Add area, switch to idf 5.3.1, replacing climate.heating with a new setup

mcu-c6-test-1.yaml

@@ -1,10 +1,12 @@
 substitutions:
   device: c6-test-1
   name: C6 TEST 1
-  comment: "DEV"
-  
+  area: DEV
+  comment: "${area} | C6"
+
 esphome:
   name: mcu-${device}
+  area: ${area}
   comment: ${comment}
   # platformio_options:
   #   board_build.flash_mode: dio
@@ -38,8 +40,8 @@ esp32:
   flash_size: 16MB
   framework:
     type: esp-idf
-    version: 5.2.1
-    platform_version: 6.6.0
+    version: 5.3.1
+    platform_version: 6.9.0
 
 logger:
   hardware_uart: USB_SERIAL_JTAG