feat: support databend and tidb

[ariesdevil]

Problem

Support Databend and TiDB.

Databend is an enterprise data warehouse for AI agents that written in Rust.
Large-scale analytics, vector search, full-text search — with flexible agent orchestration and secure Python UDF sandboxes. Built for enterprise AI workloads.

TiDB is built for agentic workloads that grow unpredictably, with ACID guarantees and native support for transactions, analytics, and vector search. No data silos. No noisy neighbors. No infrastructure ceiling.

Proposed solution

No response

Alternatives considered

No response

Related database type

None

[J2TeamNNL]

Opened a PR that adds TiDB and Databend as MySQL-protocol connection types: #2711
This should also close #2514 (same TiDB request).