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>

backend/agents/team/__init__.py

@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -*-
+"""Team module for multi-agent orchestration.
+
+Provides inter-agent communication, task delegation, and coordination
+for subagent spawning and lifecycle management.
+"""
+
+from .messenger import AgentMessenger
+from .task_delegator import TaskDelegator
+from .team_coordinator import TeamCoordinator
+from .registry import AgentRegistry
+
+__all__ = [
+    "AgentMessenger",
+    "TaskDelegator",
+    "TeamCoordinator",
+    "AgentRegistry",
+]