The profile view now has two clipboard actions:
* 'copy did' — copies the bare DID to the system clipboard
* 'copy at-uri' — copies 'at://<did>/app.twi.post' as a shareable link
Both surface a toast confirmation via the existing
maarcadetweet:notification event, so the user gets a small
'copied: ...' toast for confirmation. Right-click on a toast
still dismisses without action.
The copyToClipboard helper is in App.svelte (not pushed to
client.ts) because it only uses the browser navigator API.
tomdebone
9eda0c2449