simplify base image and packages

Dockerfile

@@ -1,14 +1,12 @@
-FROM continuumio/miniconda3
+FROM python:3.11-slim
 
 WORKDIR /home/app
 
 # Updated to include build-essential and libpq-dev
 RUN apt-get update && apt-get install -y \
-    nano \
-    unzip \
     curl \
-    build-essential \
-    libpq-dev
+    unzip \
+    && rm -rf /var/lib/apt/lists/*
 
 RUN curl -fsSL https://get.deta.dev/cli.sh | sh