fix(search): cleanup review findings — dead code, FQN refs, naming

- Remove unused `key` param from ExpandableSection
- Replace FQN references with imports in AdvancedSearchPanel and SearchScreen
- Use MetadataEvent.KIND instead of magic `0`
- Remove dead `relayStatuses` collection (only `connectedRelays` used)
- Remove CachedUserResult sealed variant (never constructed)
- Rename SearchHint `identifier` param to `example`

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/search/SearchResult.kt

@@ -20,8 +20,6 @@
  */
 package com.vitorpamplona.amethyst.commons.search
 
-import com.vitorpamplona.amethyst.commons.model.User
-
 /**
  * Represents a parsed search result from Bech32/hex input.
  * Shared between Android and Desktop for consistent search behavior.
@@ -35,13 +33,6 @@ sealed class SearchResult {
         val displayId: String,
     ) : SearchResult()
 
-    /**
-     * User from local cache with full metadata.
-     */
-    data class CachedUserResult(
-        val user: User,
-    ) : SearchResult()
-
     /**
      * Note lookup from note1 or nevent.
      */

desktopApp/src/jvmMain/kotlin/com/vitorpamplona/amethyst/desktop/ui/SearchScreen.kt

@@ -81,6 +81,8 @@ import androidx.compose.ui.unit.dp
 import com.vitorpamplona.amethyst.commons.model.User
 import com.vitorpamplona.amethyst.commons.search.AdvancedSearchBarState
 import com.vitorpamplona.amethyst.commons.search.QuerySerializer
+import com.vitorpamplona.amethyst.commons.search.SavedSearch
+import com.vitorpamplona.amethyst.commons.search.SearchQuery
 import com.vitorpamplona.amethyst.commons.search.SearchResult
 import com.vitorpamplona.amethyst.commons.search.SearchResultFilter
 import com.vitorpamplona.amethyst.commons.search.parseSearchInput
@@ -121,7 +123,6 @@ fun SearchScreen(
         }
     }
 
-    val relayStatuses by relayManager.relayStatuses.collectAsState()
     val connectedRelays by relayManager.connectedRelays.collectAsState()
     val displayText by state.displayText.collectAsState()
     val query by state.query.collectAsState()
@@ -149,8 +150,7 @@ fun SearchScreen(
             relays = connectedRelays,
             searchQuery =
                 debouncedQuery.text.ifBlank {
-                    com.vitorpamplona.amethyst.commons.search.QuerySerializer
+                    QuerySerializer.serialize(debouncedQuery)
-                        .serialize(debouncedQuery)
                 },
             limit = 20,
             onEvent = { event, _, _, _ ->
@@ -185,7 +185,7 @@ fun SearchScreen(
             relays = connectedRelays,
             onEvent = { event, _, _, _ ->
                 // Skip metadata events (handled by people search)
-                if (event.kind == 0) return@SubscriptionConfig
+                if (event.kind == MetadataEvent.KIND) return@SubscriptionConfig
                 val filtered = SearchResultFilter.filter(listOf(event), debouncedQuery)
                 if (filtered.isNotEmpty()) {
                     state.addNoteResults(filtered)
@@ -407,9 +407,9 @@ fun SearchScreen(
 
 @Composable
 private fun SearchEmptyState(
-    historyItems: List<com.vitorpamplona.amethyst.commons.search.SearchQuery>,
+    historyItems: List<SearchQuery>,
-    savedSearches: List<com.vitorpamplona.amethyst.commons.search.SavedSearch>,
+    savedSearches: List<SavedSearch>,
-    onLoadQuery: (com.vitorpamplona.amethyst.commons.search.SearchQuery) -> Unit,
+    onLoadQuery: (SearchQuery) -> Unit,
     onDeleteSaved: (String) -> Unit,
     onClearHistory: () -> Unit,
 ) {
@@ -542,7 +542,7 @@ private fun SearchEmptyState(
 
 @Composable
 private fun SearchHint(
-    identifier: String,
+    example: String,
     description: String,
 ) {
     Row(
@@ -550,7 +550,7 @@ private fun SearchHint(
         horizontalArrangement = Arrangement.SpaceBetween,
     ) {
         Text(
-            identifier,
+            example,
             style = MaterialTheme.typography.bodySmall,
             fontFamily = FontFamily.Monospace,
             color = MaterialTheme.colorScheme.primary,
@@ -578,7 +578,6 @@ private fun SearchResultCard(
                 .clickable {
                     when (result) {
                         is SearchResult.UserResult -> onNavigateToProfile(result.pubKeyHex)
-                        is SearchResult.CachedUserResult -> onNavigateToProfile(result.user.pubkeyHex)
                         is SearchResult.NoteResult -> onNavigateToThread(result.noteIdHex)
                         is SearchResult.AddressResult -> onNavigateToThread("${result.kind}:${result.pubKeyHex}:${result.dTag}")
                         is SearchResult.HashtagResult -> onNavigateToHashtag(result.hashtag)
@@ -598,7 +597,6 @@ private fun SearchResultCard(
                 imageVector =
                     when (result) {
                         is SearchResult.UserResult -> Icons.Default.Person
-                        is SearchResult.CachedUserResult -> Icons.Default.Person
                         is SearchResult.NoteResult -> Icons.Default.Description
                         is SearchResult.AddressResult -> Icons.Default.Description
                         is SearchResult.HashtagResult -> Icons.Default.Tag
@@ -612,7 +610,6 @@ private fun SearchResultCard(
                 Text(
                     when (result) {
                         is SearchResult.UserResult -> "User Profile"
-                        is SearchResult.CachedUserResult -> result.user.toBestDisplayName()
                         is SearchResult.NoteResult -> "Note"
                         is SearchResult.AddressResult -> "Event (kind ${result.kind})"
                         is SearchResult.HashtagResult -> "#${result.hashtag}"
@@ -623,7 +620,6 @@ private fun SearchResultCard(
                 Text(
                     when (result) {
                         is SearchResult.UserResult -> result.displayId
-                        is SearchResult.CachedUserResult -> result.user.pubkeyDisplayHex()
                         is SearchResult.NoteResult -> result.displayId
                         is SearchResult.AddressResult -> result.displayId
                         is SearchResult.HashtagResult -> "Search posts with this hashtag"

desktopApp/src/jvmMain/kotlin/com/vitorpamplona/amethyst/desktop/ui/search/AdvancedSearchPanel.kt

@@ -56,7 +56,9 @@ import androidx.compose.ui.input.key.Key
 import androidx.compose.ui.input.key.key
 import androidx.compose.ui.input.key.onKeyEvent
 import androidx.compose.ui.unit.dp
+import com.vitorpamplona.amethyst.commons.search.DateUtils
 import com.vitorpamplona.amethyst.commons.search.KindRegistry
+import com.vitorpamplona.amethyst.commons.search.QueryParser
 import com.vitorpamplona.amethyst.commons.search.SearchQuery
 
 @OptIn(ExperimentalLayoutApi::class)
@@ -243,16 +245,14 @@ private fun DateRangeFields(
     var sinceText by remember(since) {
         mutableStateOf(
             since?.let {
-                com.vitorpamplona.amethyst.commons.search.QuerySerializer
+                DateUtils.timestampToDate(it)
-                    .timestampToDate(it)
             } ?: "",
         )
     }
     var untilText by remember(until) {
         mutableStateOf(
             until?.let {
-                com.vitorpamplona.amethyst.commons.search.QuerySerializer
+                DateUtils.timestampToDate(it)
-                    .timestampToDate(it)
             } ?: "",
         )
     }
@@ -272,8 +272,7 @@ private fun DateRangeFields(
                 onValueChange = {
                     sinceText = it
                     val ts =
-                        com.vitorpamplona.amethyst.commons.search.QueryParser
+                        QueryParser.parseDateToTimestamp(it)
-                            .parseDateToTimestamp(it)
                     onChanged(ts, until)
                 },
                 modifier = Modifier.fillMaxWidth(),
@@ -292,8 +291,7 @@ private fun DateRangeFields(
                 onValueChange = {
                     untilText = it
                     val ts =
-                        com.vitorpamplona.amethyst.commons.search.QueryParser
+                        QueryParser.parseDateToTimestamp(it)
-                            .parseDateToTimestamp(it)
                     onChanged(since, ts)
                 },
                 modifier = Modifier.fillMaxWidth(),

desktopApp/src/jvmMain/kotlin/com/vitorpamplona/amethyst/desktop/ui/search/SearchResultsList.kt

@@ -118,7 +118,6 @@ fun SearchResultsList(
                 item(key = "people-expand") {
                     ExpandableSection(
                         remaining = people.drop(5),
-                        key = { "person-more-${it.pubkeyHex}" },
                     ) { user ->
                         UserSearchCard(
                             user = user,
@@ -145,7 +144,6 @@ fun SearchResultsList(
                 item(key = "notes-expand") {
                     ExpandableSection(
                         remaining = textNotes.drop(5),
-                        key = { "note-more-${it.id}" },
                     ) { event ->
                         NotePreviewCard(event = event, onClick = { onNavigateToThread(event.id) })
                     }
@@ -168,7 +166,6 @@ fun SearchResultsList(
                 item(key = "articles-expand") {
                     ExpandableSection(
                         remaining = articles.drop(5),
-                        key = { "article-more-${it.id}" },
                     ) { event ->
                         NotePreviewCard(event = event, onClick = { onNavigateToThread(event.id) })
                     }
@@ -277,7 +274,6 @@ private fun NotePreviewCard(
 @Composable
 private fun <T> ExpandableSection(
     remaining: List<T>,
-    key: (T) -> String,
     content: @Composable (T) -> Unit,
 ) {
     var expanded by remember { mutableStateOf(false) }