refactor: remove unnecessary comments from test files (#8974)

Fixes #8705

Removes redundant code comments from test files that restate what the
code already expresses through clear naming. Focuses on comments that
label obvious sections or restate assertions, while keeping comments
that explain non-obvious behavior or workarounds.

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-8974-refactor-remove-unnecessary-comments-from-test-files-30c6d73d3650814a826fd78da7d0d338)
by [Unito](https://www.unito.io)

src/stores/modelToNodeStore.test.ts

@@ -44,7 +44,6 @@ const EXPECTED_DEFAULT_TYPES = [
 
 type NodeDefStoreType = ReturnType<typeof useNodeDefStore>
 
-// Create minimal but valid ComfyNodeDefImpl for testing
 function createMockNodeDef(name: string): ComfyNodeDefImpl {
   const def: ComfyNodeDefV1 = {
     name,
@@ -82,7 +81,6 @@ const MOCK_NODE_NAMES = [
   'FL_ChatterboxTurboTTS',
   'FL_ChatterboxMultilingualTTS',
   'FL_ChatterboxVC',
-  // New extension node mappings
   'LatentUpscaleModelLoader',
   'DownloadAndLoadSAM2Model',
   'SAMLoader',
@@ -98,8 +96,6 @@ const mockNodeDefsByName = Object.fromEntries(
   MOCK_NODE_NAMES.map((name) => [name, createMockNodeDef(name)])
 )
 
-// Mock nodeDefStore dependency - modelToNodeStore relies on this for registration
-// Most tests expect this to be populated; tests that need empty state can override
 vi.mock('@/stores/nodeDefStore', async (importOriginal) => {
   const original = await importOriginal<NodeDefStoreType>()
 
@@ -139,7 +135,6 @@ describe('useModelToNodeStore', () => {
 
       const provider = modelToNodeStore.getNodeProvider('checkpoints')
       expect(provider).toBeDefined()
-      // After asserting provider is defined, we can safely access its properties
       expect(provider?.nodeDef?.name).toBe('CheckpointLoaderSimple')
       expect(provider?.key).toBe('ckpt_name')
     })
@@ -155,7 +150,6 @@ describe('useModelToNodeStore', () => {
       modelToNodeStore.registerDefaults()
 
       const provider = modelToNodeStore.getNodeProvider('checkpoints')
-      // Using optional chaining for safety since getNodeProvider() can return undefined
       expect(provider?.nodeDef?.name).toBe('CheckpointLoaderSimple')
     })
 
@@ -359,7 +353,6 @@ describe('useModelToNodeStore', () => {
 
       const retrieved = modelToNodeStore.getNodeProvider('custom_type')
       expect(retrieved).toStrictEqual(customProvider)
-      // Optional chaining for consistency with getNodeProvider() return type
       expect(retrieved?.key).toBe('custom_key')
     })
 
@@ -408,7 +401,6 @@ describe('useModelToNodeStore', () => {
 
       const provider = modelToNodeStore.getNodeProvider('test_type')
       expect(provider).toBeDefined()
-      // After asserting provider is defined, we can safely access its properties
       expect(provider!.nodeDef.name).toBe('UNETLoader')
       expect(provider!.key).toBe('test_param')
     })
@@ -474,7 +466,6 @@ describe('useModelToNodeStore', () => {
     })
 
     it('should not register when nodeDefStore is empty', () => {
-      // Create fresh Pinia for this test to avoid state persistence
       setActivePinia(createTestingPinia({ stubActions: false }))
 
       vi.mocked(useNodeDefStore, { partial: true }).mockReturnValue({
@@ -484,7 +475,6 @@ describe('useModelToNodeStore', () => {
       modelToNodeStore.registerDefaults()
       expect(modelToNodeStore.getNodeProvider('checkpoints')).toBeUndefined()
 
-      // Restore original mock for subsequent tests
       vi.mocked(useNodeDefStore, { partial: true }).mockReturnValue({
         nodeDefsByName: mockNodeDefsByName
       })
@@ -499,7 +489,6 @@ describe('useModelToNodeStore', () => {
     })
 
     it('should return empty Record when nodeDefStore is empty', () => {
-      // Create fresh Pinia for this test to avoid state persistence
       setActivePinia(createTestingPinia({ stubActions: false }))
 
       vi.mocked(useNodeDefStore, { partial: true }).mockReturnValue({
@@ -510,7 +499,6 @@ describe('useModelToNodeStore', () => {
       const result = modelToNodeStore.getRegisteredNodeTypes()
       expect(result).toStrictEqual({})
 
-      // Restore original mock for subsequent tests
       vi.mocked(useNodeDefStore, { partial: true }).mockReturnValue({
         nodeDefsByName: mockNodeDefsByName
       })
@@ -601,7 +589,6 @@ describe('useModelToNodeStore', () => {
       const modelToNodeStore = useModelToNodeStore()
       modelToNodeStore.registerDefaults()
 
-      // These should not throw but return undefined
       expect(modelToNodeStore.getCategoryForNodeType(null!)).toBeUndefined()
       expect(
         modelToNodeStore.getCategoryForNodeType(undefined!)