Modified auth interceptor and added a test on top

[CapoMK25]

Brief description

Issue #955

I added a test to check that the behavior doesn't repeat again on top of doing the changes to the file. The functionality in the authorization interceptor file is now split into two use cases: the single object logic that was present originally, and the array logic that's added as a new addition on top of that.

Change list

• Updated AuthorizationInterceptor (src/authorization/authorization.interceptor.ts) to detect top-level array payloads (Array.isArray(request.body)) during UPDATE requests.

• Refactored permission evaluation to iterate over array items individually with plainToInstance(), ensuring CASL checks permissions against individual DTO instances rather than the outer Array container type.

• Applied lodash.pick() per item in array bodies to prevent field stripping and maintain correct array structure.

• Preserved original single-object handling logic for standard non-array update payloads.

• Added a new unit test suite (src/__tests__/authorization/authorizationInterceptor.array.test.ts) to provide testing coverage for top-level array updates passing through the authorization interceptor.

[codecov-alt]

Codecov Report

❌ Patch coverage is 87.50000% with 2 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/authorization/authorization.interceptor.ts	87.50%	2 Missing ⚠️

Files with missing lines	Coverage Δ
src/authorization/authorization.interceptor.ts	72.47% <87.50%> (+52.88%)	⬆️

... and 3 files with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[tickBit]

Looks good to me. Approved.