fix(types): Fix TypeScript build errors and improve API type safety across platformservice interfaces

readme.plan.md

@@ -2,6 +2,16 @@
 
 ## Latest Changes
 
+### API Type Safety Improvements
+- [x] Create comprehensive TypeScript interfaces for all API methods
+- [x] Replace any types with specific interfaces in EmailService and MtaConnector
+- [x] Align interface types with their implementations
+- [x] Document all interface properties with detailed JSDoc comments
+- [x] Use type imports to ensure consistency between services
+- [x] Fix TypeScript build errors from interface placements
+- [x] Add proper method signatures for API endpoint handlers
+- [x] Implement type-safe API responses
+
 ### Test Stability Improvements
 - [x] Fix race conditions in SenderReputationMonitor tests
 - [x] Disable filesystem operations during tests to prevent race conditions
@@ -9,6 +19,27 @@
 - [x] Ensure all tests properly clean up shared resources
 - [x] Set consistent test environment with NODE_ENV=test
 
+### Error Handling Improvements
+- [ ] Add structured error types for better error reporting
+- [ ] Implement consistent error handling patterns across services
+- [ ] Add detailed error context for debugging
+- [ ] Create retry mechanisms for transient failures
+- [ ] Improve error logging with structured data
+
+### Configuration Interface Standardization
+- [ ] Define consistent configuration interfaces across services  
+- [ ] Implement validation for all configuration objects
+- [ ] Add default values for optional configuration
+- [ ] Create documentation for all configuration options
+- [ ] Add migration helpers for configuration format changes
+
+### Logging Enhancements
+- [ ] Implement structured logging throughout the codebase
+- [ ] Add context information to all log messages
+- [ ] Create consistent log levels and usage patterns
+- [ ] Add correlation IDs for request tracking
+- [ ] Implement log filtering and sampling options
+
 ### Mailgun Removal
 - [x] Remove Mailgun integration from keywords in package.json and npmextra.json
 - [x] Update EmailService comments to remove mentions of Mailgun