refactor: remove AgentRegistry and related tests from the codebase

python/valuecell/core/agent/README.md

@@ -9,7 +9,6 @@ The ValueCell Agent System is a distributed intelligent agent framework based on
 - 🌐 **Distributed Architecture**: Support for both local and remote Agent connections
 - 📡 **Push Notifications**: Optional push notification functionality
 - 🔧 **Flexible Configuration**: Support for automatic port allocation and custom configuration
-- 📋 **Agent Registry**: Unified management of all Agent instances
 
 ## Quick Start
 
@@ -156,23 +155,6 @@ card = await client.get_agent_card()
 await client.close()
 ```
 
-### 4. Agent Registry
-
-`AgentRegistry` manages all registered Agents:
-
-```python
-from valuecell.core.agent.registry import AgentRegistry
-
-# List all registered Agents
-agents = AgentRegistry.list_agents()
-
-# Get specific Agent class
-agent_class = AgentRegistry.get_agent("AgentName")
-
-# Get registry detailed information
-info = AgentRegistry.get_registry_info()
-```
-
 ## Complete Examples
 
 ### Example 1: Multi-Agent System

python/valuecell/core/agent/__init__.py

@@ -3,11 +3,9 @@
 # Core agent functionality
 from .client import AgentClient
 from .connect import RemoteConnections
-from .registry import AgentRegistry
 
 __all__ = [
     # Core agent exports
     "AgentClient",
     "RemoteConnections",
-    "AgentRegistry",
 ]