Add !votes command, fix vote tally timing, and improve Kosmi stability

- Add !votes command (IRC + Kosmi) showing per-session and all-time vote
  breakdowns for the current game via new Jackbox API endpoints
  (GET sessions/{id}/games, sessions/{id}/votes, games/{id})
- Fix vote tally broadcasting: remove debounce timer, announce tallies
  only at game transitions or session end instead of after every vote
- Add !kreconnect IRC command to manually trigger Kosmi reconnection
- Add WebSocket ping/pong keepalive and write mutex to Kosmi client
  for connection stability
- Add watchConnection() auto-reconnect on unexpected Kosmi disconnects
- Remove old 2025-10-31 chat summaries; add votes command design doc

Made-with: Cursor

bridge/irc/handlers.go

@@ -269,6 +269,32 @@ func (b *Birc) handlePrivMsg(client *girc.Client, event girc.Event) {
 		}
 	}
 
+	// Handle !kreconnect command: trigger Kosmi bridge reconnection
+	if strings.TrimSpace(rmsg.Text) == "!kreconnect" {
+		b.Log.Infof("!kreconnect command from %s on %s", event.Source.Name, rmsg.Channel)
+		b.Remote <- config.Message{
+			Username: "system",
+			Text:     "kreconnect",
+			Channel:  rmsg.Channel,
+			Account:  b.Account,
+			Event:    config.EventReconnectKosmi,
+		}
+		return
+	}
+
+	// Handle !votes command: query current game vote tally
+	if strings.TrimSpace(rmsg.Text) == "!votes" {
+		b.Log.Infof("!votes command from %s on %s", event.Source.Name, rmsg.Channel)
+		b.Remote <- config.Message{
+			Username: "system",
+			Text:     "votes",
+			Channel:  rmsg.Channel,
+			Account:  b.Account,
+			Event:    config.EventVotesQuery,
+		}
+		return
+	}
+
 	b.Log.Debugf("<= Sending message from %s on %s to gateway", event.Params[0], b.Account)
 	b.Remote <- rmsg
 }