Decompose the 2026-07-16 design session into nine independent-context
nodes under plugins/os-sdlc/reference/, with OVERVIEW.md rewritten as
the central concept map + index. Also fixes the dangling
matt-pocock-skills-v1.1-notes.md reference (notes live in the vault as
matt-pocock-skills-v1-1-changes.md; ADR-0037 affected-paths cleaned).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VgG2g9ooqbnBiZYGAonGYG
jared