Parallel Processing — Ad fetching and orphan cleanup now run in parallel for faster campaign syncs

CBO Bid Fixes — Correct bid amount handling across all CBO campaign types

Multi-Advertiser Refinements — Improved default behavior and edge case handling for multi-advertiser ads

Orphan Cleanup — Automatic detection and removal of orphaned entities from Meta when re-publishing

Stream Stability — Fixed intermittent SSE stream interruptions during AI image generation