Use full python image

Dockerfile

@@ -1,15 +1,16 @@
-FROM python:3.11-slim
+# Use a more complete base image
+FROM python:3.11
 
 WORKDIR /app
 
-# Install system deps in one layer to avoid cache issues
-RUN apt-get update && apt-get install -y --no-install-recommends espeak-ng libespeak-ng1 && rm -rf /var/lib/apt/lists/*
+# System deps - use a single RUN to avoid cache issues
+RUN apt-get update && apt-get install -y espeak-ng libespeak-ng1 && rm -rf /var/lib/apt/lists/*
 
-# Install Python deps
+# Python deps
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
-# Copy app
+# App
 COPY main.py .
 
 ENV PORT=7860