🔀 refactor(langflow): move routers to a single file and add health check endpoint

The routers for the langflow API have been moved to a single file for better organization and maintainability. The routers have been imported and included in the main.py file using the new file. A new health check endpoint has been added to the API to check the status of the application.

src/backend/langflow/__init__.py

@@ -1,4 +1,4 @@
 from langflow.cache import cache_manager
-from langflow.interface.loading import load_flow_from_json
+from langflow.processing.process import load_flow_from_json
 
 __all__ = ["load_flow_from_json", "cache_manager"]

src/backend/langflow/main.py

@@ -1,9 +1,7 @@
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 
-from langflow.api.chat import router as chat_router
-from langflow.api.endpoints import router as endpoints_router
-from langflow.api.validate import router as validate_router
+from langflow.api import router
 
 
 def create_app():
@@ -14,6 +12,10 @@ def create_app():
         "*",
     ]
 
+    @app.get("/health")
+    def get_health():
+        return {"status": "OK"}
+
     app.add_middleware(
         CORSMiddleware,
         allow_origins=origins,
@@ -22,9 +24,7 @@ def create_app():
         allow_headers=["*"],
     )
 
-    app.include_router(endpoints_router)
-    app.include_router(validate_router)
-    app.include_router(chat_router)
+    app.include_router(router)
     return app