Get logs endpoint & system_stats additions (#4690)

* Add route for getting output logs

* Include ComfyUI version

* Move to own function

* Changed to memory logger

* Unify logger setup logic

* Fix get version git fallback

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Co-authored-by: pythongosssss <125205205+pythongosssss@users.noreply.github.com>

api_server/routes/internal/internal_routes.py

@@ -2,6 +2,7 @@ from aiohttp import web
 from typing import Optional
 from folder_paths import models_dir, user_directory, output_directory
 from api_server.services.file_service import FileService
+import app.logger
 
 class InternalRoutes:
     '''
@@ -31,6 +32,9 @@ class InternalRoutes:
             except Exception as e:
                 return web.json_response({"error": str(e)}, status=500)
 
+        @self.routes.get('/logs')
+        async def get_logs(request):
+            return web.json_response(app.logger.get_logs())
 
     def get_app(self):
         if self._app is None: