Add copy-to-clipboard button for summarized results

[howardpen9]

Feature Request

After summarizing a URL/YouTube/Podcast/file, it would be very convenient to have a copy-to-clipboard button next to the parsed result.

Use Case

When using Summarize (either CLI or Chrome Extension), users often want to paste the summary into notes, docs, or messages. Currently this requires manually selecting and copying the text.

Suggested Implementation

• Add a "Copy" button (clipboard icon) next to each summarized result
• Clicking it copies the full summary text to clipboard
• Show brief feedback (e.g. "Copied!" tooltip) on success

Context

• For the Chrome Extension: a small copy icon button in the result panel
• For the CLI: could optionally pipe output or add a --copy flag

This small UX improvement would save a lot of friction in the daily workflow.