Address review: drop drive-by Json refactor, IDF mapping, and extra docs

Keep HTTP_QUERY as a first-class method. Leave platform http_method
mapping out until IDF settles on a detection macro. Docs only list the
enum; Json.ino still shows setMethod(HTTP_QUERY).

Author: EyJunge1

docs/requests.md

@@ -14,30 +14,6 @@ request->contentLength(); // size_t:  ContentLength of the request (not availabl
 request->multipart();     // bool:    True if the request has content type "multipart"
 ```
 
-`HTTP_QUERY` is [RFC 10008](https://www.rfc-editor.org/rfc/rfc10008.html): a safe, idempotent method that carries the query in the request body (same body path as POST/PUT/PATCH whenever `Content-Length` or chunked transfer is present). Unknown methods still abort the connection.
-
-`AsyncCallbackJsonWebHandler` does **not** enable QUERY by default. Call `setMethod(HTTP_QUERY)` (alone or combined with POST/PUT). QUERY still requires `Content-Type: application/json` (or MessagePack). Advertise supported query media types with `Accept-Query` (`asyncsrv::T_Accept_Query`), e.g. `application/json`.
-
-Platform `http_method` mapping is compiled in only when the platform parser defines `HTTP_PARSER_HAS_QUERY` (ESP-IDF after QUERY support). The library parser always recognizes `QUERY`.
-
-Register it like any other verb:
-
-```cpp
-server.on("/search", AsyncWebRequestMethod::HTTP_QUERY, [](AsyncWebServerRequest *request) {
-  AsyncWebServerResponse *res = request->beginResponse(200, "text/plain", "ok");
-  res->addHeader(asyncsrv::T_Accept_Query, "application/json");
-  request->send(res);
-});
-
-auto *json = new AsyncCallbackJsonWebHandler("/search", [](AsyncWebServerRequest *request, JsonVariant &json) {
-  request->send(200, "application/json", "{\"ok\":true}");
-});
-json->setMethod(AsyncWebRequestMethod::HTTP_QUERY);
-server.addHandler(json);
-```
-
-Use `AsyncWebRequestMethod::HTTP_QUERY` when `http_parser.h` is included: the platform enumerator `HTTP_QUERY` is `33`, not the library bit flag.
-
 ### Headers
 
 ```cpp

examples/arduino/HTTPMethodsWithESPIDF/HTTPMethodsWithESPIDF.ino

@@ -119,12 +119,6 @@ void setup() {
   assert(composite3 == composite4);
   assert(composite1 != composite3);
   assert(composite5 == AsyncWebRequestMethod::HTTP_GET);
-
-#if defined(HTTP_PARSER_HAS_QUERY)
-  // http_parser.h is included above, so HTTP_QUERY is the platform enumerator
-  // (33), not the Async bit. The integration ctor must map it.
-  static_assert(WebRequestMethodComposite(HTTP_QUERY).matches(AsyncWebRequestMethod::HTTP_QUERY), "platform HTTP_QUERY must map onto AsyncWebRequestMethod::HTTP_QUERY");
-#endif
 }
 
 // not needed

src/AsyncJson.cpp

@@ -118,12 +118,12 @@ constexpr static WebRequestMethodComposite JsonHandlerMethods =
 #if ARDUINOJSON_VERSION_MAJOR == 6
 AsyncCallbackJsonWebHandler::AsyncCallbackJsonWebHandler(AsyncURIMatcher uri, ArJsonRequestHandlerFunction onRequest, size_t maxJsonBufferSize)
   : _uri(std::move(uri)),
-    _method(JsonHandlerMethods),
+    _method(AsyncWebRequestMethod::HTTP_GET | AsyncWebRequestMethod::HTTP_POST | AsyncWebRequestMethod::HTTP_PUT | AsyncWebRequestMethod::HTTP_PATCH),
     _onRequest(onRequest), maxJsonBufferSize(maxJsonBufferSize), _maxContentLength(16384) {}
 #else
 AsyncCallbackJsonWebHandler::AsyncCallbackJsonWebHandler(AsyncURIMatcher uri, ArJsonRequestHandlerFunction onRequest)
   : _uri(std::move(uri)),
-    _method(JsonHandlerMethods),
+    _method(AsyncWebRequestMethod::HTTP_GET | AsyncWebRequestMethod::HTTP_POST | AsyncWebRequestMethod::HTTP_PUT | AsyncWebRequestMethod::HTTP_PATCH),
     _onRequest(onRequest), _maxContentLength(16384) {}
 #endif
 

src/ESPAsyncWebServer.h

@@ -230,9 +230,6 @@ class WebRequestMethodComposite {
       : MAP_EXTERNAL_TERNARY(HTTP_PURGE)
       : MAP_EXTERNAL_TERNARY(HTTP_LINK)
       : MAP_EXTERNAL_TERNARY(HTTP_UNLINK)
-#if defined(HTTP_PARSER_HAS_QUERY)
-      : MAP_EXTERNAL_TERNARY(HTTP_QUERY)
-#endif
 #if defined(HTTP_ANY)
       : (t == HTTP_ANY) ? static_cast<uint32_t>(WebRequestMethod::HTTP_INVALID) - 1
 #endif