enhance: Optimize the result format of GetQueryNodeDistribution

[weiliu1031]

Use string array for SealedSegmentIDs to prevent precision loss in JSON parsers. Large integers (int64) may be incorrectly rounded when parsed as double.

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: weiliu1031
To complete the pull request process, please assign czs007 after the PR has been reviewed.
You can assign the PR to them by writing /assign @czs007 in a comment when ready.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• internal/proxy/OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.39%. Comparing base (74890da) to head (673668a).
Report is 7 commits behind head on master.

❌ Your project check has failed because the head coverage (69.39%) is below the target coverage (77.00%). You can increase the head coverage or adjust the target coverage.

❗ There is a different number of reports uploaded between BASE (74890da) and HEAD (673668a). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (74890da)	HEAD (673668a)
	2	1

Additional details and impacted files

@@             Coverage Diff             @@
##           master   #39664       +/-   ##
===========================================
- Coverage   80.07%   69.39%   -10.69%     
===========================================
  Files        1465      302     -1163     
  Lines      203449    27070   -176379     
===========================================
- Hits       162918    18785   -144133     
+ Misses      34709     8285    -26424     
+ Partials     5822        0     -5822     

Components	Coverage Δ
Client	∅ <ø> (∅)
Core	69.39% <ø> (ø)
Go	∅ <ø> (∅)

see 1163 files with indirect coverage changes

[mergify]

@weiliu1031 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[mergify]

@weiliu1031 go-sdk check failed, comment rerun go-sdk can trigger the job again.

[weiliu1031]

rerun go-sdk

[weiliu1031]

rerun ut