feat: add health check script and update setup/service configurations

Health Check Script Addition:
✅ NEW SCRIPT ADDED: Comprehensive health check for all AITBC services
- health-check.sh: New executable script for service monitoring
- Reason: Provides centralized health monitoring for all services

✅ HEALTH CHECK FEATURES:
🔧 Core Services: Checks 6 services on ports 8000-8009
⛓️ Blockchain Services: Verifies node and RPC service status
🚀 AI/Agent/GPU Services: Checks 6 services on ports 8010-

apps/coordinator-api/src/app/models/__init__.py

@@ -3,7 +3,7 @@ Models package for the AITBC Coordinator API
 """
 
 # Import basic types from types.py to avoid circular imports
-from ..types import (
+from ..custom_types import (
     JobState,
     Constraints,
 )