dockerfiles added

apps/simulator/Dockerfile

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+# Simulator Service Dockerfile
+# FastAPI Web UI + MQTT Device Simulator
+
+FROM python:3.14-alpine
+
+# Prevent Python from writing .pyc files and enable unbuffered output
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    MQTT_BROKER=172.16.2.16 \
+    MQTT_PORT=1883 \
+    SIM_PORT=8010
+
+# Create non-root user
+RUN addgroup -g 10001 -S app && \
+    adduser -u 10001 -S app -G app
+
+# Set working directory
+WORKDIR /app
+
+# Install system dependencies
+RUN apk add --no-cache \
+    curl \
+    gcc \
+    musl-dev \
+    linux-headers
+
+# Install Python dependencies
+COPY apps/simulator/requirements.txt /app/requirements.txt
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy application code
+COPY apps/__init__.py /app/apps/__init__.py
+COPY apps/simulator/ /app/apps/simulator/
+
+# Change ownership to app user
+RUN chown -R app:app /app
+
+# Switch to non-root user
+USER app
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+    CMD curl -f http://localhost:8010/health || exit 1
+
+# Expose port
+EXPOSE 8010
+
+# Run the simulator
+CMD ["python", "-m", "uvicorn", "apps.simulator.main:app", "--host", "0.0.0.0", "--port", "8010"]

apps/simulator/requirements.txt

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+fastapi==0.104.1
+uvicorn[standard]==0.24.0
+aiomqtt==2.0.1
+jinja2==3.1.2