[refactor] Add type imports across codebase for verbatim module syntax

- Update all Vue components to use type imports
- Update all TypeScript files to use type imports
- Update test files to use type imports
- Ensure compliance with TypeScript verbatim module syntax

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

Co-Authored-By: Claude <noreply@anthropic.com>

tests-ui/tests/litegraph/core/NodeSlot.test.ts

@@ -1,6 +1,9 @@
 import { describe, expect, it } from 'vitest'
 
-import { INodeInputSlot, INodeOutputSlot } from '@/lib/litegraph/src/litegraph'
+import {
+  type INodeInputSlot,
+  type INodeOutputSlot
+} from '@/lib/litegraph/src/litegraph'
 import {
   inputAsSerialisable,
   outputAsSerialisable