Add REST API server, Docker support, and CI pipeline

- Add FastAPI-based REST API server (api_server.py)
- Add Dockerfile and docker-compose.yaml for containerized deployment
- Add Gitea Actions CI workflow for building and pushing images
- Refactor CLI to support dual-server SSH (bouncer + crowdsec)
- Update dependencies with FastAPI and uvicorn
- Update CLAUDE.md and README.md with full documentation

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Dockerfile

@@ -0,0 +1,53 @@
+# syntax=docker/dockerfile:1
+FROM python:3.13-slim
+
+# Install SSH client
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    openssh-client \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install uv
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /usr/local/bin/uv
+
+# Set working directory
+WORKDIR /app
+
+# Copy dependency files first for better caching
+COPY pyproject.toml uv.lock ./
+
+# Install dependencies
+RUN uv sync --frozen --no-dev
+
+# Copy application code
+COPY cf_bouncer.py api_server.py cfb ./
+
+# Create directories for backups and logs
+RUN mkdir -p /root/cf-bouncer-manager/backups
+
+# SSH key mount point
+VOLUME ["/root/.ssh"]
+
+# Environment variables for SSH connection (2 servers)
+# Bouncer server (crowdsec-cloudflare-worker-bouncer)
+ENV CFB_BOUNCER_HOST=""
+ENV CFB_BOUNCER_PORT="22"
+ENV CFB_BOUNCER_USER="root"
+ENV CFB_BOUNCER_KEY=""
+
+# CrowdSec server
+ENV CFB_CROWDSEC_HOST=""
+ENV CFB_CROWDSEC_PORT="22"
+ENV CFB_CROWDSEC_USER="root"
+ENV CFB_CROWDSEC_KEY=""
+
+# API server settings
+ENV CFB_API_HOST="0.0.0.0"
+ENV CFB_API_PORT="8000"
+
+# Expose API port
+EXPOSE 8000
+
+# Default: CLI mode
+# For API server mode, use: --entrypoint uvicorn ... api_server:app
+ENTRYPOINT ["uv", "run", "python", "cf_bouncer.py"]
+CMD ["--help"]