Road to No explicit any: Group 8 (part 7) test files (#8459)

## Summary

This PR removes unsafe type assertions ("as unknown as Type") from test
files and improves type safety across the codebase.

### Key Changes

#### Type Safety Improvements
- Removed improper `as unknown as Type` patterns from 17 test files in
Group 8 part 7
- Replaced with proper TypeScript patterns using factory functions and
Mock types
- Fixed createTestingPinia usage in test files (was incorrectly using
createPinia)
- Fixed vi.hoisted pattern for mockSetDirty in viewport tests  
- Fixed vi.doMock lint issues with vi.mock and vi.hoisted pattern
- Retained necessary `as unknown as` casts only for complex mock objects
where direct type assertions would fail

### Files Changed

Test files (Group 8 part 7 - services, stores, utils):
- src/services/nodeOrganizationService.test.ts
- src/services/providers/algoliaSearchProvider.test.ts
- src/services/providers/registrySearchProvider.test.ts
- src/stores/comfyRegistryStore.test.ts
- src/stores/domWidgetStore.test.ts
- src/stores/executionStore.test.ts
- src/stores/firebaseAuthStore.test.ts
- src/stores/modelToNodeStore.test.ts
- src/stores/queueStore.test.ts
- src/stores/subgraphNavigationStore.test.ts
- src/stores/subgraphNavigationStore.viewport.test.ts
- src/stores/subgraphStore.test.ts
- src/stores/systemStatsStore.test.ts
- src/stores/workspace/nodeHelpStore.test.ts
- src/utils/colorUtil.test.ts
- src/utils/executableGroupNodeChildDTO.test.ts

Source files:
- src/stores/modelStore.ts - Improved type handling

### Testing
- All TypeScript type checking passes (`pnpm typecheck`)
- All affected test files pass (`pnpm test:unit`)
- Linting passes without errors (`pnpm lint`)
- Code formatting applied (`pnpm format`)

Part of the "Road to No Explicit Any" initiative, cleaning up type
casting issues from branch `fix/remove-any-types-part8`.

### Previous PRs in this series:
- Part 2: #7401
- Part 3: #7935
- Part 4: #7970
- Part 5: #8064
- Part 6: #8083
- Part 7: #8092
- Part 8 Group 1: #8253
- Part 8 Group 2: #8258
- Part 8 Group 3: #8304
- Part 8 Group 4: #8314
- Part 8 Group 5: #8329
- Part 8 Group 6: #8344
- Part 8 Group 7: #8459 (this PR)

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-8459-Road-to-No-explicit-any-Group-8-part-7-test-files-2f86d73d36508114ad28d82e72a3a5e9)
by [Unito](https://www.unito.io)

src/utils/colorUtil.test.ts

@@ -1,5 +1,6 @@
 import { describe, expect, it, vi } from 'vitest'
 
+import type { ColorAdjustOptions } from '@/utils/colorUtil'
 import {
   adjustColor,
   hexToRgb,
@@ -22,13 +23,16 @@ interface ColorTestCase {
 type ColorFormat = 'hex' | 'rgb' | 'rgba' | 'hsl' | 'hsla'
 
 vi.mock('es-toolkit/compat', () => ({
-  memoize: (fn: any) => fn
+  memoize: <T extends (...args: unknown[]) => unknown>(fn: T) => fn
 }))
 
 const targetOpacity = 0.5
 const targetLightness = 0.5
 
-const assertColorVariationsMatch = (variations: string[], adjustment: any) => {
+const assertColorVariationsMatch = (
+  variations: string[],
+  adjustment: ColorAdjustOptions
+) => {
   for (let i = 0; i < variations.length - 1; i++) {
     expect(adjustColor(variations[i], adjustment)).toBe(
       adjustColor(variations[i + 1], adjustment)

src/utils/executableGroupNodeChildDTO.test.ts

@@ -7,6 +7,7 @@ import type {
   LGraphNode
 } from '@/lib/litegraph/src/litegraph'
 import { ExecutableGroupNodeChildDTO } from '@/utils/executableGroupNodeChildDTO'
+import { createMockLGraphNode } from './__tests__/litegraphTestUtils'
 
 describe('ExecutableGroupNodeChildDTO', () => {
   let mockNode: LGraphNode
@@ -16,18 +17,18 @@ describe('ExecutableGroupNodeChildDTO', () => {
 
   beforeEach(() => {
     // Create mock nodes
-    mockNode = {
+    mockNode = createMockLGraphNode({
       id: '3', // Simple node ID for most tests
       graph: {},
       getInputNode: vi.fn(),
       getInputLink: vi.fn(),
       inputs: []
-    } as any
+    })
 
-    mockInputNode = {
+    mockInputNode = createMockLGraphNode({
       id: '1',
       graph: {}
-    } as any
+    })
 
     // Create the nodesByExecutionId map
     mockNodesByExecutionId = new Map()
@@ -38,7 +39,7 @@ describe('ExecutableGroupNodeChildDTO', () => {
   describe('resolveInput', () => {
     it('should resolve input from external node (node outside the group)', () => {
       // Setup: Group node child with ID '10:3'
-      const groupNodeChild = {
+      const groupNodeChild = createMockLGraphNode({
         id: '10:3',
         graph: {},
         getInputNode: vi.fn().mockReturnValue(mockInputNode),
@@ -46,7 +47,7 @@ describe('ExecutableGroupNodeChildDTO', () => {
           origin_slot: 0
         }),
         inputs: []
-      } as any
+      })
 
       // External node with ID '1'
       const externalNodeDto = {
@@ -75,19 +76,19 @@ describe('ExecutableGroupNodeChildDTO', () => {
 
     it('should resolve input from internal node (node inside the same group)', () => {
       // Setup: Group node child with ID '10:3'
-      const groupNodeChild = {
+      const groupNodeChild = createMockLGraphNode({
         id: '10:3',
         graph: {},
         getInputNode: vi.fn(),
         getInputLink: vi.fn(),
         inputs: []
-      } as any
+      })
 
       // Internal node with ID '10:2'
-      const internalInputNode = {
+      const internalInputNode = createMockLGraphNode({
         id: '10:2',
         graph: {}
-      } as LGraphNode
+      })
 
       const internalNodeDto = {
         id: '2',
@@ -97,10 +98,10 @@ describe('ExecutableGroupNodeChildDTO', () => {
       // Internal nodes are stored with just their index
       mockNodesByExecutionId.set('2', internalNodeDto)
 
-      groupNodeChild.getInputNode.mockReturnValue(internalInputNode)
-      groupNodeChild.getInputLink.mockReturnValue({
+      vi.mocked(groupNodeChild.getInputNode).mockReturnValue(internalInputNode)
+      vi.mocked(groupNodeChild.getInputLink).mockReturnValue({
         origin_slot: 1
-      })
+      } as ReturnType<LGraphNode['getInputLink']>)
 
       const dto = new ExecutableGroupNodeChildDTO(
         groupNodeChild,
@@ -172,7 +173,7 @@ describe('ExecutableGroupNodeChildDTO', () => {
 
     it('should throw error for group nodes inside subgraphs (unsupported)', () => {
       // Setup: Group node child inside a subgraph (execution ID has more than 2 segments)
-      const nestedGroupNode = {
+      const nestedGroupNode = createMockLGraphNode({
         id: '1:2:3', // subgraph:groupnode:innernode
         graph: {},
         getInputNode: vi.fn().mockReturnValue(mockInputNode),
@@ -180,7 +181,7 @@ describe('ExecutableGroupNodeChildDTO', () => {
           origin_slot: 0
         }),
         inputs: []
-      } as any
+      })
 
       // Create DTO with deeply nested path to simulate group node inside subgraph
       const dto = new ExecutableGroupNodeChildDTO(