[I] Move dataset file path resolution out of CU Master/Worker [texera]

["bobbai00 (via GitHub)" <gi...@apache.org>]

bobbai00 opened a new issue, #5013:
URL: https://github.com/apache/texera/issues/5013

   ### Task Summary
   
   Sub-issue of #5011.
   
   Move the `FileResolver.datasetResolveFunc` direct DB call
   (`common/workflow-core/.../FileResolver.scala`) behind an HTTP service
   that owns the credentials. The executor forwards the originating user's
   JWT.
   
   `datasetResolveFunc` joins `USER × DATASET × DATASET_VERSION` to translate
   `/owner/dataset/version/file` into a `dataset:///<repo>/<hash>/<file>`
   URI. It is the only `SqlServer` call site reachable from CU Master /
   Worker that is not about execution metadata. It is invoked from
   `LogicalPlan.resolveScanSourceOpFileName`, which runs during workflow
   compile on every execution.
   
   The natural owner for this lookup is `file-service` (it already owns
   the dataset model). Done when no code reachable from CU Master / Worker
   calls `SqlServer` for dataset path resolution, the new endpoint is
   `@Auth`-checked, and the existing `FileResolverSpec` plus an end-to-end
   workflow run that scans a dataset file still pass.
   
   ### Task Type
   
   - [x] Refactor / Cleanup
   - [ ] DevOps / Deployment / CI
   - [ ] Testing / QA
   - [ ] Documentation
   - [ ] Performance
   - [ ] Other
   


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