feat: add mssql support

[JCofman]

Hi 👋,

Thanks a lot for this great extension! I really like the concept and the idea of using diffs via VS Code. I've added support for MSSQL databases. I've already tested it in production and haven't found any major issues. Since I needed to authenticate via both Windows Auth and username/password, I also had to implement the msnode sqlv8 driver in addition to mssql.
It's working for now, but I haven't fully battle-tested it yet 🙈.

Feel free to add any suggestions!

[Copilot]

Pull Request Overview

This PR adds MSSQL database support to the extension, enabling database migration operations for both Windows Authentication and username/password authentication on SQL Server databases. The implementation includes a new provider architecture for database abstraction and specific handling for MSSQL-specific features like IDENTITY_INSERT.

Key changes include:

• Implementation of database provider pattern with PostgreSQL and MSSQL providers
• Added MSSQL-specific query generation with proper identifier escaping and value handling
• Enhanced migration logic with IDENTITY_INSERT handling and boolean literal normalization for MSSQL

Reviewed Changes

Copilot reviewed 19 out of 22 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
src/utils/utils.ts	Updated type definitions and database info generation to support multiple database types
src/utils/types.ts	Added common query result interface for database abstraction
src/utils/query.ts	Enhanced query builders with database-specific SQL generation and identifier escaping
src/utils/database/*.ts	New database provider architecture with PostgreSQL and MSSQL implementations
src/commands/migrateDataAsync.ts	Added MSSQL migration logic with IDENTITY_INSERT handling and boolean normalization
src/commands/actions/*.ts	Updated to use new database provider pattern instead of direct PostgreSQL client
package.json	Added MSSQL dependencies (mssql, msnodesqlv8, @types/mssql)

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[BryanAldrich]

I'm interested in using this, but when I try to build the PR it fails. I've never built a vs code extension before, but it complains about the sqlserver.node file.
X [ERROR] No loader is configured for ".node" files: node_modules/msnodesqlv8/build/Release/sqlserver.node
I'm happy to either learn how to fix, or if you want to provide a prebuilt, that'd be awesome.

[JCofman]

@BryanAldrich yes you are right I did only test it via the build in debugger in VSCode. I have now added the correct configuration to build the extension for native clients. But since mssql package cannot run in a webworker this extension can only be build for native VSCode clients now. 🥲

[BryanAldrich]

data-sync-1.0.31.vsix.zip

(for those interested).
and myself, because i can't actually build this on my work machine because for some reason, npm is blocked.

It isn't working, none of the UI buttons work and throw errors.

[BryanAldrich]

Error running command data-sync.import-analyze-data: command 'data-sync.import-analyze-data' not found. This is likely caused by the extension that contributes data-sync.import-analyze-data.