added http 226 error

app.py

@@ -119,7 +119,7 @@ def get_course_func(query):
 
 
 
-@app.post("/Ai/upload",tags=["AI"])
+@app.post("/ai/upload",tags=["AI"])
 async def upload_file(file: UploadFile = File(...),authorization: str = Header(...)):
      # Extract the token from the Authorization header (Bearer token)
     token = authorization.split("Bearer ")[-1]
@@ -161,7 +161,7 @@ async def upload_file(file: UploadFile = File(...),authorization: str = Header(.
 
 
 
-@app.post("/Ai/ask",tags=["AI"])
+@app.post("/ai/ask",tags=["AI"])
 def ask_ai_about_resume(req:AiAnalysis,authorization: str = Header(...)):
     # Retrieve context from your vector database
     token = authorization.split("Bearer ")[-1]
@@ -195,7 +195,7 @@ def ask_ai_about_resume(req:AiAnalysis,authorization: str = Header(...)):
     
     return {"Ai_Response":response.text}
 
-@app.post("/Ai/recommend",tags=["AI"])
+@app.post("/ai/recommend",tags=["AI"])
 def ask_ai_to_recommnd_courses(request:UserCourse,authorization:str=Header(...)):
     """
 User Profile Information for Career Development
@@ -306,7 +306,7 @@ def signUp(user:UserBody):
         print(result)
         access_token = encode_jwt(user_id=user_id,access_token=accessToken)
         return {"refreshToken":refreshToken,"accessToken":access_token}
-    return JSONResponse(status_code=401,content="Invalid Sign Up details")
+    return JSONResponse(status_code=status.HTTP_226_IM_USED,content="user already Exists")