fix: handle deleted project gracefully in span ingestion worker

[geclos]

Problem

The error NotFoundError: Project not found occurs in CommitsRepository.getCommitByUuid during the ingestSpansJob BullMQ job. This happens when span telemetry references a project that has been deleted, but the ingestion job still tries to process it.

Solution

Added a check after calling commitsRepo.getCommitByUuid() to verify if the result is OK before proceeding. If the result is an error (project not found), the function now returns early gracefully instead of throwing a NotFoundError.

Changes

• In process function: Added if (!Result.isOk(commitResult)) return commitResult check before calling .unwrap()

This follows the pattern used elsewhere in the codebase (e.g., getResolvedData function).