WIP: Add cluster/statistics endpoint handling.

[jfrancoa]

This commit adds a new cluster method get_cluster_statistics() which retrieves valuable statistics from the cluster.

[orca-security-eu]

Orca Security Scan Summary

Status	Check	Issues by priority
Passed	Infrastructure as Code	0   0   0   0	View in Orca
Passed	Secrets	0   0   0   0	View in Orca
Passed	Vulnerabilities	0   0   0   0	View in Orca

Copilot reviewed 5 out of 5 changed files in this pull request and generated no suggestions.

Comments skipped due to low confidence (4)

weaviate/cluster/types.py:41

• [nitpick] The variable name id_ is inconsistent. It should be renamed to id.

id_: str

weaviate/cluster/types.py:75

• [nitpick] The variable name open_ is inconsistent. It should be renamed to open.

open_: bool

integration_v3/test_cluster.py:139

• The test checks for 'open' instead of 'open_'. It should be updated to match the naming convention used in the ClusterNodeStats class.

assert isinstance(node["open"], bool)  # API returns 'open', not 'open_'

integration_v3/test_cluster.py:168

• The test checks for 'id' instead of 'id_'. It should be updated to match the naming convention used in the RaftPeer class.

assert isinstance(peer["id"], str)  # API returns 'id', not 'id_'

[jfrancoa]

I have just realized that the classes I changed are for the v3 version of the client, I will need some more time to rework it.

[weaviate-git-bot]

Great to see you again! Thanks for the contribution.

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