Fix Dockerfile paths for backend service to ensure correct context and file copying

Author: Vemarthula-Microsoft

azure_custom.yaml

@@ -17,14 +17,14 @@ services:
     language: python
     docker:
       path: ../../docker/Backend.Dockerfile
-      context: ../..
+      context: ../../docker
   frontend:
     project: ./src/frontend
     host: containerapp
     language: js
     docker:
       path: ../../docker/Frontend.Dockerfile
-      context: ../..
+      context: ../../docker
 
 infra:
   provider: bicep

docker/Backend.Dockerfile

@@ -7,13 +7,13 @@ apt-get install -y libicu-dev
 WORKDIR /app
 
 # Copy only requirements first to leverage Docker cache
-COPY src/backend/requirements.txt .
+COPY ../src/backend/requirements.txt .
 
 # Install dependencies
 RUN pip install --no-cache-dir -r requirements.txt
 
 # Copy backend code
-COPY src/backend/ .
+COPY ../src/backend/ .
 
 EXPOSE 8000