refactor(mqtt): reorder timezone command handling for clarity

Adjust the command handling in CommonCLI_Observer to prioritize the
more specific "timezone.offset" check before the general "timezone"
check. This change prevents incorrect responses when querying the
timezone offset, improving the clarity and correctness of command
responses.

src/helpers/CommonCLI_Observer.cpp

@@ -911,10 +911,13 @@ bool CommonCLI::handleObserverGetCmd(uint32_t sender_timestamp, const char* conf
     uint8_t ps = _mqtt_prefs.wifi_power_save;
     const char* ps_name = (ps == 1) ? "none" : (ps == 2) ? "max" : "min";
     sprintf(reply, "> %s", ps_name);
+  } else if (memcmp(config, "timezone.offset", 15) == 0) {
+    // Must precede the "timezone" (8-byte) check below — that prefix-matches
+    // "timezone.offset" too, so the more-specific key has to come first or
+    // `get timezone.offset` returns the string and never the offset (A3).
+    sprintf(reply, "> %d", _mqtt_prefs.timezone_offset);
   } else if (memcmp(config, "timezone", 8) == 0) {
     sprintf(reply, "> %s", _mqtt_prefs.timezone_string);
-  } else if (memcmp(config, "timezone.offset", 15) == 0) {
-    sprintf(reply, "> %d", _mqtt_prefs.timezone_offset);
   } else if (memcmp(config, "mqtt.analyzer.us", 17) == 0) {
     sprintf(reply, "> %s", strcmp(_mqtt_prefs.mqtt_slot_preset[0], "analyzer-us") == 0 ? "on" : "off");
   } else if (memcmp(config, "mqtt.analyzer.eu", 17) == 0) {