Add ADR-0003: AcBinary streaming receive unification
- Add cross-cutting ADR-0003 for AsyncPipeReaderInput and transport-agnostic streaming helpers (NamedPipe, FileStream)
- Update BINARY and SIGNALR_BINARY_PROTOCOL docs to reference ADR-0003
- Add migration TODOs for each ADR-0003 step with acceptance criteria
- Add project ADR-0001 (binary projection serialization) and index
- Clarify buffer sizing and ADR refs in SegmentBufferReader docs
- Migrate JWT key/token log issues from LOGGING to new AUTH topic per ADR
- Update ADR template and improve doc formatting throughout
