Workflow Import/Export/Delete

[devhawk]

fixes #271
fixes #276
supersedes #277

[kraftp]

This is great! Can we also enable the relevant Conductor test (https://github.com/dbos-inc/dbos-conductor/blob/528b6f605434640eda3f7bad7e00c20383aa82b5/tests/test_workflow_management.py#L932) in Java? It tests export/import over the wire at scale.

[devhawk]

This is great! Can we also enable the relevant Conductor test (https://github.com/dbos-inc/dbos-conductor/blob/528b6f605434640eda3f7bad7e00c20383aa82b5/tests/test_workflow_management.py#L932) in Java? It tests export/import over the wire at scale.

does this PR have to merge first?

[kraftp]

This is great! Can we also enable the relevant Conductor test (https://github.com/dbos-inc/dbos-conductor/blob/528b6f605434640eda3f7bad7e00c20383aa82b5/tests/test_workflow_management.py#L932) in Java? It tests export/import over the wire at scale.

does this PR have to merge first?

We should be able to run that test with a preview version from this PR, then once it passes we can merge this. But I've found that large-amount-of-data Conductor tests effective at catching bugs in this.

[devhawk]

This is great! Can we also enable the relevant Conductor test (https://github.com/dbos-inc/dbos-conductor/blob/528b6f605434640eda3f7bad7e00c20383aa82b5/tests/test_workflow_management.py#L932) in Java? It tests export/import over the wire at scale.

does this PR have to merge first?

We should be able to run that test with a preview version from this PR, then once it passes we can merge this. But I've found that large-amount-of-data Conductor tests effective at catching bugs in this.

confirmed relevant conductor test [passes[(https://github.com/dbos-inc/dbos-conductor/actions/runs/21880286179)