refactor: remove 'incubating' branding, update docs & packaging

[contrueCT]

Purpose of the PR

• close #xxx

Main Changes

• update repo URLs, issue links, mailing list metadata, and docs references

• remove the root DISCLAIMER

• update NOTICE and release-docs headers from Apache HugeGraph(incubating) to Apache HugeGraph

• rename distribution/package final.name outputs to non-incubating names

• update dist/release scripts, Dockerfiles, CI/workflow paths, and README examples to use new package names

• switch hugegraph-client-go module/import paths to github.com/apache/hugegraph-toolchain/hugegraph-client-go

• intentionally kept third-party dependency/license references such as htrace-core4-*-incubating, since those are upstream artifact names rather than HugeGraph branding

Verifying these changes

• Trivial rework / code cleanup without any test coverage. (No Need)
• Already covered by existing tests, such as (please modify tests here).
• Need tests and can be verified as follows:
  • xxx

Does this PR potentially affect the following parts?

• Nope
• Dependencies (add/update license info)
• Modify configurations
• The public API
• Other affects (typed here)

Documentation Status

• Doc - TODO
• Doc - Done
• Doc - No Need

[Copilot]

Pull request overview

This PR removes “incubating” branding across the HugeGraph Toolchain repository by updating URLs, distribution/package naming, release artifacts, and related documentation so outputs align with post-incubation Apache naming.

Changes:

• Update repository links, issue templates, badges, and documentation references from incubator-*/(incubating) to non-incubating locations and names.
• Rename Maven final.name distribution artifacts to drop -incubating- and update packaging/release scripts and Dockerfiles accordingly.
• Switch hugegraph-client-go module path/imports from github.com/apache/incubator-hugegraph-toolchain/... to github.com/apache/hugegraph-toolchain/....

Reviewed changes

Copilot reviewed 47 out of 47 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
pom.xml	Updates repo URL, mailing list address, artifact final name, and excludes for renamed hubble package paths
hugegraph-tools/pom.xml	Drops -incubating- from tools artifact naming and updates module URL
hugegraph-tools/assembly/travis/install-hugegraph-from-source.sh	Removes now-stale incubator TODO comments
hugegraph-spark-connector/pom.xml	Drops -incubating- from spark connector artifact naming
hugegraph-spark-connector/assembly/travis/install-hugegraph-from-tar.sh	Updates Apache download URL and extracted directory names to non-incubating HugeGraph tarball
hugegraph-spark-connector/assembly/travis/install-hugegraph-from-source.sh	Removes now-stale incubator TODO comments
hugegraph-loader/pom.xml	Drops -incubating- from loader artifact naming
hugegraph-loader/assembly/travis/install-hugegraph-from-tar.sh	Removes now-stale incubator TODO comments
hugegraph-loader/assembly/travis/install-hugegraph-from-source.sh	Removes now-stale incubator TODO comments
hugegraph-loader/README.md	Updates download URLs and extracted directory names to non-incubating toolchain artifacts
hugegraph-loader/Dockerfile	Updates COPY path glob to non-incubating loader directory
hugegraph-hubble/package.json	Updates repository URL to non-incubator GitHub repo
hugegraph-hubble/hubble-dist/pom.xml	Drops -incubating- from hubble distribution final name
hugegraph-hubble/hubble-dist/assembly/travis/download-hugegraph.sh	Removes now-stale incubator TODO comment
hugegraph-hubble/README.md	Updates badges, download commands, and build/run paths to non-incubating names
hugegraph-hubble/Dockerfile	Updates COPY path glob to non-incubating hubble directory
hugegraph-dist/scripts/apache-release.sh	Renames source/binary release artifacts and updates SVN dev path to non-incubator location
hugegraph-dist/release-docs/NOTICE	Updates header branding and copyright year range
hugegraph-dist/release-docs/LICENSE	Updates “Incubating” wording in subcomponents section
hugegraph-dist/pom.xml	Drops -incubating- from dist artifact name and removes DISCLAIMER from packaged contents
hugegraph-client/src/main/java/org/apache/hugegraph/util/CommonUtil.java	Updates HugeGraph doc repository URL prefix
hugegraph-client/assembly/travis/install-hugegraph-from-source.sh	Removes now-stale incubator TODO comments
hugegraph-client-go/hugegraph.go	Updates Go client imports to new module path
hugegraph-client-go/hgtransport/hgtransport.go	Updates internal version import to new module path
hugegraph-client-go/go.mod	Changes module path to github.com/apache/hugegraph-toolchain/hugegraph-client-go
hugegraph-client-go/api/v1/vertexlabel/vertexlabel_test.go	Updates test imports to new module path
hugegraph-client-go/api/v1/vertexlabel/vertexlabel.go	Updates imports to new module path
hugegraph-client-go/api/v1/vertex/vertex.go	Updates imports to new module path
hugegraph-client-go/api/v1/version_test.go	Updates test import to new module path
hugegraph-client-go/api/v1/version.go	Updates imports to new module path
hugegraph-client-go/api/v1/schema_test.go	Updates test import to new module path
hugegraph-client-go/api/v1/schema.go	Updates imports to new module path
hugegraph-client-go/api/v1/propertykey/propertykey_test.go	Updates test imports to new module path
hugegraph-client-go/api/v1/propertykey/propertykey.go	Updates imports to new module path
hugegraph-client-go/api/v1/gremlin/gemlin_test.go	Updates test import to new module path
hugegraph-client-go/api/v1/gremlin/gemlin.go	Updates imports to new module path
hugegraph-client-go/api/v1/edgelabel/edgelabel_test.go	Updates test imports to new module path
hugegraph-client-go/api/v1/edgelabel/edgelabel.go	Updates imports to new module path
hugegraph-client-go/api/v1/api.go	Updates imports to new module path
hugegraph-client-go/api/api.go	Updates imports to new module path
hugegraph-client-go/README.md	Updates go get and import examples to new module path
hugegraph-client-go/README.en.md	Updates import examples to new module path
README.md	Updates ecosystem links and hubble quick-start path to non-incubating names
NOTICE	Updates header branding and copyright year range
DISCLAIMER	Removes incubator DISCLAIMER file
.github/workflows/hubble-ci.yml	Updates runtime directory glob to non-incubating hubble name
.github/ISSUE_TEMPLATE/feature_request.yml	Updates issue search links to new repo location

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[imbajin]

Record the loader-ci error & rerun

[contrueCT]

Record the `loader-ci` error & rerun

I checked the failing test case FileLoadTest.testSourceOrTargetPrimaryValueNull(). From the current code path, this looks more like a flaky test issue than a regression caused by this PR.

This PR only updates branding-related docs/metadata/package names/paths and does not change hugegraph-loader runtime logic.

For this test specifically, loader.load() is expected to throw, but loader.shutdown() is placed after it in the same lambda. So once load() fails, shutdown() is not executed, while vertex inserts are still submitted asynchronously. The test then immediately queries the graph and assumes all 7 vertices have already been flushed, which is not guaranteed. That would explain the observed expected:<7> but was:<5>.

I’ll take another look at whether we should stabilize this test separately, but at the moment this failure does not appear to be directly introduced by the incubating-branding cleanup in this PR.

[contrueCT]

The fix only makes sure shutdown() is always executed via finally, so the assertion is performed after the loader finishes cleanup. It keeps the same expected behavior (7 vertices, 0 edges`) and only removes the timing flakiness.