[feat](fe) Show inverted index storage format for partitions

[hoshinojyunn]

What problem does this PR solve?

Issue Number: None

Related PR: None

Problem Summary:

Original inverted_index_storage_format table property was not visible in SHOW PARTITIONS, this will increase testing costs for subsequent modifications to the partitioned inverted index rolling upgrade. For now, we'll focus on adding observability functionality to the partitioned inverted index format..SHOW TABLET STORAGE FORMAT can also serve as an observable interface.

This PR adds InvertedIndexStorageFormat to SHOW PARTITIONS and supports filtering by that column. It also extends SHOW TABLET STORAGE FORMAT to report per-tablet inverted-index formats in VERBOSE mode and aggregate InvertedIndexV2Count and InvertedIndexV3Count values. The local and cloud both return the required schema format information now.

Example:

CREATE TABLE example_inverted_index_format (
    k INT,
    v VARCHAR(20),
    INDEX idx_v (v) USING INVERTED
)
DUPLICATE KEY(k)
PARTITION BY RANGE(k) (
    PARTITION p1 VALUES [("0"), ("10"))
)
DISTRIBUTED BY HASH(k) BUCKETS 1
PROPERTIES (
    "replication_num" = "1",
    "inverted_index_storage_format" = "V3"
);

SHOW PARTITIONS FROM example_inverted_index_format
WHERE InvertedIndexStorageFormat = 'V3';

SHOW TABLET STORAGE FORMAT VERBOSE;

Example results (relevant columns):

PartitionName	InvertedIndexStorageFormat
p1	V3

BackendId	TabletId	StorageFormat	InvertedIndexStorageFormat
10001	123456789	V2	V3

Release note

SHOW PARTITIONS now displays and filters by InvertedIndexStorageFormat. SHOW TABLET STORAGE FORMAT now reports inverted-index storage formats for local and Cloud tablets.

Check List (For Author)

• Test

  • Regression test: regression-test/suites/cloud_p0/test_partition_cloud_inverted_index_format.groovy
  • Unit Test: ShowPartitionsCommandTest.java
  • Manual test (add detailed scripts or steps below)
  • No need to test or manual test. Explain why:
    • This is a refactor/code format and no logic has been changed.
    • Previous test can cover this change.
    • No code files have been changed.
    • Other reason

• Behavior changed:

  • No.
  • Yes. SHOW PARTITIONS and SHOW TABLET STORAGE FORMAT expose inverted-index storage formats, including Cloud mode.

• Does this need documentation?

  • No.
  • Yes.

Check List (For Reviewer who merge this PR)

• Confirm the release note
• Confirm test cases
• Confirm document
• Add branch pick label

[hello-stephen]

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