fix: add check for invalid encode/compress algorithm - 3.3.6

[localvar]

Description

Add server-side validation of column encode/compress/level algorithms at all entry points in mnode and vnode to prevent unsupported compression configurations from being persisted.

Changes:

• mnode (mndStb.c): Add validColCmprByType() checks in mndBuildStbFromReq(), mndBuildStbFromAlter(), and mndAddSuperTableColumn() for CREATE/ALTER STABLE operations
• vnode (metaTable2.c): Add validation in metaCreateNormalTable(), metaAddTableColumn(), and metaUpdateTableColCompress2() for normal table operations
• tests (stb.cpp): Add test cases for invalid encode, compress algorithm, and compress level rejection during CREATE STABLE, ALTER STABLE ADD COLUMN WITH COMPRESS, and ALTER STABLE MODIFY COLUMN COMPRESS

Issue(s)

• Close: https://project.feishu.cn/taosdata_td/defect/detail/6968559880

Checklist

Please check the items in the checklist if applicable.

• Is the user manual updated?
• Are the test cases passed and automated?
• Is there no significant decrease in test coverage?

[gemini-code-assist]

Code Review

This pull request introduces validation for column compression algorithms during table creation and alteration in both the mnode and vnode components. It ensures that the specified compression settings are compatible with the column's data type. Additionally, the test suite has been expanded to cover invalid compression configurations. Feedback was provided regarding an inconsistency in mndBuildStbFromReq where default compression was not being applied when no compression was specified, unlike in mndBuildStbFromAlter.

[Copilot]

Pull request overview

This PR adds server-side validation to reject unsupported column encode/compress/level configurations during CREATE/ALTER operations, ensuring invalid compression settings cannot be persisted in mnode/vnode metadata.

Changes:

• Add validColCmprByType() checks during STABLE create/alter flows in mnode.
• Add compression validation for normal table create/add-column/modify-compress flows in vnode meta.
• Extend mnode STABLE tests to cover invalid encode/compress algorithm and invalid level rejection across create/alter entry points.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
source/dnode/vnode/src/meta/metaTable2.c	Validates column compression algorithms for normal table creation and column compression updates.
source/dnode/mnode/impl/src/mndStb.c	Adds compression validation when building STABLE metadata from create/alter requests.
source/dnode/mnode/impl/test/stb/stb.cpp	Adds unit tests for invalid compress settings in CREATE/ALTER STABLE scenarios.

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