frontend: Fix several issues with storybook tests

[sniok]

Fixes following issues with MSW configuration in storybook tests:

• Add missing mocks that would cause flaky results
• Fix definition of certain MSW handlers, when parameters.msw.handlers is an array it overrides base mocks.
• Add a check for missing network mocks

Steps to Test

cd frontend && npm run test

[illume]

🎉 thanks

The check will be quite useful.

[Copilot]

Pull Request Overview

This PR strengthens Storybook test reliability by catching unmocked network requests, improves MSW handler configuration to merge base and story-level mocks, and refreshes snapshots for newly rendered UI elements.

• Added detection for unhandled requests and enhanced error messages in storybook.test.tsx
• Changed parameters.msw.handlers from arrays to an object schema (story/storyBase) in many stories
• Updated Storyshots to include missing buttons and table markup

Reviewed Changes

Copilot reviewed 16 out of 16 changed files in this pull request and generated 1 comment.

File	Description
frontend/src/storybook.test.tsx	Added unhandledRequests tracking, request:unhandled listener, and more detailed fetch-error output
frontend/src/components//.stories.tsx	Refactored MSW config to use { handlers: { story, storyBase }}
frontend/src/components//snapshots//*.storyshot	Refreshed snapshots to include newly rendered buttons and table structure
frontend/src/components/resourceMap/GraphView.stories.tsx	Imported http & HttpResponse to mock HTTP endpoints

Comments suppressed due to low confidence (2)

frontend/src/storybook.test.tsx:202

• Jest’s expect doesn’t support a custom failure message as a second argument. Consider using expect(unhandledRequests).toHaveLength(0) and move the explanatory text into the test name or a comment.

          ).toEqual([]);

frontend/src/storybook.test.tsx:168

• [nitpick] If this listener setup is moved to a shared context (e.g., beforeEach), remember to clear unhandledRequests between tests to avoid state leakage.

          const unhandledRequests: Array<string> = [];

[skoeva]

LGTM 👍

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: illume, skoeva, sniok

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