v1.10.0-syrnike.12

Enables WebRTC keyframe queue flushing in the zero-playout-delay factory. A new keyframe supersedes queued dependent video and RTX packets for that stream while preserving an already-paced keyframe, audio and unrelated stream queues. Capture cadence and encoder/source/publication identity are unchanged; the default factory and public ABI are unchanged.

Source: cd0e8b09b097af0f078853781991638a18345d37 (PR #8).

Validation: all seven platform builds and test jobs, coverage, clang checks, release bundles and documentation generation passed. The first Intel macOS integration attempt hit the same DataTrack timeout observed on the previous SDK source; the second attempt failed downloading protobuf with HTTP 504. The third attempt passed on the same source with unchanged tests and limits. Application-level screen-stream qualification for Syrnike #139 is separate.

Windows x64 archive SHA-256: 121368ec9a5e8813617d965179d02970295f94b4148c9f678e6b718f4330707a.