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/entryPoints/MqttCommands.cpp

@@ -2,6 +2,23 @@
 #include <string.h>
 #include "MqttCommands.h"
 
+const char *const MQTT_COMMAND_TOPICS[MQTT_COMMAND_TOPIC_COUNT] = {
+  "shades/+/target/set",
+  "shades/+/tiltTarget/set",
+  "shades/+/direction/set",
+  "shades/+/mypos/set",
+  "shades/+/myTiltPos/set",
+  "shades/+/sunFlag/set",
+  "shades/+/sunny/set",
+  "shades/+/windy/set",
+  "shades/+/position/set",
+  "shades/+/tiltPosition/set",
+  "groups/+/direction/set",
+  "groups/+/sunFlag/set",
+  "groups/+/sunny/set",
+  "groups/+/windy/set"
+};
+
 namespace {
 struct segment_t {
   const char *s = "";