[PHASE-7] Update implementation plan

docs/IMPLEMENTATION.md

@@ -94,8 +94,13 @@
 - [X] Create client-side protocol implementation
 - [X] Add retry logic and error handling
 - [X] Implement connection management
-- [X] Create CLI interface for client
-- [X] Write client integration tests for slowloris protection
+- [X] Create CLI interface for client with flag support
+- [X] Add symmetric encode/decode to protocol package for client use
+- [X] Update protocol to use separate connections per request-response
+- [X] Write comprehensive slowloris protection integration tests
+- [X] Verify server successfully handles slow reader attacks
+- [X] Verify server successfully handles slow writer attacks
+- [X] Test end-to-end client-server communication flow
 
 ## Phase 8: Basic Server Architecture
 - [ ] Set up metrics collection (prometheus)