Migrate Camunda 7 to Operaton 1

[hhund]

The final Camunda 7 Community Edition release is scheduled for 14th October 2025: https://camunda.com/blog/2025/02/camunda-7-enterprise-end-of-life-extension/

DSF 2.x should use Operaton, "a community-driven, free, and open-source BPMN engine", "created as a fork of Camunda 7 CE", as the included business process engine. Java class files from API v1 process plugins need to be modified on load to replace org.camunda class dependencies with org.operaton. A list of name changes was published by Operaton: https://github.com/operaton/migrate-from-camunda-recipe/blob/main/camunda-to-operaton-mapping.md

Before switching to Operaton 1.0.0 we need to include potential DB migrations from Camunda 7.24:
https://camunda.jfrog.io/ui/native/camunda-bpm/org/camunda/bpm/distro/camunda-sql-scripts/

So far the only change published in 7.24.0-alpha2 is a schema version upgrade:

insert into ACT_GE_SCHEMA_LOG values ('1300', CURRENT_TIMESTAMP, '7.24.0');

Operaton 1.0.0-beta-5 is based on Camunda 7.23:
https://github.com/operaton/operaton/releases/tag/v1.0.0-beta-5

Operaton 1.0.0-rc-1 is based on Camunda 7.24 (currently 7.24.0-alpha2):
https://github.com/operaton/operaton/releases/tag/early-access