Refactor SIGDS docs, archive DEC log, add pipe tests
- Updated all references to AcSignalRDataSource docs to new SIGNALR_DATASOURCE/README.md location; introduced SIGDS topic and paired issues/TODO files.
- Implemented new Decision Log archival policy: last-15-active entries remain, older entries moved to year-month archive (LLMP-DEC-65, 67); updated docs-archive skill for two-rule rotation.
- Added new SIGDS architectural TODO (ACCORE-SIGDS-T-D9F2) for relocating DataSource code.
- Updated doc tables, glossaries, and conventions for SIGDS.
- Added AcBinarySerializerPipeParallelTests.cs for parallel serialization/deserialization round-trip tests.
Expand META-TODO scope; add BINARY_TODO entries; doc updates
- Broadened ACCORE-META-T-F8R3 to cover SKILL.md/registry text drift, not just summary staleness
- Added concrete SKILL.md drift examples and clarified fix direction
- Added BINARY_TODOs for Id detection (convention/attribute) and serializer-native ignore attribute
- Updated SIGNALR_BINARY_PROTOCOL_TODO.md and ADR 0001 to clarify deferral of decorator base/handshake TODOs
- Minor topic code length and JSON-in-Binary tech debt clarifications
- Synced references and cross-links with latest protocol decisions
Loretta