fix: correct Abiba platform label (pi not openclaw), add plugin skeletons, shared config, fix health port

- Replace all 'openclaw' references with 'pi' (pi coding harness)
- Fix Git remote URL in CONTEXT.md
- Harmonize health port to 9200 across all docs
- Add config.yaml.example with full schema
- Add pi-zulip-extension skeleton (TypeScript, pi Extension API)
- Add hermes-zulip-plugin skeleton (Python, BasePlatformAdapter)
- Add agent-zero-plugin skeleton (Python, A0 plugin API)
- Update ADR-007 with pi extension docs reference
- Document private topic ACL v1 limitation in CONTEXT.md

hermes-zulip-plugin/src/hermes_zulip/__init__.py

@@ -0,0 +1,11 @@
+"""
+Hermes Zulip Plugin — Core adapter for Hermes Python agents
+
+Implements BasePlatformAdapter to connect Hermes agents (Tanko, Mumuni,
+Koonimo, Koby) to the Sysloggh Zulip agent mesh.
+
+Path: hermes-zulip-plugin/src/hermes_zulip/
+Config: config.yaml (per-agent, deployed alongside plugin)
+"""
+
+__version__ = "0.1.0"