feat: add Review Board Cloudron package (Development)

- Create Dockerfile wrapping official Review Board image
- Add CloudronManifest.json with PostgreSQL addon
- Create start.sh script with PostgreSQL wait and Django migrations
- Include README.md with comprehensive review platform documentation
- Add .env.example for environment configuration
- Add CHANGELOG.md for version tracking
- Add logo.png (Review Board branding)

Review Board is a web-based code and document review tool
that tracks pending code, graphics, documents, and all discussions
around product decisions.

Package includes:
- Official Review Board Docker image wrapper (1.29GB)
- Cloudron PostgreSQL addon for Django database
- Automatic database migrations on startup
- Admin user creation via environment variables
- Comprehensive documentation with integration examples
- Examples for GitHub, GitLab, Mercurial, and Perforce

Features supported:
- Code review with advanced diff viewer (syntax highlighting, interdiffs)
- Document review (PDF and Office files)
- Discussion tracking with threaded comments
- Review requests workflow
- Repository integration (Git, Mercurial, Perforce, Plastic, Azure DevOps)
- Team and project management
- Email notifications
- Search across reviews and discussions
- Power Pack extension support (reports, LDAP sync, GitHub Enterprise)
- User authentication (LDAP, OAuth, traditional)

Environment variables:
- SECRET_KEY: Django secret key
- ALLOWED_HOSTS: Allowed hosts (default: *)
- REVIEWBOARD_SITE_ROOT: Site root URL
- ADMIN_USERNAME/EMAIL/PASSWORD: Admin account creation
- LDAP_*: LDAP/Active Directory configuration

Ports:
- 8080: Main HTTP port (web interface and API)

💘 Generated with Crush

Assisted-by: GLM-4.7 via Crush <crush@charm.land>

Package-Workspace/Development/reviewboard/start.sh

@@ -0,0 +1,59 @@
+#!/bin/bash
+
+set -e
+
+echo "Starting Review Board Cloudron package..."
+
+# Database connection from Cloudron
+DB_NAME=${CLOUDRON_POSTGRESQL_DATABASE:-reviewboard}
+DB_USER=${CLOUDRON_POSTGRESQL_USERNAME:-reviewboard}
+DB_PASSWORD=${CLOUDRON_POSTGRESQL_PASSWORD}
+DB_HOST=${CLOUDRON_POSTGRESQL_HOST:-127.0.0.1}
+DB_PORT=${CLOUDRON_POSTGRESQL_PORT:-5432}
+
+echo "Database host: $DB_HOST"
+echo "Database port: $DB_PORT"
+echo "Database name: $DB_NAME"
+
+# Wait for PostgreSQL to be ready
+echo "Waiting for PostgreSQL to be ready..."
+until PGPASSWORD=$DB_PASSWORD psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -c '\q' 2>/dev/null; do
+  echo "PostgreSQL is unavailable - sleeping"
+  sleep 2
+done
+
+echo "PostgreSQL is ready!"
+
+# Django configuration
+export REVIEWBOARD_SITE_ROOT=${REVIEWBOARD_SITE_ROOT:-https://$CLOUDRON_APP_DOMAIN}
+export DATABASE_TYPE=postgresql
+export DATABASE_NAME=$DB_NAME
+export DATABASE_USER=$DB_USER
+export DATABASE_PASSWORD=$DB_PASSWORD
+export DATABASE_HOST=$DB_HOST
+export DATABASE_PORT=$DB_PORT
+export MEMCACHED_SERVER=
+export SECRET_KEY=${SECRET_KEY:-cloudron-secret-key-change-in-production}
+export ALLOWED_HOSTS=${ALLOWED_HOSTS:-'*'}
+
+# Site directory
+export REVIEWBOARD_SITEDIR=/site
+
+# Run database migrations
+echo "Running Review Board database migrations..."
+./manage.py migrate --noinput
+
+# Collect static files
+echo "Collecting static files..."
+./manage.py collectstatic --noinput
+
+# Create admin user if specified
+if [ -n "$ADMIN_USERNAME" ] && [ -n "$ADMIN_PASSWORD" ] && [ -n "$ADMIN_EMAIL" ]; then
+  echo "Creating admin user..."
+  echo "from django.contrib.auth import get_user_model; from django.core.management import call_command; User = get_user_model(); User.objects.create_superuser('$ADMIN_USERNAME', '$ADMIN_EMAIL', '$ADMIN_PASSWORD') if not User.objects.filter(email='$ADMIN_EMAIL').exists() else None" | \
+    ./manage.py shell 2>/dev/null || echo "Admin user may already exist"
+fi
+
+# Start Review Board
+echo "Starting Review Board..."
+exec ./serve.sh