[history server] move storage interface

[my-vegetable-has-exploded]

Why are these changes needed?

Move historyserver/pkg/collector/logcollector/storage to historyserver/pkg/storage and updata imports.

Related issue number

Closes #4278

Checks

• I've made sure the tests are passing.
• Testing Strategy
  • Unit tests
  • Manual tests
  • This PR is not tested :(

[Future-Outlier]

cc @lorriexingfang to take a look!

[Future-Outlier]

cc @JiangJiaWei1103 @machichima need you to help review.

[machichima]

Could you also help updating the README?

• There's no backend/ now, we use pkg/
• Please add a bullet point for pkg/storage

Thanks!

kuberay/historyserver/README.md

Lines 118 to 124 in ef4abc4

	### Code Structure
	- `cmd/`: Main applications (collector and historyserver)
	- `backend/`: Core logic for storage backends and collection
	- `backend/collector/`: Collector-specific code
	- `backend/historyserver/`: History server implementation
	- `dashboard/`: Web UI files

[JiangJiaWei1103]

Would you mind merging the master branch so the collector e2e tests can be triggered? Thanks.

Local e2e tests pass as below:

[my-vegetable-has-exploded]

Could you also help updating the README?

* There's no `backend/` now, we use `pkg/`

* Please add a bullet point for `pkg/storage`

Thanks!

kuberay/historyserver/README.md

Lines 118 to 124 in ef4abc4

	### Code Structure
	- `cmd/`: Main applications (collector and historyserver)
	- `backend/`: Core logic for storage backends and collection
	- `backend/collector/`: Collector-specific code
	- `backend/historyserver/`: History server implementation
	- `dashboard/`: Web UI files

done.

[JiangJiaWei1103]

LGTM, thank you!

[JiangJiaWei1103]

Great! The modification is within the scope of this PR.

Just a quick reminder: this documentation doesn’t reflect the current history server code structure (e.g., missing eventserver/). Instead of adding more components on top of outdated docs, I suggest opening a separate issue to update the documentation. Since the history server is still under active development, it may be better to postpone the doc update until we have a first stable version.

Issue link: #4338

cc @Future-Outlier

[Future-Outlier]

cursor review

[Future-Outlier]

cursor review

[cursor]

✅ Bugbot reviewed your changes and found no bugs!

[machichima]

LGTM!

[Future-Outlier]

thank you!

[my-vegetable-has-exploded]

Thanks all.