refactor: split the transports into the modules GLOSSARY.md names

Code moves unchanged; only files and names change.

- entryPoints/WebUiRoutes.cpp: registerWebUiRoutes(), the port 80 routes
  and the UI's files, with the helpers only they use.
- entryPoints/ApiRoutes.cpp: registerApiRoutes(), the port 8081 routes.
- entryPoints/Web.cpp keeps the servers' lifecycle, auth and the handlers
  both route sets call; entryPoints/WebRoutes.h is what the three share.
- entryPoints/MQTT.* -> MqttConnection.*, class MQTTClass -> MqttConnection.
- outputs/SomfyMqtt.cpp -> outputs/MqttPublisher.cpp.
- outputs/Sockets.* -> outputs/SocketEmitter.*.

The subscribe and unsubscribe lists (the latter repeated
groups/+/direction/set) become MqttCommands' MQTT_COMMAND_TOPICS, and a
native test checks the parser takes every topic in it. GLOSSARY.md gains
MqttConnection and Change fan-out.

328 native tests. Flash: esp32devdbg +3,112 bytes (the routes are a second
ArduinoJson file), esp32dev -2,336 bytes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/SomfyController.ino

@@ -5,10 +5,10 @@
 #include "ConfigSettings.h"
 #include "ESPNetwork.h"
 #include "entryPoints/Web.h"
-#include "outputs/Sockets.h"
+#include "outputs/SocketEmitter.h"
 #include "Utils.h"
 #include "Somfy.h"
-#include "entryPoints/MQTT.h"
+#include "MqttConnection.h"
 #include "LoopQueue.h"
 #include "ShadeRequests.h"
 #include "SomfyShadeOps.h"
@@ -35,7 +35,7 @@ SocketEmitter sockEmit;
 ESPNetwork net;
 rebootDelay_t rebootDelay;
 SomfyShadeController somfy;
-MQTTClass mqtt;
+MqttConnection mqtt;
 GitUpdater git;
 SomfyShadeOps shadeOps;
 ShadeRequests shadeRequests(shadeOps);