fix: update password handling in proxy connection DTO to match upstream credentials

[Artuomka]

Summary by CodeRabbit

• Tests

  • Updated proxy connection tests to align credentials with upstream expectations and improve validation verification.

• Refactor

  • Improved test code organization and documentation clarity.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 04eb9e40-6e7f-4c62-8055-56075d3257ec

📥 Commits

Reviewing files that changed from the base of the PR and between ae90d17 and f2c0503.

📒 Files selected for processing (1)

• backend/test/ava-tests/saas-tests/saas-postgres-proxy-e2e.test.ts

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📝 Walkthrough

Walkthrough

The test file is updated to align proxy connection credentials with upstream expectations by sourcing the proxy password from upstream connection parameters rather than using a hardcoded value. A comment is also updated to document that the proxy verifies client credentials, and import ordering is adjusted.

Changes

Cohort / File(s)	Summary
Test Credential Alignment backend/test/ava-tests/saas-tests/saas-postgres-proxy-e2e.test.ts	Proxy password in createProxyConnectionDto now derives from upstreamConnectionParams.password instead of hardcoded 'proxy_pass'. Comment updated to reflect credential verification behavior. Import ordering adjusted.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Poem

🐰 A proxy finds its way so true,
With passwords pulled from upstream brew,
No more hardcoded secrets here—
Client credentials crystal clear! ✨

🚥 Pre-merge checks | ✅ 6

✅ Passed checks (6 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: updating password handling in the proxy connection DTO to use upstream credentials instead of a hardcoded value.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Security Check	✅ Passed	PR improves security by ensuring proxy credentials match upstream expectations and verify client credentials before forwarding, aligning with OWASP A2 best practices without introducing violations.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch backend_pg_proxy

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[Copilot]

Pull request overview

Updates the Postgres proxy E2E test connection DTO so the proxy client password matches the upstream password now required by the proxy’s credential verification.

Changes:

• Use upstreamConnectionParams.password for the proxy connection DTO password.
• Add clarifying comment explaining why the proxy DTO password must match upstream credentials.
• Minor import reordering to keep imports consistent after the change.

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