fix: Add thread-safe event emission and fix background thread errors

premium/__init__.py

@@ -104,6 +104,9 @@ class EUUtilityApp:
         if not self._initialized:
             self.initialize()
         
+        # Start event bus first (captures main event loop)
+        self.event_bus.start()
+        
         # Discover and load plugins
         self.plugin_manager.discover_all()
         self.plugin_manager.load_all(auto_activate=True)
@@ -119,10 +122,12 @@ class EUUtilityApp:
     
     def shutdown(self):
         """Shutdown the application gracefully."""
-        if self.plugin_manager:
-            self.plugin_manager.shutdown()
         if self.game_client:
             self.game_client.stop()
+        if self.plugin_manager:
+            self.plugin_manager.shutdown()
+        if self.event_bus:
+            self.event_bus.stop()
     
     def _root_reducer(self, state, action):
         """Root state reducer."""

premium/core/event_bus.py

@@ -37,6 +37,8 @@ from abc import ABC, abstractmethod
 from collections import defaultdict, deque
 from dataclasses import dataclass, field
 from enum import Enum, auto
+from queue import Queue
+from threading import Lock
 from typing import (
     Any, Callable, Coroutine, Dict, List, Optional, Set, Type, TypeVar,
     Union, Generic, Protocol, runtime_checkable
@@ -238,6 +240,11 @@ class EventBus:
         self._event_count = 0
         self._dropped_count = 0
         
+        # Thread-safe queue for cross-thread event emission
+        self._thread_queue: Queue = Queue()
+        self._thread_lock = Lock()
+        self._main_loop: Optional[asyncio.AbstractEventLoop] = None
+    
     # ========== Subscription Methods ==========
     
     def on(
@@ -321,6 +328,24 @@ class EventBus:
         
         return sub_id
     
+    def start(self) -> None:
+        """Start the event bus and capture the main event loop.
+        
+        This should be called from the main thread's async context.
+        """
+        try:
+            self._main_loop = asyncio.get_running_loop()
+            self._running = True
+            self._logger.info("Event bus started")
+        except RuntimeError:
+            self._logger.warning("Event bus started without event loop")
+    
+    def stop(self) -> None:
+        """Stop the event bus."""
+        self._running = False
+        self._main_loop = None
+        self._logger.info("Event bus stopped")
+    
     def unsubscribe(self, subscription_id: str) -> bool:
         """Unsubscribe from events.
         
@@ -413,17 +438,37 @@ class EventBus:
         self._queue.append(event)
         self._event_count += 1
         
-        # Process immediately in async context (thread-safe)
+        # Try to process in async context
         try:
             loop = asyncio.get_running_loop()
-            if loop.is_running():
-                asyncio.create_task(self._process_event(event))
+            # We're in an async context - safe to create task
+            asyncio.create_task(self._process_event(event))
         except RuntimeError:
-            # No event loop running in this thread - queue for later processing
-            pass
+            # No event loop in this thread - queue for main thread
+            with self._thread_lock:
+                self._thread_queue.put(event)
+                # Try to notify main loop if available
+                if self._main_loop and self._main_loop.is_running():
+                    try:
+                        self._main_loop.call_soon_threadsafe(
+                            lambda: asyncio.create_task(self._process_thread_queue())
+                        )
+                    except:
+                        pass
         
         return event
     
+    async def _process_thread_queue(self) -> None:
+        """Process events queued from other threads."""
+        while not self._thread_queue.empty():
+            try:
+                with self._thread_lock:
+                    if not self._thread_queue.empty():
+                        event = self._thread_queue.get_nowait()
+                        await self._process_event(event)
+            except:
+                break
+    
     async def emit_async(
         self,
         event_type: str,

premium/eu_integration/game_client.py

@@ -188,10 +188,14 @@ class GameClient:
             except Exception as e:
                 self._logger.error(f"Error in callback: {e}")
         
-        # Emit to event bus
+        # Emit to event bus (thread-safe)
         if self.event_bus:
             try:
                 self.event_bus.emit(f"game.{event_type}", data, source="game_client")
+            except RuntimeError as e:
+                # No event loop in this thread - event is queued for main thread
+                # This is expected when emitting from background threads
+                pass
             except Exception as e:
                 self._logger.error(f"Error emitting to event bus: {e}")