Make the first scan empty state more helpful

[Muawiya-contact]

Goal

Improve the first empty state so new users understand what to scan.

The current text is safe and correct, but it could give one or two friendly examples.

Suggested copy direction

The empty state lives in:

app/src/App.jsx

Current idea:

<p>Run a read-only scan. Nothing is deleted — ever — without your review.</p>

Possible improved direction:

<p>
  Run a read-only scan of Downloads, a project folder, or another folder you want to understand.
  Nothing is deleted — ever — without your review.
</p>

Exact wording can be adjusted. Keep it short and calm.

Acceptance criteria

• The empty state gives helpful scan examples.
• The copy still makes the read-only safety promise clear.
• No implementation details are shown to normal users.

[AkashGowdaNC]

@Muawiya-contact This looks like a good next step. I'm currently finishing #165 (the safety language audit), and I'd love to take this on once that's merged. Let me know if that works.

[Muawiya-contact]

@AkashGowdaNC Now you can work on it.