App.vue fell back to the first 8 hex chars of the pubkey whenever
displayName wasn't set (the common case right after nostr sign-in,
before any kind-0 metadata has been fetched) — indistinguishable
between different identities at a glance, and not a form anyone
recognizes as "their" nostr identity. nostr-tools was already a
frontend dependency; just wasn't used for npub encoding anywhere.
Full hex pubkey is still available via a title tooltip on hover.
ssmithx
1ca688adda