fix: actually fetch ChannelCreateEvent (kind 40) and widen the relay set

filterMissingChannelsById had an inverted isEmpty() check that emitted
zero filters, so kind 40 was never requested from any relay. Channels
discovered from kind 42 messages stayed as empty stubs unless the
creator also happened to publish a kind 41 metadata update findable on
the same relay — which is why most cards in the Public Chats feed
loaded with no name or picture.

Fix:
- Drop the inverted condition; mapOfSet guarantees non-empty values, so
  emit a RelayBasedFilter for every (relay, channelIds) entry.
- Widen the relay set per channel to include the user's search and
  indexer relay lists. Falls back to DefaultSearchRelayList /
  DefaultIndexerRelayList when those lists are empty.
- Plumb the Account through ChannelFinderQueryState so the assembler
  can read the search/indexer flows. Mirrors EventFinderQueryState.

amethyst/src/main/java/com/vitorpamplona/amethyst/service/relayClient/reqCommand/channel/ChannelFinderFilterAssemblyGroup.kt

@@ -23,6 +23,7 @@ package com.vitorpamplona.amethyst.service.relayClient.reqCommand.channel
 import androidx.compose.runtime.Stable
 import com.vitorpamplona.amethyst.commons.model.Channel
 import com.vitorpamplona.amethyst.commons.relayClient.composeSubscriptionManagers.ComposeSubscriptionManager
+import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.service.relayClient.reqCommand.channel.mixChatsLive.ChannelMetadataAndLiveActivityWatcherSubAssembler
 import com.vitorpamplona.amethyst.service.relayClient.reqCommand.channel.nip28PublicChats.ChannelLoaderSubAssembler
 import com.vitorpamplona.quartz.nip01Core.relay.client.INostrClient
@@ -31,6 +32,7 @@ import com.vitorpamplona.quartz.nip01Core.relay.client.INostrClient
 @Stable
 class ChannelFinderQueryState(
     val channel: Channel,
+    val account: Account,
 )
 
 @Stable

amethyst/src/main/java/com/vitorpamplona/amethyst/service/relayClient/reqCommand/channel/ChannelFinderFilterAssemblySubscription.kt

@@ -24,24 +24,26 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.remember
 import com.vitorpamplona.amethyst.commons.model.Channel
 import com.vitorpamplona.amethyst.commons.relayClient.subscriptions.LifecycleAwareKeyDataSourceSubscription
+import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
 
 @Composable
 fun ChannelFinderFilterAssemblerSubscription(
     channel: Channel,
     accountViewModel: AccountViewModel,
-) = ChannelFinderFilterAssemblerSubscription(channel, accountViewModel.dataSources().channelFinder)
+) = ChannelFinderFilterAssemblerSubscription(channel, accountViewModel.account, accountViewModel.dataSources().channelFinder)
 
 @Composable
 fun ChannelFinderFilterAssemblerSubscription(
     channel: Channel,
+    account: Account,
     dataSource: ChannelFinderFilterAssemblyGroup,
 ) {
     // different screens get different states
     // even if they are tracking the same tag.
     val state =
-        remember(channel) {
-            ChannelFinderQueryState(channel)
+        remember(channel, account) {
+            ChannelFinderQueryState(channel, account)
         }
 
     LifecycleAwareKeyDataSourceSubscription(state, dataSource)

amethyst/src/main/java/com/vitorpamplona/amethyst/service/relayClient/reqCommand/channel/nip28PublicChats/FilterChannelMetadataCreationById.kt

@@ -20,6 +20,8 @@
  */
 package com.vitorpamplona.amethyst.service.relayClient.reqCommand.channel.nip28PublicChats
 
+import com.vitorpamplona.amethyst.commons.defaults.DefaultIndexerRelayList
+import com.vitorpamplona.amethyst.commons.defaults.DefaultSearchRelayList
 import com.vitorpamplona.amethyst.commons.model.nip28PublicChats.PublicChatChannel
 import com.vitorpamplona.amethyst.service.relayClient.reqCommand.channel.ChannelFinderQueryState
 import com.vitorpamplona.quartz.nip01Core.relay.client.pool.RelayBasedFilter
@@ -34,29 +36,28 @@ fun filterMissingChannelsById(keys: List<ChannelFinderQueryState>): List<RelayBa
         mapOfSet {
             keys.forEach { key ->
                 if (key.channel is PublicChatChannel && key.channel.event == null) {
-                    key.channel.relays().forEach {
+                    val searchRelays =
+                        key.account.searchRelayList.flow.value
+                            .ifEmpty { DefaultSearchRelayList }
+                    val indexerRelays =
+                        key.account.indexerRelayList.flow.value
+                            .ifEmpty { DefaultIndexerRelayList }
+
+                    (key.channel.relays() + searchRelays + indexerRelays).forEach {
                         add(it, key.channel.idHex)
                     }
-                } else {
-                    null
                 }
             }
         }
 
-    if (relayPerChannel.isEmpty()) return emptyList()
-
-    return relayPerChannel.mapNotNull {
-        if (it.value.isEmpty()) {
-            RelayBasedFilter(
-                relay = it.key,
-                filter =
-                    Filter(
-                        kinds = filterMissingPublicChannelsByIdKinds,
-                        ids = it.value.sorted(),
-                    ),
-            )
-        } else {
-            null
-        }
+    return relayPerChannel.map { (relay, channelIds) ->
+        RelayBasedFilter(
+            relay = relay,
+            filter =
+                Filter(
+                    kinds = filterMissingPublicChannelsByIdKinds,
+                    ids = channelIds.sorted(),
+                ),
+        )
     }
 }