Initial commit: Elydora Open Source — self-hosted audit platform for AI agents

Full self-hosted port of the Elydora tamper-evident audit protocol:
- Hono API server with PostgreSQL, Redis, MinIO adapters
- Ed25519 signed operations, chain hashing, Merkle epoch rollups
- PBKDF2 password hashing, HMAC-SHA256 JWT, 5-role RBAC
- Next.js management console
- Node.js, Python, and Go SDKs
- Docker Compose for local deployment
- Helm chart for Kubernetes
- Comprehensive security hardening and audit fixes applied

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

sdks/python/elydora/plugins/base.py

@@ -0,0 +1,45 @@
+"""Abstract base class for agent plugins."""
+
+from __future__ import annotations
+
+import sys
+from abc import ABC, abstractmethod
+from typing import Any, Dict
+
+if sys.version_info >= (3, 11):
+    from typing import TypedDict
+else:
+    from typing_extensions import TypedDict
+
+
+class InstallConfig(TypedDict, total=False):
+    org_id: str
+    agent_id: str
+    agent_name: str
+    private_key: str
+    kid: str
+    token: str
+    base_url: str
+    guard_script_path: str
+
+
+class PluginStatus(TypedDict):
+    installed: bool
+    agent: str
+    details: str
+
+
+class AgentPlugin(ABC):
+    """Base class for all agent plugins."""
+
+    @abstractmethod
+    def install(self, config: InstallConfig) -> None:
+        """Install the Elydora hook for this agent."""
+
+    @abstractmethod
+    def uninstall(self, agent_id: str = "") -> None:
+        """Remove the Elydora hook for this agent."""
+
+    @abstractmethod
+    def status(self) -> PluginStatus:
+        """Check whether the Elydora hook is installed for this agent."""