feat: enable verbatimModuleSyntax in TypeScript config (#5533)

## Summary
- Enable `verbatimModuleSyntax` compiler option in TypeScript
configuration
- Update all type imports to use explicit `import type` syntax
- This change will Improve tree-shaking and bundler compatibility

## Motivation
The `verbatimModuleSyntax` option ensures that type-only imports are
explicitly marked with the `type` keyword. This:
- Makes import/export intentions clearer
- Improves tree-shaking by helping bundlers identify what can be safely
removed
- Ensures better compatibility with modern bundlers
- Follows TypeScript best practices for module syntax

## Changes
- Added `"verbatimModuleSyntax": true` to `tsconfig.json`
- Updated another 48+ files to use explicit `import type` syntax for
type-only imports
- No functional changes, only import/export syntax improvements

## Test Plan
- [x] TypeScript compilation passes
- [x] Build completes successfully  
- [x] Tests pass
- [ ] No runtime behavior changes

🤖 Generated with [Claude Code](https://claude.ai/code)

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-5533-feat-enable-verbatimModuleSyntax-in-TypeScript-config-26d6d73d36508190b424ef9b379b5130)
by [Unito](https://www.unito.io)

src/extensions/core/groupNode.ts

@@ -11,16 +11,16 @@ import {
 } from '@/lib/litegraph/src/litegraph'
 import { useToastStore } from '@/platform/updates/common/toastStore'
 import {
-  ComfyLink,
-  ComfyNode,
-  ComfyWorkflowJSON
+  type ComfyLink,
+  type ComfyNode,
+  type ComfyWorkflowJSON
 } from '@/platform/workflow/validation/schemas/workflowSchema'
 import type { ComfyNodeDef } from '@/schemas/nodeDefSchema'
 import { useDialogService } from '@/services/dialogService'
 import { useExecutionStore } from '@/stores/executionStore'
 import { useNodeDefStore } from '@/stores/nodeDefStore'
 import { useWidgetStore } from '@/stores/widgetStore'
-import { ComfyExtension } from '@/types/comfy'
+import { type ComfyExtension } from '@/types/comfy'
 import { ExecutableGroupNodeChildDTO } from '@/utils/executableGroupNodeChildDTO'
 import { GROUP } from '@/utils/executableGroupNodeDto'
 import { deserialiseAndCreate, serialise } from '@/utils/vintageClipboard'