feat: Add Docker support and debug logging for plugin initialization.

Dockerfile

@@ -0,0 +1,44 @@
+# FlaskFarm Docker Image
+# Ubuntu 22.04 + Python 3.10 for sc module support on ARM64/x86_64 Linux
+
+FROM python:3.10-slim-bullseye
+
+LABEL maintainer="yommi"
+LABEL description="FlaskFarm with sc module support"
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ffmpeg \
+    git \
+    curl \
+    gcc \
+    python3-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+# Set working directory
+WORKDIR /app
+
+# Copy requirements first for layer caching
+COPY ff_3_10_requirements.txt .
+
+# Install Python dependencies (skip FlaskFarm package - running from source)
+RUN grep -v "FlaskFarm" ff_3_10_requirements.txt > requirements_docker.txt \
+    && pip install --no-cache-dir -r requirements_docker.txt \
+    && pip install --no-cache-dir curl_cffi yt-dlp loguru
+
+# Copy FlaskFarm application
+COPY . .
+
+# Expose port
+EXPOSE 9099
+
+# Environment variables
+ENV PYTHONUNBUFFERED=1
+ENV TZ=Asia/Seoul
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+    CMD curl -f http://localhost:9099/ || exit 1
+
+# Run FlaskFarm
+CMD ["python", "main.py"]