Polish huddles UI (#1041)

Author: klopez4212

crates/buzz-core/src/kind.rs

@@ -187,6 +187,9 @@ pub const KIND_PAIRING: u32 = 24134;
 pub const KIND_TYPING_INDICATOR: u32 = 20002;
 /// Ephemeral: owner-scoped encrypted agent observer telemetry and control frame.
 pub const KIND_AGENT_OBSERVER_FRAME: u32 = 24200;
+/// Ephemeral: huddle emoji reaction burst. Channel-scoped to the ephemeral
+/// huddle channel with an `h` tag; never stored in the timeline.
+pub const KIND_HUDDLE_REACTION: u32 = 24810;
 /// Ephemeral: mesh status report (desktop → relay). A relay member reports its
 /// current mesh serve availability + EndpointAddr(s) so the relay can project a
 /// sanitized, relay-signed kind:30621 discovery note keyed per reporter. Tagged
@@ -395,6 +398,7 @@ pub const ALL_KINDS: &[u32] = &[
     KIND_NIP29_GROUP_ROLES,
     KIND_PRESENCE_UPDATE,
     KIND_TYPING_INDICATOR,
+    KIND_HUDDLE_REACTION,
     KIND_MESH_STATUS_REPORT,
     KIND_MESH_CONNECT_REQUEST,
     KIND_MESH_CALL_ME_NOW,

desktop/src-tauri/src/huddle/mod.rs

@@ -427,6 +427,7 @@ async fn emit_end_and_archive(
             }
         }
     }
+    remove_huddle_agents(ephemeral_channel_id, state).await;
     if !ephemeral_channel_id.is_empty() {
         if let Ok(uuid) = parse_channel_uuid(ephemeral_channel_id) {
             if let Ok(archive_builder) = events::build_archive(uuid) {
@@ -438,6 +439,38 @@ async fn emit_end_and_archive(
     }
 }
 
+/// Best-effort agent removal before archiving an ended huddle.
+///
+/// Archive should make the ephemeral channel unavailable on its own, but removing
+/// bot-role members first prevents an agent-only huddle from lingering if the
+/// archive publish is delayed or rejected.
+async fn remove_huddle_agents(ephemeral_channel_id: &str, state: &AppState) {
+    if ephemeral_channel_id.is_empty() {
+        return;
+    }
+    let Ok(eph_uuid) = parse_channel_uuid(ephemeral_channel_id) else {
+        return;
+    };
+
+    let agent_pubkeys = match fetch_channel_members(ephemeral_channel_id, Some("bot"), state).await
+    {
+        Ok(pubkeys) => pubkeys,
+        Err(e) => {
+            eprintln!("buzz-desktop: fetch huddle agents for cleanup failed: {e}");
+            return;
+        }
+    };
+
+    for pubkey in agent_pubkeys {
+        let Ok(remove_builder) = events::build_remove_member(eph_uuid, &pubkey) else {
+            continue;
+        };
+        if let Err(e) = submit_event(remove_builder, state).await {
+            eprintln!("buzz-desktop: remove huddle agent {pubkey} failed: {e}");
+        }
+    }
+}
+
 /// Leave the current huddle.
 ///
 /// Steps:

desktop/src-tauri/src/huddle/state.rs

@@ -13,17 +13,18 @@ use super::{stt, tts};
 
 /// Voice input mode: push-to-talk (PTT) or voice-activity detection (VAD).
 ///
-/// PTT (default): mic is gated by a global shortcut (Ctrl+Space). Pressing the
-/// key sets `ptt_active` and immediately cancels any playing TTS. Releasing
-/// the key (after a 200 ms delay) stops mic capture and flushes the utterance.
+/// PTT: mic is gated by a global shortcut (Ctrl+Space). Pressing the key sets
+/// `ptt_active` and immediately cancels any playing TTS. Releasing the key
+/// (after a 200 ms delay) stops mic capture and flushes the utterance.
 ///
-/// VAD: the earshot VAD runs continuously and speech is accumulated whenever
-/// the probability exceeds the threshold. Barge-in is enabled in this mode.
+/// VAD (default): the earshot VAD runs continuously and speech is accumulated
+/// whenever the probability exceeds the threshold. Barge-in is enabled in this
+/// mode.
 #[derive(Debug, Clone, Default, Serialize, Deserialize, PartialEq)]
 #[serde(rename_all = "snake_case")]
 pub enum VoiceInputMode {
-    #[default]
     PushToTalk,
+    #[default]
     VoiceActivity,
 }