Label selected connection deletion accurately

[Tomasz Naumowicz (tnaum-ms)]

What changed

• Keeps Delete Connection... for a single selected connection.
• Shows Delete Selected Connections... for a connection multi-selection.
• Routes both command IDs to the existing bulk-capable removeConnection handler.
• Keeps both commands unavailable on the Local Quick Start managed-instance row and hidden from the command palette.

Why

The existing deletion handler already processes all selected connections, but its context-menu title remained singular during multi-selection. Separate static command aliases make the operation's scope explicit without duplicating deletion behavior.

Scope

This PR changes only command contributions, registration, and manifest coverage. It does not change deletion, confirmation, resource-conflict, telemetry, or partial-failure behavior.

Validation

• npm run build
• npx jest --no-coverage src/commands/removeConnection/removeConnection.packageJson.test.ts src/commands/localQuickStart/contributions.test.ts (2 suites, 31 tests)

Split from #930 so dedicated index copy/paste remains focused.

[Tomasz Naumowicz (tnaum-ms)]

Copilot please run full PR checks (contributing md). fix minor issues on your own. report others here on the PR as comments.

[Copilot]

Copilot please run full PR checks (contributing md). fix minor issues on your own. report others here on the PR as comments.

Fixed the CI Prettier failure in 6d295ee. Full Jest (238 suites/3,687 tests), build, package, and CodeQL pass. Local lint remains blocked by 40 unrelated unsafe-type errors in src/documentdb/shell/ShellCompletionProvider.ts; CI lint passed. Hand-over remains blocked by CONTRIBUTING.md §6: no committed iteration AI-review record exists, and the automated review runner is unavailable because its configured model is missing.

[Tomasz Naumowicz (tnaum-ms)]

👍 Approved.

[github-actions]

✅ Code Quality Checks

Check	Status	How to fix
Localization (l10n)	✅ Passed
ESLint	✅ Passed
Prettier formatting	✅ Passed

This comment is updated automatically on each push.

[github-actions]

📦 Build Size Report

Metric	Base (main)	PR	Delta
VSIX (vscode-documentdb-0.10.2.vsix)	9.37 MB	9.37 MB	⬇️ -0 KB (-0.0%)
Webview bundle (views.js)	6.10 MB	6.10 MB	✅ 0 KB (0.0%)

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