feat: Dockerfile for Kaito RAG Service (#680)

**Reason for Change**:
Dockerfile for Kaito RAG Service

---------

Signed-off-by: Ishaan Sehgal <ishaanforthewin@gmail.com>

docker/ragengine/service/Dockerfile

@@ -0,0 +1,21 @@
+FROM python:3.12-slim
+
+WORKDIR /app
+
+# Copy all files from ragengine/services into the app/services folder
+COPY services/ services/
+
+# Set the PYTHONPATH environment variable
+ENV PYTHONPATH=/app
+
+# Install dependencies from requirements.txt
+RUN pip install --no-cache-dir -r services/requirements.txt
+
+# Set the final working directory
+WORKDIR /app/services
+
+# Run Using Following
+# docker build -f kaito-repo/pkg/ragengine/docker/Dockerfile.service -t kaito-rag-service:0.0.1 kaito-repo/pkg/ragengine
+# docker tag kaito-rag-service:0.0.1 <ACR_PATH>/kaito-rag-service:0.0.1
+# docker push <ACR_PATH>/kaito-rag-service:0.0.1
+