feat: add security, observability layers and update documentation

feat: add Triage Agent with tool-first prompt for MCP compliance

fix(agents): pass location data to map from validate_address results and show clear error when MCP server is unavailable

feat(app): integrate updated MCP server with edge case handling

refactor(agents): migrate to smolagents controller/worker architecture

refactor(agents): migrate to smolagents controller/worker architecture

feat: implement multi-agent architecture with smolagents