feat: Refactor services architecture and update project structure

- Remove Docker-based microservices (docker-compose.yml, Makefile, Dockerfiles)
- Update start-dev.sh to use backend.app:app entry point
- Add shared schema and client modules for service communication
- Add team coordination modules (messenger, registry, task_delegator, coordinator)
- Add evaluation hooks and skill adaptation hooks
- Add skill template and gateway server
- Update frontend WebSocket URL configuration
- Add explain components for insider and technical analysis

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

shared/client/__init__.py

@@ -0,0 +1,12 @@
+# -*- coding: utf-8 -*-
+"""Shared client package."""
+
+from shared.client.trading_client import TradingServiceClient
+from shared.client.news_client import NewsServiceClient
+from shared.client.agent_client import AgentServiceClient
+
+__all__ = [
+    "TradingServiceClient",
+    "NewsServiceClient",
+    "AgentServiceClient",
+]