v1.7.0dfossic2026-06-21

Substrate extension patterns reference doc

New reference document covering seven canonical patterns for authors of sibling crates and substrate extensions, source-verified against v1.7.1.

v1.7.0d2026-06-21
  • ·Seven patterns documented: SystemStreamWriter lazy-Mutex, TaskKind::Custom closure capture, optimistic timestamp at schedule time, Arc::strong_count shutdown, StoreOps v1 workaround, cross-language binding constraints, documentation discipline
  • ·All claims source-verified with file:line citations before writing; three discrepancies between brief and reality documented in-place
  • ·Footer captures CP-D2-1, CP-D2-2, CP-FOSSIC-OBSERVABILITY-RESET, CP-FOSSIC-PY-VERSION-STRING with CP marker convention paragraph