createLogger (utils/logger.ts)

Provides a configurable Pino-based logger with rotation, error handling, and redaction for production use.

// Source: https://github.com/diegosouzapw/OmniRoute | License: MIT | Copyright 2026 diegosouzapw
// Provided via justclaw.it.com; keep this notice with the code.
/**
 * Structured Logger — Pino-based logger for OmniRoute
 *
 * Usage:
 *   import { logger } from "@/shared/utils/logger";
 *   const log = logger.child({ module: "proxy" });
 *   log.info({ model: "gpt-4o" }, "Request received");
 *   log.error({ err }, "Connection failed");
 *
 * In development, output is pretty-printed via pino-pretty.
 * In production, output is structured JSON for log aggregation.
 *
 * When APP_LOG_TO_FILE is enabled (default: true), logs are also written
 * as JSON lines to the file specified by APP_LOG_FILE_PATH.
 */
import pino from "pino";
import { EventEmitter } from "events";
import { resolve } from

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