[Application QuickStart] [Backend] Adding Database context menu item to open DAB tab directly in Schema Designer webview

[manujoseph85]

Description

This pull request introduces a new "Build Data API..." command to the MSSQL extension, enhances the schema designer command description, and updates command grouping for improved clarity and usability.

New Data API Command Integration

• Added a new command mssql.buildDataApi to package.json, including its activation condition in Object Explorer and registration in the command palette. This command is only available when the enableDAB config is set
• Implemented the command handler in mainController.ts to show the Data API tab in the schema designer webview (by setting activeView in the state)
• Added the method showSchemaDesignerView to SchemaDesignerWebviewController to support toggling between schema designer and Data API views.

Command Grouping and UI

• Updated the grouping of server and database actions in package.json to accommodate the new Data API command and ensure correct ordering of commands in the UI.

Code Changes Checklist

• New or updated unit tests added
• All existing tests pass (npm run test)
• Code follows contributing guidelines
• Telemetry/logging updated if relevant
• No regressions or UX breakage

Reviewers: Please read our reviewer guidelines

[github-actions]

PR Changes

Category	Target Branch	PR Branch	Difference
vscode-mssql VSIX	6400 KB	6386 KB	⚪ -14 KB ( 0% )
sql-database-projects VSIX	7024 KB	7024 KB	⚪ 0 KB ( 0% )
data-workspace VSIX	535 KB	535 KB	⚪ 0 KB ( 0% )

[codecov-commenter]

Codecov Report

❌ Patch coverage is 46.66667% with 16 lines in your changes missing coverage. Please review.
✅ Project coverage is 72.82%. Comparing base (8deebc1) to head (d31b56c).
⚠️ Report is 14 commits behind head on main.

Files with missing lines	Patch %	Lines
extensions/mssql/src/controllers/mainController.ts	39.13%	14 Missing ⚠️
extensions/mssql/src/copilot/chatCommands.ts	50.00%	1 Missing ⚠️
.../schemaDesigner/schemaDesignerWebviewController.ts	50.00%	1 Missing ⚠️

❌ Your patch status has failed because the patch coverage (46.66%) is below the target coverage (70.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #21466      +/-   ##
==========================================
- Coverage   72.83%   72.82%   -0.01%     
==========================================
  Files         325      325              
  Lines       96419    96446      +27     
  Branches     5411     5411              
==========================================
+ Hits        70227    70239      +12     
- Misses      26192    26207      +15     

Files with missing lines	Coverage Δ
extensions/mssql/src/constants/constants.ts	100.00% <100.00%> (ø)
extensions/mssql/src/copilot/tools/dabTool.ts	98.92% <100.00%> (+<0.01%)	⬆️
extensions/mssql/src/copilot/chatCommands.ts	89.26% <50.00%> (-0.17%)	⬇️
.../schemaDesigner/schemaDesignerWebviewController.ts	84.48% <50.00%> (ø)
extensions/mssql/src/controllers/mainController.ts	30.38% <39.13%> (+0.06%)	⬆️

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[Copilot]

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[caohai]

Any reason to add ... at the end?