Show pre-deleted table schemas and improve write errors

[Caideyipi]

Description

Table schema operations can remain in PRE_DELETE or PRE_ALTER while a DROP or ALTER COLUMN procedure is incomplete. Existing metadata and cache paths can hide these objects, report misleading missing/already-existing errors, or leave stale column types after failure and recovery.

• Include PRE_DELETE tables in SHOW TABLES without DETAILS while continuing to hide PRE_CREATE tables. Keep pre-deleted columns in plain DESC and retain the existing presentation of pending type changes.
• Report tables or columns being deleted, and reject conflicting schema changes on columns being altered, with guidance to wait or retry. Use SEMANTIC_ERROR so IF NOT EXISTS and automatic schema creation cannot suppress these failures as ordinary duplicates. Provide both English and Chinese messages.
• Check pre-deleted columns on the missing-column write path once per request, including INSERT and TsFile loading with automatic schema creation disabled. Existing-column writes do not perform an additional RPC.
• Exclude pre-deleted columns from DataNode cache initialization, refresh, and column-extension schemas so these paths cannot restore their writability. Propagate pending column types to DataNodes while keeping DESC based on the complete metadata.
• Add a consensus rollback plan for PRE_ALTER column type changes and make the procedure rollback-safe across failures and restarts. Detect already-committed alterations, clear only the matching pending marker, and prevent an older rollback from overwriting a newer alteration.
• Track the previous DataNode table schema during pre-update so rollback can restore it after a concurrent cache refresh. If the previous schema is unavailable after restart, evict the potentially stale entry and fetch the canonical ConfigNode schema; delayed rollback after commit is ignored.

Validation

• Added targeted unit coverage for PRE_DELETE visibility and write checks, PRE_ALTER plan serialization and procedure rollback, restart recovery, stale/delayed rollback handling, and DataNode cache restoration.
• Spotless and Checkstyle passed for the changed modules; English/Chinese message keys and placeholders match.
• Full-reactor English and Chinese test-compile -DskipTests passed for the affected reactor (Node Commons, DataNode, ConfigNode, and dependencies).
• Current GitHub Actions checks pass, including Linux/Windows unit tests and zh-locale compilation.

This PR has:

• been self-reviewed.
• added unit tests for the changed behavior and cache refresh/recovery paths.

No integration cluster was started locally for this change.