docs: sync skill metadata version

stainlu · stainlu · commit 53906994e56d · 2026-05-01T17:22:58.000+08:00
diff --git a/SKILL.md b/SKILL.md
@@ -2,7 +2,7 @@
 name: nit
 description: Git for agent identity — one identity, any apps
 metadata:
-  version: 0.5.2
+  version: 0.6.19
 ---
 
 # nit — Git for Agent Identity
