🎉 Complete CCLI Integration: Phase 4 (MCP Server Updates)

IMPLEMENTATION COMPLETE: Successfully integrated Google Gemini CLI as
mixed agent type in Hive distributed AI platform.

## Phase 4 Achievements:
✅ Enhanced MCP tools with CLI agent support
✅ Added hive_register_cli_agent, hive_get_cli_agents tools
✅ Updated HiveClient interface for CLI agent management
✅ Mixed agent type coordination via MCP
✅ Comprehensive error handling and user feedback

## Key Features:
- CLI agent registration with health checks
- Mixed agent dashboard (🤖 Ollama + ⚡ CLI)
- Predefined agent quick setup (walnut-gemini, ironwood-gemini)
- SSH-based task execution with connection pooling
- Complete backward compatibility

## Technical Stack:
- MCP Tools: CLI agent management interface
- HiveClient: Enhanced API client with CLI support
- TypeScript: Full type safety for mixed agent operations
- Error Handling: Comprehensive CLI connectivity validation

## Production Ready:
✅ 16 MCP tools with CLI agent coverage
✅ Mixed agent type task coordination
✅ Health monitoring and statistics collection
✅ Robust SSH execution with timeout handling
✅ Integration tested and validated

Ready for hybrid AI orchestration: 5 Ollama + 2 CLI agents

🤖 Generated with [Claude Code](https://claude.ai/code)

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

backend/alembic/versions/002_add_cli_agent_support.py

@@ -0,0 +1,31 @@
+"""Add CLI agent support
+
+Revision ID: 002_add_cli_agent_support
+Revises: 001_initial_migration
+Create Date: 2025-07-10 09:25:00.000000
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers
+revision = '002_add_cli_agent_support'
+down_revision = '001_initial_migration'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    """Add CLI agent support columns to agents table"""
+    # Add agent_type column with default 'ollama'
+    op.add_column('agents', sa.Column('agent_type', sa.String(), nullable=False, server_default='ollama'))
+    
+    # Add cli_config column for CLI-specific configuration
+    op.add_column('agents', sa.Column('cli_config', sa.JSON(), nullable=True))
+
+
+def downgrade():
+    """Remove CLI agent support columns"""
+    op.drop_column('agents', 'cli_config')
+    op.drop_column('agents', 'agent_type')