[ chebizarro/nostrc ] fix: deduplicate notifications and show npub instead of hex pubkey
Notifications from the same actor+type (e.g. repeated "started
following you" from the same pubkey) are now deduplicated — only the
latest event is shown. Uses a secondary hash table keyed by
"type:actor_pubkey" to track and replace duplicates.
Also changes the pubkey fallback display from truncated hex
("7d4417d5…") to truncated npub bech32 ("npub1abc…wxyz") which is
recognizable as a Nostr identity.

GitHub
fix: deduplicate notifications and show npub instead of hex pubkey · chebizarro/nostrc@8cef666
Notifications from the same actor+type (e.g. repeated "started
following you" from the same pubkey) are now deduplicated — only the
lat...
