Remove the `atlOrigin` parameter in the link (⚠️ possible privacy issue)

When linkifying issue keys like `[KEY-123]` the link has `atlOrigin` parameter added.

```
https://org.atlassian.net/browse/KEY-123?atlOrigin=qwertyuiopasdfghjklzxcvbnm1234567890QWERTYUIOPASDFGHJKLZXCVBNMqwertyuiopasdfghjklz
```

I suppose it's used for tracking purposes, but I don't want that. I want clean links without the tracking, as it can be a privacy issue.

```
https://org.atlassian.net/browse/KEY-123
```

It also helps keeps the copied link clean when we copy it and share it somewhere else, without an 82-character random string at the end of it.

Start by locating the code that linkifies issue keys and appends atlOrigin; the payload names no file or test, so inspect repository history and the replacement private implementation if available. Done means generated Jira links omit atlOrigin while preserving issue-key linking, with coverage for the clean URL.

Written by the indexing model from the issue text.