to-confirm gate was dead
  code with no input or disabled binding.
- Extract the router's auth guard as authGuard so it can be tested
  directly instead of duplicated inline in specs; add missing
  allowAuthenticated and redirect-query coverage.
- Add specs for previously untested modules: api/client.ts (401
  refresh/retry/queueing), LoginView, RegisterView, AcceptInviteView,
  stores/theme.ts, utils/validation.ts, ConditionEditor, and
  RuleGroupEditor.

src/admin/tests/unit/components/segments/ConditionEditor.spec.ts

@@ -0,0 +1,94 @@
+import { describe, it, expect } from '@jest/globals';
+import { mount, type VueWrapper } from '@vue/test-utils';
+import ConditionEditor from '@/components/segments/ConditionEditor.vue';
+import type { SegmentCondition } from '@/types/api';
+
+function mountEditor(condition: SegmentCondition) {
+  return mount(ConditionEditor, { props: { condition } });
+}
+
+describe('ConditionEditor', () => {
+  describe('WhenThePropertyFieldIsChanged', () => {
+    it('ThenUpdateConditionIsEmittedWithTheNewProperty', async () => {
+      const condition: SegmentCondition = { property: 'plan', operator: 'Equal', value: 'beta' };
+      const wrapper = mountEditor(condition);
+
+      await (wrapper.findComponent('[data-testid="condition-property"]') as VueWrapper<any>).vm.$emit('update:modelValue', 'country');
+
+      expect(wrapper.emitted('update:condition')![0]).toEqual([{ property: 'country', operator: 'Equal', value: 'beta' }]);
+    });
+  });
+
+  describe('WhenTheOperatorIsChanged', () => {
+    it('ThenUpdateConditionIsEmittedWithTheNewOperator', async () => {
+      const condition: SegmentCondition = { property: 'plan', operator: 'Equal', value: 'beta' };
+      const wrapper = mountEditor(condition);
+
+      await (wrapper.findComponent('[data-testid="condition-operator"]') as VueWrapper<any>).vm.$emit('update:modelValue', 'NotEqual');
+
+      expect(wrapper.emitted('update:condition')![0]).toEqual([{ property: 'plan', operator: 'NotEqual', value: 'beta' }]);
+    });
+  });
+
+  describe('WhenTheValueFieldIsChanged', () => {
+    it('ThenUpdateConditionIsEmittedWithTheNewValue', async () => {
+      const condition: SegmentCondition = { property: 'plan', operator: 'Equal', value: 'beta' };
+      const wrapper = mountEditor(condition);
+
+      await (wrapper.findComponent('[data-testid="condition-value"]') as VueWrapper<any>).vm.$emit('update:modelValue', 'gamma');
+
+      expect(wrapper.emitted('update:condition')![0]).toEqual([{ property: 'plan', operator: 'Equal', value: 'gamma' }]);
+    });
+  });
+
+  describe('WhenTheOperatorNeedsNoValue', () => {
+    it.each(['IsTrue', 'IsFalse', 'IsSet', 'IsNotSet'] as const)(
+      'ThenNeitherTheValueFieldNorThePercentageSliderIsShownFor %s',
+      (operator) => {
+        const condition: SegmentCondition = { property: 'plan', operator, value: '' };
+        const wrapper = mountEditor(condition);
+
+        expect(wrapper.find('[data-testid="condition-value"]').exists()).toBe(false);
+        expect(wrapper.find('[data-testid="condition-percentage-slider"]').exists()).toBe(false);
+      },
+    );
+  });
+
+  describe('WhenTheOperatorIsPercentageSplit', () => {
+    it('ThenThePercentageSliderIsShownInsteadOfTheValueField', () => {
+      const condition: SegmentCondition = { property: 'userId', operator: 'PercentageSplit', value: '25' };
+      const wrapper = mountEditor(condition);
+
+      expect(wrapper.find('[data-testid="condition-percentage-slider"]').exists()).toBe(true);
+      expect(wrapper.find('[data-testid="condition-value"]').exists()).toBe(false);
+    });
+
+    it('ThenAnInvalidStoredValueRendersAsZero', () => {
+      const condition: SegmentCondition = { property: 'userId', operator: 'PercentageSplit', value: 'not-a-number' };
+      const wrapper = mountEditor(condition);
+
+      const slider = wrapper.findComponent('[data-testid="condition-percentage-slider"]') as VueWrapper<any>;
+      expect(slider.props('modelValue')).toBe(0);
+    });
+
+    it('ThenMovingTheSliderEmitsUpdateConditionWithTheValueAsAString', async () => {
+      const condition: SegmentCondition = { property: 'userId', operator: 'PercentageSplit', value: '25' };
+      const wrapper = mountEditor(condition);
+
+      await (wrapper.findComponent('[data-testid="condition-percentage-slider"]') as VueWrapper<any>).vm.$emit('update:modelValue', 60);
+
+      expect(wrapper.emitted('update:condition')![0]).toEqual([{ property: 'userId', operator: 'PercentageSplit', value: '60' }]);
+    });
+  });
+
+  describe('WhenTheRemoveButtonIsClicked', () => {
+    it('ThenRemoveIsEmitted', async () => {
+      const condition: SegmentCondition = { property: 'plan', operator: 'Equal', value: 'beta' };
+      const wrapper = mountEditor(condition);
+
+      await wrapper.find('[data-testid="remove-condition-btn"]').trigger('click');
+
+      expect(wrapper.emitted('remove')).toBeTruthy();
+    });
+  });
+});