Merge pull request #426 from Jehu/add-a0hindsight

feat: add a0hindsight

Author: 3clyp50

plugins/a0hindsight/index.yaml

@@ -0,0 +1,7 @@
+title: Hindsight Memory
+description: Hindsight retain/recall memory integration for Agent Zero using lifecycle hooks.
+github: https://github.com/Jehu/a0-hindsight
+tags:
+  - memory
+  - integration
+  - tools