v1.3.0 - Kafka, Redis & MongoDB backends

What's New

New Storage Backends

• Kafka — produces webhook changes as JSON messages to per-evidence topics via php-rdkafka
• Redis Streams — stores changes in Redis Streams keyed by evidence type via php-redis
• MongoDB — stores changes in per-evidence collections via php-mongodb

Interface Changes

• Expanded saver interface with saveWebhookData(), getLastProcessedVersion(), saveLastProcessedVersion()

Packaging

• New debian packages: abraflexi-webhook-acceptor-kafka, -redis, -mongodb
• Packages can be installed alongside SQL backends (no conflicts)

Testing & Infrastructure

• Ansible playbooks for provisioning Kafka, Redis, MongoDB on Debian/Ubuntu
• Integration test script (tests/test_all_backends.php) for verifying all backends
• Unit tests for each saver with @requires extension auto-skip

Dependencies

• Upgraded mongodb/mongodb to ^2.0 (compatible with ext-mongodb 2.0)
• PHP 8.4 support