*: update kvproto and adapt keyspace fields

[disksing]

What problem does this PR solve?

Issue Number: close #69944

Problem Summary:

The selected kvproto revision changes several keyspace and AutoID protobuf fields to oneofs. TiDB needs compatible kvproto, client-go, and PD client revisions together with source updates for the generated APIs.

What changed and how does it work?

• Update kvproto to 059694ae4472276644613acccefa24cbc89d959f.
• Update client-go and PD client to compatible revisions.
• Keep the existing numeric keyspace-ID behavior by adapting AutoID, external workload, keyspace metadata, mockstore/unistore, executor, BR, and test code to oneof getters and wrappers.
• Regenerate Bazel dependency metadata.

This PR intentionally does not implement API V3 keyspace identity semantics.

Check List

Tests

• Unit test
  • make bazel_prepare
  • make lint
  • ./tools/check/failpoint-go-test.sh pkg/autoid_service -run '^TestAPI$' -count=1
  • ./tools/check/failpoint-go-test.sh pkg/meta/autoid -run '^TestUnsignedAutoid$' -count=1
  • go test -tags=intest ./pkg/extworkload/client -count=1

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

None

[coderabbitai]

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📝 Walkthrough

Walkthrough

This change updates kvproto, TiKV, and PD dependency pins; migrates keyspace protobuf usage to oneof wrappers and getter accessors; adds keyspace identity propagation and validation; and updates production code, mocks, and tests.

Changes

Keyspace protobuf migration

Layer / File(s)	Summary
Dependency pin updates DEPS.bzl, go.mod, pkg/*/BUILD.bazel	Updates dependency versions, integrity metadata, Bazel dependencies, and test shard counts.
Auto-ID keyspace identity flow pkg/autoid_service/..., pkg/meta/autoid/...	Validates keyspace identities and sends identity- or ID-based AutoID and Rebase requests.
External workload identity headers pkg/extworkload/client/..., pkg/extworkload/manager.go	Adds optional keyspace identity headers and tests V3 header fields.
Production protobuf API alignment pkg/executor/..., pkg/store/mockstore/..., pkg/store/mockstore/unistore/...	Uses protobuf getters and oneof metadata. Adds mock keyspace identity methods.
Test fixture migration br/..., pkg/ddl/..., pkg/domain/..., pkg/dxf/..., pkg/executor/..., pkg/session/..., pkg/store/..., pkg/tablecodec/...	Updates keyspace metadata and request fixtures to the APIV3 protobuf representation.
Leak-check test support br/cmd/br/main_test.go	Adds the memory arbitrator goroutine to the leak-check ignore list.

Estimated code review effort: 3 (Moderate) | ~25 minutes

Possibly related PRs

• pingcap/tidb#68863: Updates related keyspace-aware GC safepoint integrations.
• pingcap/tidb#70208: Modifies the same conflicted-key test helper.

Suggested reviewers: amoebaprotozoa, lcwangchao

Poem

A rabbit checks each oneof field,
New keyspace shapes are revealed.
Identity hops through every call,
Getter paths replace fields tall.
Fresh pins make the build stand tall.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 20.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	The changes update APIV3 dependencies and adapt the affected AutoID, keyspace, mockstore, BR, executor, and test code.
Out of Scope Changes check	✅ Passed	The reviewed changes support APIV3 dependency compatibility and related generated API migrations.
Title check	✅ Passed	The title clearly summarizes the dependency update and the required keyspace field adaptations.
Description check	✅ Passed	The description includes the issue, problem context, implementation summary, tests, side effects, documentation status, and release note.

✨ Finishing Touches 💡 2

📝 Generate docstrings 💡

• Create stacked PR
• Commit on current branch

🛠️ Fix failing CI checks 💡

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch apiv3-update-proto

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[codecov]

Codecov Report

❌ Patch coverage is 11.53846% with 23 lines in your changes missing coverage. Please review.
✅ Project coverage is 74.9817%. Comparing base (46e9228) to head (2fd5519).

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #69942        +/-   ##
================================================
- Coverage   76.3264%   74.9817%   -1.3447%     
================================================
  Files          2041       2111        +70     
  Lines        558217     588959     +30742     
================================================
+ Hits         426067     441612     +15545     
- Misses       131250     144923     +13673     
- Partials        900       2424      +1524     

Flag	Coverage Δ
integration	45.6598% <11.5384%> (+5.9911%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
dumpling	59.8974% <ø> (ø)
parser	∅ <ø> (∅)
br	63.5928% <ø> (+0.8838%)	⬆️

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[disksing]

/test pull-br-integration-test

[disksing]

/test pull-br-integration-test

[disksing]

/test pull-integration-e2e-test

[disksing]

/test pull-mysql-client-test

[disksing]

/test pull-br-integration-test

[coderabbitai]

Note

GitHub couldn't provide a complete incremental comparison for this pull request, so CodeRabbit is performing a full review instead. This review may take a little longer.

[disksing]

Scope update: this PR now only updates the dependencies and adapts TiDB to the generated protobuf oneofs while preserving the existing numeric keyspace-ID behavior. API V3 KeyspaceIdentity propagation/validation and the related tests have been removed in 47f07c8. This also makes the earlier non-blocking V3 server-validation test suggestion no longer applicable. @bb7133, please take another look when convenient; I have left the /hold in place.

[disksing]

/retest-required

[YangKeao]

#70343 is blocked by this because that one also needs to update client-go, which already depends on kv proto v3.

[disksing]

/test unit-test

[disksing]

/test unit-test

[disksing]

/test pull-br-integration-test

[bb7133]

LGTM

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: 3pointer, bb7133, GMHDBJD, lcwangchao

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

The pull request process is described here

Details

Needs approval from an approver in each of these files:

• OWNERS [3pointer,GMHDBJD,bb7133,lcwangchao]
• br/OWNERS [3pointer]
• lightning/OWNERS [GMHDBJD]
• pkg/autoid_service/OWNERS [bb7133]
• pkg/ddl/OWNERS [GMHDBJD,bb7133]
• pkg/domain/OWNERS [GMHDBJD,bb7133]
• pkg/dxf/OWNERS [GMHDBJD]
• pkg/executor/importer/OWNERS [GMHDBJD]
• pkg/ingestor/OWNERS [GMHDBJD,bb7133]
• pkg/meta/OWNERS [GMHDBJD,bb7133]
• pkg/tablecodec/OWNERS [GMHDBJD,bb7133]

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

[bb7133]

/unhold