feat: add native PostgreSQL backup and restore

[Bhavik-ag]

Summary

• run pg_dump, pg_restore, and psql directly with shell disabled
• add native file selection, safe command preview, object filters, custom args, logs, and cancellation
• pass passwords only through PGPASSWORD and sanitize process output

Notes

• progress is streamed/indeterminate because PostgreSQL tools do not expose percentage progress
• directory archive format is not included; custom, plain SQL, and tar are supported

Validation

• desktop build
• monorepo typecheck
• desktop lint
• 61 desktop tests

[vercel]

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2 Skipped Deployments

Project	Deployment	Actions	Updated
dbdesk-web	Ignored		Sep 19, 2026 3:00am UTC
dbdesk-server	Skipped		Sep 19, 2026 3:00am UTC

[greptile-apps]

Confidence Score: 5/5

The pull request appears safe to merge, with no outstanding blocking or non-blocking findings.

Summary

Adds native PostgreSQL backup and restore support to the Electron desktop application.

• Runs pg_dump, pg_restore, and psql without a shell and supplies credentials through PGPASSWORD.
• Adds typed and runtime-validated IPC operations for file selection, previews, execution, cancellation, and progress events.
• Adds a workspace dialog for archive options, object filtering, logs, cancellation, and post-restore metadata refresh.
• Uses temporary output files to avoid replacing an existing backup until a new backup completes successfully.
• The changes since the previous review correctly permit single-worker restores while continuing to reject worker counts incompatible with transactional restore.

_{Reviews (4) · Last reviewed commit: "feat(desktop): add PostgreSQL backup and..."}