Initial FlareSolverr Cloudron package

- Add CloudronManifest.json with app metadata
- Create Dockerfile with multi-stage build
- Install Google Chrome (Chrome for Testing) since Ubuntu Noble doesn't have chromium package
- Install required Chrome dependencies (libatk, libgtk, etc.)
- Add start.sh script with Xvfb setup for headless Chrome
- Copy entire Chrome installation directory for proper resource access
- Add .gitignore and update README with installation instructions

start.sh

@@ -0,0 +1,30 @@
+#!/bin/sh
+
+set -eu
+
+# Create necessary directories for Chromium crash reports
+# Cloudron mounts /app/data as a volume - try to create dirs, but don't fail if we can't
+mkdir -p "/app/data/chromium/Crash Reports/pending" 2>/dev/null || true
+
+# Set environment variables for Chromium
+export DISPLAY=:99
+# Ensure /usr/bin is in PATH so chromium is found before snap wrappers
+export PATH="/usr/bin:/usr/local/bin:$PATH"
+
+# Clean up any stale Xvfb lock files
+rm -f /tmp/.X99-lock
+
+# Start Xvfb for headless Chrome
+Xvfb :99 -screen 0 1600x1200x24 -ac +extension GLX +render -noreset &
+
+# Wait for Xvfb to be ready
+sleep 2
+
+echo "Starting FlareSolverr..."
+
+# Change to FlareSolverr directory and start
+cd /app/code/flaresolverr
+
+# Run FlareSolverr (same as official Dockerfile: python -u flaresolverr.py)
+exec python3 -u flaresolverr.py
+