fix: drop relay.damus.io from default relay lists ahead of shutdown

relay.damus.io is being decommissioned, so remove it from every runtime
default/fallback relay set to stop the app and amy from wasting connection
slots on a dead host:

- commons Constants: remove `damus`; it dropped out of `bootstrapInbox`
  (default NIP-65 inbox) and `eventFinderRelays` (default outbox/fallback),
  both still carrying 6 healthy relays.
- ChessConfig: remove damus from CHESS_RELAYS / CHESS_RELAY_NAMES, leaving
  the 3 relays the FETCH_TIMEOUT comment already assumes.
- desktop DefaultRelays: remove damus and the also-dead relay.snort.social.
- desktop FollowPacks DISCOVERY_RELAYS: remove damus.
- amy NipCommand SEARCH_RELAYS: swap damus for the NIP-50-capable nostr.wine.

Comments, @Preview sample data, and test fixtures that mention damus.io are
left untouched — they have no runtime effect.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011Ttcqa3V78bugGraGhtehj

cli/src/main/kotlin/com/vitorpamplona/amethyst/cli/commands/NipCommand.kt

@@ -56,7 +56,7 @@ object NipCommand {
 
     // NIP-50-capable relays for the Nostr fallback (search isn't universal).
     private val SEARCH_RELAYS =
-        listOf("wss://relay.nostr.band", "wss://relay.damus.io")
+        listOf("wss://relay.nostr.band", "wss://nostr.wine")
             .mapNotNull { RelayUrlNormalizer.normalizeOrNull(it) }
             .toSet()