fix: enhance oidc logs

[astandrik]

Closes #3786

CI Results

Test Status: ⚠️ FLAKY

📊 Full Report

Total	Passed	Failed	Flaky	Skipped
608	598	0	7	3

Test Changes Summary ✨1

✨ New Tests (1)

1. Full-page — whoami recoverable XHR network error restores 504 and worker details (errorDisplay/errorDisplay.test.ts)

Bundle Size: 🔺

Current: 63.40 MB | Main: 63.39 MB
Diff: +6.88 KB (0.01%)

⚠️ Bundle size increased. Please review.

ℹ️ CI Information

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[Copilot]

Pull request overview

This PR improves diagnostics for OIDC/Proxy-related failures by recovering HTTP response details (status, headers, URL, body) from certain Axios ERR_NETWORK cases where the underlying XHR actually completed with a valid HTTP status (e.g., 504). This makes error display/logging more informative and adds regression coverage.

Changes:

• Add recovery logic in the base Axios response error handler to reconstruct error.response from XHR fields on ERR_NETWORK.
• Add unit tests for response recovery + ensure redirect-to-auth / NEED_RESET behaviors remain compatible.
• Add E2E coverage and screenshots for a “recoverable XHR ERR_NETWORK → 504 + x-worker-name” scenario.

Reviewed changes

Copilot reviewed 5 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/services/api/base.ts	Adds XHR-based recovery for ERR_NETWORK and factors interceptor error logic into handleBaseApiResponseError.
src/services/api/__test__/base.test.ts	Unit tests for recovered response shape, header parsing, JSON parsing, and NEED_RESET behavior.
src/utils/errors/__test__/extractErrorDetails.test.ts	Verifies extractErrorDetails includes HTTP details when ERR_NETWORK has recovered HTTP metadata.
tests/suites/errorDisplay/errorDisplayMocks.ts	Adds Playwright init-script mock that forces Axios to throw ERR_NETWORK with XHR-like request details.
tests/suites/errorDisplay/errorDisplay.test.ts	Adds full-page E2E test asserting 504/title/headers are shown for recovered network error.
tests/suites/errorDisplay/errorDisplay.test.ts-snapshots/*.png	New visual snapshots for the added E2E scenario (Chromium/Safari on Linux).