Add Vue Text Summarization Example

[SeanGallen]

Adds a new Vue.js example demonstrating text summarization. It uses Transformers.js and the Xenova/DistilBART-CNN model.

Changes:

• New Vue App (vue/): Complete text summarization application
  • Web Worker for model inference
  • Progress tracking UI
  • Streaming output

Usage:

cd vue && npm install && npm run dev