feat(skills): integrate optional domain context workflow from PR 3411

Preserve full contributor head; refresh catalogs and Pi projection. Verify disposable Claude/Codex installs and resource discovery, with no automatic hooks or governance files.

package.json

@@ -205,6 +205,7 @@
     "skills/compose-multiplatform-patterns/",
     "skills/configure-ecc/",
     "skills/contract-first/",
+    "skills/context-and-decisions/",
     "skills/connections-optimizer/",
     "skills/content-engine/",
     "skills/content-hash-cache-pattern/",