Eliminate the errorCode property from server logger calls, error contract types, and API error bodies throughout the codebase. This reduces duplication and streamlines error reporting, relying on structured event names and error classes for identification. All affected API routes, server logic, and logging utilities have been updated for consistency. Documentation directory added for future reference.
Introduce `serverLogger` utility based on pino for consistent, structured logging across all server and API modules. Replace direct console logging with `serverLogger` and add request-scoped logging helpers. Update environment variable handling, documentation, and deployment guides to reflect new logging configuration (`LOG_FORMAT`, `LOG_LEVEL`, `COMPUTE_LOG_LEVEL`). Enforce no-console in server code via ESLint and add pino/pino-pretty dependencies.
This change standardizes log output, improves observability, and prepares the codebase for ingestion by log platforms.
