refactor API requests to include organizationId in request body; improve batch processing for log identifiers

[Polliog]

This pull request updates several backend API endpoints and their corresponding frontend calls to consistently accept the organizationId parameter in the request body (preferred) instead of the query string, improving API design and forward compatibility. Additionally, it introduces batching for identifier lookups to respect API limits and ensures POST requests include an empty body where required.

API Request Parameter Handling:

• Updated backend endpoints in detection-packs/routes.ts and notification-channels/routes.ts to accept organizationId from the request body (preferred) or query string (legacy), with improved error messaging. [1] [2]
• Updated frontend API methods (DetectionPacksAPI.disablePack, notificationChannelsAPI.test) to send organizationId in the POST request body instead of as a query parameter. [1] [2]

Batching and Performance Improvements:

• Enhanced the CorrelationAPI.getIdentifiersForLogIds method to batch requests in groups of 100 log IDs and merge results, improving scalability and respecting API limits.

Request Consistency:

• Ensured POST requests in AdminAuthAPI.testConnection, InvitationsAPI.resendInvitation, and OrganizationsAPI.leaveOrganization include an empty body for consistency and future-proofing. [1] [2] [3]

[codecov]

Codecov Report

❌ Patch coverage is 89.88764% with 9 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
packages/backend/src/server.ts	68.75%	5 Missing ⚠️
packages/backend/src/modules/ingestion/routes.ts	90.62%	3 Missing ⚠️
packages/backend/src/modules/ingestion/service.ts	95.45%	1 Missing ⚠️

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