Initial commit: Maskarr - Tracker proxy for *arr apps

- HTTP proxy server to modify User-Agent and headers for private trackers
  - Web UI with collapsible tracker cards and real-time validation
  - Multi-tracker support with persistent JSON configuration
  - Thread-safe configuration management
  - Full HTTP methods support (GET, POST, PUT, DELETE, PATCH, HEAD, OPTIONS)
  - REST API for tracker management
  - Docker support with multi-architecture builds (amd64, arm64, arm/v7)
  - CI/CD workflows for GitHub Actions and Gitea Actions
  - Automatic publishing to GitHub Container Registry and Gitea Registry

docker-compose.yml

@@ -0,0 +1,39 @@
+version: '3.8'
+
+services:
+  maskarr:
+    # Using GitHub Container Registry (recommended)
+    image: ghcr.io/dasemu/maskarr:latest
+
+    # Alternative: Use Gitea Registry (uncomment to use)
+    # image: git.dariosevilla.es/dasemu/maskarr:latest
+
+    # Or build locally:
+    # build: .
+
+    container_name: maskarr
+    restart: unless-stopped
+    ports:
+      - "8888:8888"
+    volumes:
+      # Persist configuration
+      - ./config:/app/config
+    environment:
+      # Optional: Override default config path
+      - CONFIG_PATH=/app/config/maskarr_config.json
+      # Optional: Set timezone
+      - TZ=Europe/London
+    healthcheck:
+      test: ["CMD", "python", "-c", "import requests; requests.get('http://localhost:8888/', timeout=5)"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 5s
+    # Optional: Run as specific user/group
+    # user: "1000:1000"
+    networks:
+      - maskarr_network
+
+networks:
+  maskarr_network:
+    driver: bridge