Improved code readability and uniformity by standardizing line breaks, indentation, and inline conditions across safety-related services, models, and tests, including content filters, validation rules, and emergency controls.
- Add MCPSafetyWrapper for safe MCP tool execution - Add MCPToolCall/MCPToolResult models for MCP interactions - Add SafeToolExecutor context manager - Add SafetyMetrics collector with Prometheus export support - Track validations, approvals, rate limits, budgets, and more - Support for counters, gauges, and histograms Issue #63
