Comprehensive refactoring across 70 files (net -298 lines) improving
type safety, error handling, and code organization:
- Replace .passthrough()/.catchall(z.unknown()) with .strip() in all Zod schemas
- Tighten Record<string, unknown> to bounded union types where possible
- Replace throw new Error with domain-specific exceptions (OrderException,
FulfillmentException, WhmcsOperationException, SalesforceOperationException, etc.)
- Split AuthTokenService (625 lines) into TokenGeneratorService and
TokenRefreshService with thin orchestrator
- Deduplicate FreebitClientService with shared makeRequest() method
- Add typed interfaces to WHMCS facade, order service, and fulfillment mapper
- Externalize hardcoded config values to ConfigService with env fallbacks
- Consolidate duplicate billing cycle enums into shared billingCycleSchema
- Standardize logger usage (nestjs-pino @Inject(Logger) everywhere)
- Move shared WHMCS number coercion helpers to whmcs-utils/schema.ts
- Adjusted .prettierrc to ensure consistent formatting with a newline at the end of the file.
- Reformatted eslint.config.mjs for improved readability by aligning array elements.
- Updated pnpm-lock.yaml to use single quotes for consistency across dependencies.
- Simplified worktree setup in .cursor/worktrees.json for cleaner configuration.
- Enhanced documentation in .cursor/plans to clarify architecture refactoring.
- Refactored various service files for improved readability and maintainability, including rate-limiting and auth services.
- Updated imports and exports across multiple files for consistency and clarity.
- Improved error handling and logging in service methods to enhance debugging capabilities.
- Streamlined utility functions for better performance and maintainability across the domain packages.
