f154bbd33c
- Add RedisSpan interface in rbcs-api for opaque span handles - Extend TelemetryController with startRedisSpan/endRedisSpan methods - Implement Redis tracing in rbcs-server-otel via OtelController and RedisOtelSpan - Instrument RedisCacheHandler to create spans around GET and SET commands - Add uses directive in rbcs-server-redis module-info for ServiceLoader discovery Redis spans are created as CLIENT spans with attributes: db.system=redis, db.operation=GET|SET, server.address, server.port