fix: correct paths in Dockerfiles for requirements and package files

backend/Dockerfile

@@ -2,9 +2,9 @@ FROM python:3.12-slim
 
 WORKDIR /app
 
-COPY backend/requirements.txt /app/
+COPY requirements.txt /app/
 RUN pip install --no-cache-dir -r requirements.txt
 
-COPY backend /app
+COPY . /app
 
 CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]

frontend/Dockerfile

@@ -1,7 +1,7 @@
 # Etap 1: Build Vue
 FROM node:20 AS build
 WORKDIR /app
-COPY ./package*.json ./
+COPY package*.json ./
 RUN npm install
 COPY . ./
 RUN npm run build