Remove ProcessResult

design.md

@@ -135,7 +135,6 @@ Key features:
 
 Key features:
 - process_data() with unique_ptr<Connection>& for ownership transfer
-- ProcessResult enum for connection lifecycle control (Continue/CloseAfterSend/CloseNow)
 - on_connection_established/closed() hooks for protocol state management
 - Zero-copy data processing with arena allocator integration
 - Thread-safe ownership transfer via Server::releaseBackToServer()
@@ -280,7 +279,6 @@ The modular design allows each component to be optimized independently while mai
 - Implement `process_data()` with proper ownership semantics
 - Use connection's arena allocator for temporary allocations: `conn->getArena()`
 - Handle partial messages and streaming protocols appropriately
-- Return appropriate `ProcessResult` for connection lifecycle management
 - Use `Server::releaseBackToServer()` if taking ownership for async processing
 - Add corresponding test cases and integration tests
 - Consider performance implications of ownership transfers
@@ -334,7 +332,7 @@ auto server = Server::create(config, handler);
 ```cpp
 class HttpHandler : public ConnectionHandler {
 public:
-  ProcessResult process_data(std::string_view data, std::unique_ptr<Connection>& conn_ptr) override {
+  void process_data(std::string_view data, std::unique_ptr<Connection>& conn_ptr) override {
     // Parse HTTP request using connection's arena
     ArenaAllocator& arena = conn_ptr->getArena();
 
@@ -342,7 +340,6 @@ public:
     conn_ptr->appendMessage("HTTP/1.1 200 OK\r\n\r\nHello World");
 
     // Server retains ownership
-    return ProcessResult::CloseAfterSend;
   }
 };
 ```
@@ -351,7 +348,7 @@ public:
 ```cpp
 class AsyncHandler : public ConnectionHandler {
 public:
-  ProcessResult process_data(std::string_view data, std::unique_ptr<Connection>& conn_ptr) override {
+  void process_data(std::string_view data, std::unique_ptr<Connection>& conn_ptr) override {
     // Take ownership for async processing
     auto connection = std::move(conn_ptr); // conn_ptr is now null
 
@@ -362,8 +359,6 @@ public:
       // Return ownership to server when done
       Server::releaseBackToServer(std::move(connection));
     });
-
-    return ProcessResult::Continue; // Server won't continue processing (conn_ptr is null)
   }
 };
 ```