feat(docs): Update documentation to include consolidated email handling and pattern‑based routing details

readme.plan.md

@@ -187,7 +187,7 @@ interface IDcRouterOptions {
 ## 1. Core Architecture for Consolidated Email Processing
 
 ### 1.1 Unified Email Server
-- [ ] Create a unified email server component
+- [x] Create a unified email server component
   - Build on existing SmtpServer class but with enhanced routing capabilities
   - Configure to listen on standard ports (25, 587, 465) for all email handling
   - Implement TLS support (STARTTLS and implicit TLS)
@@ -195,7 +195,7 @@ interface IDcRouterOptions {
   - Set up size limits and connection timeouts
 
 ### 1.2 Pattern-Based Domain Router
-- [ ] Create pattern matching system for email domains
+- [x] Create pattern matching system for email domains
   - Implement glob pattern matching for email addresses
   - Support patterns like `*@domain.com`, `*@*.domain.com`
   - Create priority-based matching system (most specific match wins)
@@ -203,7 +203,7 @@ interface IDcRouterOptions {
   - Implement a fast lookup mechanism for incoming emails
 
 ### 1.3 Multi-Modal Processing System
-- [ ] Create a unified processing system with multiple modes
+- [x] Create a unified processing system with multiple modes
   - Forward mode: SMTP proxy functionality with enhanced routing
   - MTA mode: Programmatic email handling with local delivery options
   - Process mode: Full store-and-forward pipeline with content scanning
@@ -211,17 +211,17 @@ interface IDcRouterOptions {
   - Create fallback handling for unmatched domains
 
 ### 1.4 Shared Infrastructure
-- [ ] Develop shared components across all email handling modes
-  - Create unified delivery queue for all outbound email
-  - Implement shared authentication system
-  - Build common TLS and certificate management
-  - Create uniform logging and metrics collection
-  - Develop shared rate limiting and throttling
+- [x] Develop shared components across all email handling modes
+  - [x] Create unified delivery queue for all outbound email
+  - [x] Implement shared authentication system
+  - [x] Build common TLS and certificate management
+  - [x] Create uniform logging and metrics collection
+  - [x] Develop shared rate limiting and throttling
 
 ## 2. Consolidated Email Processing Features
 
 ### 2.1 Pattern-Based Routing
-- [ ] Implement glob pattern-based email routing
+- [x] Implement glob pattern-based email routing
   - Create glob pattern matching for both domains and full email addresses
   - Support wildcards for domains, subdomains, and local parts (e.g., `*@domain.com`, `user@*.domain.com`)
   - Add support for pattern matching priorities (most specific wins)
@@ -229,7 +229,7 @@ interface IDcRouterOptions {
   - Create comprehensive test suite for pattern matching
 
 ### 2.2 Multi-Modal Processing
-- [ ] Develop multiple email handling modes
+- [x] Develop multiple email handling modes
   - Forward mode: Simple SMTP forwarding to another server with enhanced routing
   - MTA mode: Process with the MTA for programmatic handling and local delivery
   - Process mode: Full store-and-forward processing with content scanning
@@ -237,25 +237,25 @@ interface IDcRouterOptions {
   - Implement seamless mode transitions based on patterns
 
 ### 2.3 Content Inspection and Transformation
-- [ ] Enhance content inspection for processing mode
-  - Improve MIME parsing and content extraction capabilities
-  - Enhance attachment scanning and filtering
-  - Add text analysis for spam and phishing detection
-  - Create more robust transformation framework
-  - Support content-based routing decisions
+- [x] Enhance content inspection for processing mode
+  - [x] Improve MIME parsing and content extraction capabilities
+  - [x] Enhance attachment scanning and filtering
+  - [x] Add text analysis for spam and phishing detection
+  - [x] Create more robust transformation framework
+  - [x] Support content-based routing decisions
 
 ### 2.4 Unified Rate Limiting and Traffic Control
-- [ ] Build unified rate limiting across all modes
-  - Implement pattern-based rate limits
-  - Create hierarchical rate limiting (global, pattern, IP)
-  - Add real-time rate limit monitoring
-  - Develop traffic shaping capabilities
-  - Implement backpressure mechanisms for overload protection
+- [x] Build unified rate limiting across all modes
+  - [x] Implement pattern-based rate limits
+  - [x] Create hierarchical rate limiting (global, pattern, IP)
+  - [x] Add real-time rate limit monitoring
+  - [x] Develop traffic shaping capabilities
+  - [x] Implement backpressure mechanisms for overload protection
 
 ## 3. DcRouter Integration
 
 ### 3.1 Unified Configuration Interface
-- [ ] Implement the consolidated emailConfig interface
+- [x] Implement the consolidated emailConfig interface
   - Create the IEmailConfig interface with all required components
   - Replace existing SMTP, forwarding, and MTA configs with unified approach
   - Add backward compatibility layer for existing configurations
@@ -263,7 +263,7 @@ interface IDcRouterOptions {
   - Add clear documentation and examples in code comments
 
 ### 3.2 Enhanced Management API
-- [ ] Develop enhanced management API for consolidated email handling
+- [x] Develop enhanced management API for consolidated email handling
   - Create unified status reporting across all modes
   - Implement pattern-based rule management (add, update, remove)
   - Add comprehensive queue management across all modes
@@ -271,7 +271,7 @@ interface IDcRouterOptions {
   - Implement enhanced configuration update methods
 
 ### 3.3 Unified Metrics and Logging
-- [ ] Create a unified metrics system for all email handling
+- [x] Create a unified metrics system for all email handling
   - Develop pattern-based metrics collection
   - Implement mode-specific performance metrics
   - Create pattern rule effectiveness measurements
@@ -990,36 +990,36 @@ export class DcRouter {
 ## 5. Implementation Phases
 
 ### Phase 1: Core Architecture and Pattern Matching
-- [ ] Create the UnifiedEmailServer class foundation
-- [ ] Implement the DomainRouter with glob pattern matching
-- [ ] Build pattern priority system (most specific match first)
-- [ ] Create pattern caching mechanism for performance
-- [ ] Implement validation for email patterns
-- [ ] Build test suite for pattern matching system
+- [x] Create the UnifiedEmailServer class foundation
+- [x] Implement the DomainRouter with glob pattern matching
+- [x] Build pattern priority system (most specific match first)
+- [x] Create pattern caching mechanism for performance
+- [x] Implement validation for email patterns
+- [x] Build test suite for pattern matching system
 
 ### Phase 2: Multi-Modal Processing Framework
-- [ ] Build the MultiModeProcessor class
-- [ ] Implement mode-specific handlers (forward, MTA, process)
-- [ ] Create processing pipeline for each mode
-- [ ] Implement content scanning for process mode
-- [ ] Build shared services infrastructure
-- [ ] Add validation for mode-specific configurations
+- [x] Build the MultiModeProcessor class
+- [x] Implement mode-specific handlers (forward, MTA, process)
+- [x] Create processing pipeline for each mode
+- [x] Implement content scanning for process mode
+- [x] Build shared services infrastructure
+- [x] Add validation for mode-specific configurations
 
 ### Phase 3: Unified Queue and Delivery System
-- [ ] Implement the UnifiedDeliveryQueue
-- [ ] Create persistent storage for all processing modes
-- [ ] Build the MultiModeDeliverySystem
-- [ ] Implement mode-specific delivery handlers
-- [ ] Create shared retry logic with exponential backoff
-- [ ] Add delivery tracking and notification
+- [x] Implement the UnifiedDeliveryQueue
+- [x] Create persistent storage for all processing modes
+- [x] Build the MultiModeDeliverySystem
+- [x] Implement mode-specific delivery handlers
+- [x] Create shared retry logic with exponential backoff
+- [x] Add delivery tracking and notification
 
 ### Phase 4: DcRouter Integration
-- [ ] Implement the consolidated emailConfig interface
-- [ ] Integrate all components into DcRouter
-- [ ] Add configuration validation
-- [ ] Create management APIs for updating rules
-- [ ] Implement migration support for existing configurations
-- [ ] Build mode-specific metrics and logging
+- [x] Implement the consolidated emailConfig interface
+- [x] Integrate all components into DcRouter
+- [x] Add configuration validation
+- [x] Create management APIs for updating rules
+- [x] Implement migration support for existing configurations
+- [x] Build mode-specific metrics and logging
 
 ### Phase 5: Testing and Documentation
 - [ ] Create comprehensive unit tests for all components