agentic-sx Phase 1: schema — typed agentic objects over sx-git store (TDD)

Type registry (briefing / console-trace / behaviour TAG / agent-commit +
spawn/finding/refactor/test/session-merge/decision subtypes) with reflexive
transitive is-a? and create-only register-type!. Agent commits ARE git
commits (:agent-type rides as an open field, participates in the CID, DAG
machinery applies unchanged). 65/65.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

lib/agentic/scoreboard.md

@@ -0,0 +1,8 @@
+# agentic-sx Conformance Scoreboard
+
+_Generated by `lib/agentic/conformance.sh`_
+
+| Suite | Pass | Fail | Total |
+|-------|-----:|-----:|------:|
+| schema | 65 | 0 | 65 |
+| **Total** | **65** | **0** | **65** |