[Feature][seatunnel core][seatunnel-flink-start] Filnk engine supports task restore from checkpoint upon startup
- Dominant language
- Java
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Description
### Search before asking
- [x] I had searched in the [feature](https://github.com/apache/seatunnel/issues?q=is%3Aissue+label%3A%22Feature%22) and found no similar feature requirement.
### Description
For the Zeta engine, restore can be done from jobId, and for the Flink engine, we should also support restore from checkpoint . If support is needed, I will submit the code
### Usage Scenario
_No response_
### Related issues
_No response_
### Are you willing to submit a PR?
- [x] Yes I am willing to submit a PR!
### Code of Conduct
- [x] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)
Contributor guide
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Research direction
Start by locating the seatunnel-flink-start module and reading how startup currently handles jobs and checkpoints. Confirm the expected restore behavior for a Flink task on startup, then verify that a task can resume from its checkpoint without breaking the existing Zeta-engine behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- data-engineering, distributed-systems
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100