Road to No Explicit Any Part 8 (Group4) (#8314)

## Summary

Removes all `as unknown as Type` double-cast patterns from group 4 files
as part of the ongoing TypeScript cleanup effort.

## Changes

### Type Safety Improvements
- Replaced `as unknown as Type` with `as Partial<Type> as Type` for
valid mock objects
- Added proper null/undefined validation in `Subgraph.addInput()` and
`Subgraph.addOutput()`
- Updated test expectations to match new validation behavior

### Files Modified (17 files)
**Core Implementation:**
- `src/lib/litegraph/src/LGraph.ts` - Added input validation for
subgraph add methods
- `src/lib/litegraph/src/interfaces.ts` - Cleaned up type definitions
- `src/lib/litegraph/src/subgraph/ExecutableNodeDTO.ts` - Improved type
safety
- `src/platform/telemetry/types.ts` - Better type definitions
- `src/platform/telemetry/utils/surveyNormalization.ts` - Type cleanup

**Test Files:**
- `src/lib/litegraph/src/subgraph/SubgraphEdgeCases.test.ts` - Updated
to expect validation errors
- `src/lib/litegraph/src/subgraph/SubgraphMemory.test.ts` - Proper mock
typing
- `src/lib/litegraph/src/subgraph/SubgraphNode.test.ts` - Type
improvements
- `src/lib/litegraph/src/subgraph/SubgraphNode.titleButton.test.ts` -
Mock type fixes
- `src/lib/litegraph/src/subgraph/SubgraphSlotVisualFeedback.test.ts` -
Proper typing
- `src/lib/litegraph/src/subgraph/SubgraphWidgetPromotion.test.ts` -
Type cleanup
- `src/lib/litegraph/src/utils/textUtils.test.ts` - Mock improvements
- `src/lib/litegraph/src/widgets/ComboWidget.test.ts` - Type safety
updates
- `src/platform/assets/services/assetService.test.ts` - Type
improvements
- `src/platform/settings/composables/useSettingSearch.test.ts` - Mock
type fixes
- `src/platform/settings/settingStore.test.ts` - Type cleanup
- `src/platform/telemetry/utils/__tests__/surveyNormalization.test.ts` -
Type improvements

## Testing
- ✅ All modified test files pass
- ✅ TypeScript compilation passes
- ✅ Linting passes

## Related
Part of the TypeScript cleanup effort. Follows patterns from groups 1-3.

Previous PRs:
- Group 1: (merged)
- Group 2: (merged)
- Group 3: #8304

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-8314-Road-to-No-Explicit-Any-Part-8-Group4-2f46d73d36508172a9d4e53b2c5cbadd)
by [Unito](https://www.unito.io)

src/platform/settings/composables/useSettingSearch.test.ts

@@ -8,6 +8,17 @@ import {
   getSettingInfo,
   useSettingStore
 } from '@/platform/settings/settingStore'
+import type { SettingTreeNode } from '@/platform/settings/settingStore'
+
+// Test-specific type for mock settings
+interface MockSettingParams {
+  id: string
+  name: string
+  type: string
+  defaultValue: unknown
+  category?: string[]
+  deprecated?: boolean
+}
 
 // Mock dependencies
 vi.mock('@/i18n', () => ({
@@ -20,8 +31,8 @@ vi.mock('@/platform/settings/settingStore', () => ({
 }))
 
 describe('useSettingSearch', () => {
-  let mockSettingStore: any
-  let mockSettings: any
+  let mockSettingStore: ReturnType<typeof useSettingStore>
+  let mockSettings: Record<string, MockSettingParams>
 
   beforeEach(() => {
     setActivePinia(createPinia())
@@ -70,11 +81,11 @@ describe('useSettingSearch', () => {
     // Mock setting store
     mockSettingStore = {
       settingsById: mockSettings
-    }
+    } as ReturnType<typeof useSettingStore>
     vi.mocked(useSettingStore).mockReturnValue(mockSettingStore)
 
     // Mock getSettingInfo function
-    vi.mocked(getSettingInfo).mockImplementation((setting: any) => {
+    vi.mocked(getSettingInfo).mockImplementation((setting) => {
       const parts = setting.category || setting.id.split('.')
       return {
         category: parts[0] ?? 'Other',
@@ -301,8 +312,8 @@ describe('useSettingSearch', () => {
       const search = useSettingSearch()
       search.filteredSettingIds.value = ['Category.Setting1', 'Other.Setting3']
 
-      const activeCategory = { label: 'Category' } as any
-      const results = search.getSearchResults(activeCategory)
+      const activeCategory: Partial<SettingTreeNode> = { label: 'Category' }
+      const results = search.getSearchResults(activeCategory as SettingTreeNode)
 
       expect(results).toEqual([
         {

src/platform/settings/settingStore.test.ts

@@ -6,6 +6,7 @@ import {
   useSettingStore
 } from '@/platform/settings/settingStore'
 import type { SettingParams } from '@/platform/settings/types'
+import type { Settings } from '@/schemas/apiSchema'
 import { api } from '@/scripts/api'
 import { app } from '@/scripts/app'
 
@@ -45,7 +46,9 @@ describe('useSettingStore', () => {
   describe('loadSettingValues', () => {
     it('should load settings from API', async () => {
       const mockSettings = { 'test.setting': 'value' }
-      vi.mocked(api.getSettings).mockResolvedValue(mockSettings as any)
+      vi.mocked(api.getSettings).mockResolvedValue(
+        mockSettings as Partial<Settings> as Settings
+      )
 
       await store.loadSettingValues()