Added backup dialog

[laurenastrid1]

Pull Request Template – vscode-mssql

Description

Added backup dialog

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	5390 KB	5410 KB	⚪ 20 KB ( 0% )
sql-database-projects VSIX	5672 KB	5672 KB	⚪ 0 KB ( 0% )
data-workspace VSIX	null KB	543 KB	⚪ 543 KB ( 0% )

[codecov-commenter]

Codecov Report

❌ Patch coverage is 92.22222% with 42 lines in your changes missing coverage. Please review.
✅ Project coverage is 67.51%. Comparing base (4a07f21) to head (2ed92e0).

Files with missing lines	Patch %	Lines
extensions/mssql/src/controllers/mainController.ts	21.05%	15 Missing ⚠️
...src/controllers/backupDatabaseWebviewController.ts	96.23%	11 Missing and 2 partials ⚠️
extensions/mssql/src/sharedInterfaces/backup.ts	88.46%	9 Missing ⚠️
extensions/mssql/src/services/backupService.ts	73.33%	4 Missing ⚠️
extensions/mssql/src/constants/locConstants.ts	98.41%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #20939      +/-   ##
==========================================
+ Coverage   66.86%   67.51%   +0.64%     
==========================================
  Files         219      223       +4     
  Lines       20986    21526     +540     
  Branches     2750     2813      +63     
==========================================
+ Hits        14033    14534     +501     
- Misses       6852     6889      +37     
- Partials      101      103       +2     

Files with missing lines	Coverage Δ
extensions/mssql/src/constants/constants.ts	100.00% <100.00%> (ø)
extensions/mssql/src/models/contracts/backup.ts	100.00% <100.00%> (ø)
extensions/mssql/src/services/sqlTasksService.ts	85.84% <100.00%> (+0.79%)	⬆️
extensions/mssql/src/sharedInterfaces/telemetry.ts	100.00% <100.00%> (ø)
extensions/mssql/src/constants/locConstants.ts	87.90% <98.41%> (+0.63%)	⬆️
extensions/mssql/src/services/backupService.ts	73.33% <73.33%> (ø)
extensions/mssql/src/sharedInterfaces/backup.ts	88.46% <88.46%> (ø)
...src/controllers/backupDatabaseWebviewController.ts	96.23% <96.23%> (ø)
extensions/mssql/src/controllers/mainController.ts	17.83% <21.05%> (+0.05%)	⬆️

... and 1 file with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[aasimkhan30]

I am also doing a framework for building object management dialogs and this does fit that pattern #20917

Let's try to merge the 2 branches so that we build something that's more consistent