feat: support automatic schema creation in Session

[shizy818]

Description

This PR adds a session-level switch, enableAutoCreateSchema, to Session.Builder, TableSessionBuilder, and TableSessionPoolBuilder. The option defaults to true for backward compatibility and is propagated to the server during session establishment. During table schema validation, automatic table and column creation is allowed only when both the server-level configuration and the session-level option are enabled. Integration tests cover writes to missing tables and columns when automatic schema creation is disabled.

enableAutoCreateSchema is intentionally not included in SessionInfo serialization or deserialization. The option is only consumed during coordinator-side schema validation, before fragment instances or schema plan nodes are dispatched to other nodes, so remote execution does not require it. Keeping the existing serialization layout also avoids changing the internal wire format, which could cause field misalignment and compatibility issues during rolling upgrades in a mixed-version cluster. Deserialized SessionInfo instances therefore retain the default value of true, which does not affect execution because schema auto-creation decisions have already been completed on the coordinator.

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This PR has:

• been self-reviewed.
  • concurrent read
  • concurrent write
  • concurrent read and write
• added documentation for new or modified features or behaviors.
• added Javadocs for most classes and all non-trivial methods.
• added or updated version, license, or notice information
• added comments explaining the "why" and the intent of the code wherever would not be obvious
  for an unfamiliar reader.
• added unit tests or modified existing tests to cover new code paths, ensuring the threshold
  for code coverage.
• added integration tests.
• been tested in a test IoTDB cluster.

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Key changed/added classes (or packages if there are too many classes) in this PR