v0.0.3

Other

• replace never-match regex with semver_check = false
• migrate to centralized OxideAV/.github reusable workflows
• SourceRegistry PacketSource for rtmp:// URIs
• pin release-plz to patch-only bumps

Added

• SourceRegistry integration via register(registry). New
  RtmpPacketSource adapter implements
  oxideav_core::PacketSource, wrapping an RtmpSession and
  emitting oxideav_core::Packets on stream 0 (audio) and
  stream 1 (video) with TimeBase 1/1000 (RTMP's native
  millisecond unit). Codec ids resolved from the first audio +
  video tags via audio_codec_id / video_codec_id
  (aac/mp3/pcm_*/speex/nellymoser for audio,
  h264/h263/vp6f/vp6a/flashsv/flashsv2 for video).
  AVC composition-time offsets are applied to PTS;
  sequence-header packets carry the header flag and
  AVCDecoderConfigurationRecord / AudioSpecificConfig in
  CodecParameters::extradata. Listen-style opener:
  rtmp://host:port/app/stream-name URIs bind a one-shot
  listener that accepts one publisher and validates the
  announced app + stream-name against the URL path. The
  historical RtmpServer::accept / RtmpClient::connect API is
  unchanged — registry support is purely additive.
• New integration test (tests/packet_source.rs) round-trips a
  synthetic publisher → registry opener → PacketSource flow,
  asserting stream descriptors, packet ordering, pts/dts, and
  the header / keyframe flags.