refactor: move broadcast.Message to shared.Message

- create a new shared state file to manage message state
- replace broadcast.Message with shared.Message in pomodoro logic
- update websocket client handling to use shared.Clients
- remove unnecessary broadcast imports from various files
- ensure consistent message handling across the application

🤖

internal/websocket/client_commands.go

@@ -2,7 +2,6 @@ package websocket
 
 import (
 	"encoding/json"
-	"git.smsvc.net/pomodoro/GoTomato/internal/broadcast"
 	"git.smsvc.net/pomodoro/GoTomato/internal/pomodoro"
 	"git.smsvc.net/pomodoro/GoTomato/pkg/models"
 	"github.com/gorilla/websocket"
@@ -25,7 +24,7 @@ func handleClientCommands(ws *websocket.Conn) {
 		_, message, err := ws.ReadMessage()
 		if err != nil {
 			log.Printf("Client disconnected: %v", err)
-			delete(broadcast.Clients, ws)
+			delete(Clients, ws)
 			break
 		}