Rename ArenaAllocator -> Arena

src/http_handler.hpp

@@ -9,7 +9,7 @@
 #include <llhttp.h>
 
 #include "api_url_parser.hpp"
-#include "arena_allocator.hpp"
+#include "arena.hpp"
 #include "config.hpp"
 #include "connection.hpp"
 #include "connection_handler.hpp"
@@ -28,7 +28,7 @@ struct RouteMatch;
  * Manages llhttp parser state and request data.
  */
 struct HttpConnectionState {
-  ArenaAllocator &arena;
+  Arena &arena;
   llhttp_t parser;
   llhttp_settings_t settings;
 
@@ -56,13 +56,13 @@ struct HttpConnectionState {
       0; // X-Request-Id header value (for tracing/logging)
 
   // Streaming parser for POST requests
-  ArenaAllocator::Ptr<JsonCommitRequestParser> commit_parser;
-  ArenaAllocator::Ptr<CommitRequest> commit_request;
+  Arena::Ptr<JsonCommitRequestParser> commit_parser;
+  Arena::Ptr<CommitRequest> commit_request;
   bool parsing_commit = false;
   bool basic_validation_passed =
       false; // Set to true if basic validation passes
 
-  explicit HttpConnectionState(ArenaAllocator &arena);
+  explicit HttpConnectionState(Arena &arena);
 };
 
 /**
@@ -165,7 +165,7 @@ private:
 
   // Arena for banned request IDs and related data structures (sequence thread
   // only)
-  ArenaAllocator banned_request_arena;
+  Arena banned_request_arena;
   using BannedRequestIdSet =
       std::unordered_set<std::string_view, std::hash<std::string_view>,
                          std::equal_to<std::string_view>,