[ecocomfort2] Add component for Fantini Cosmi VMC units via BLE (Part 1: hub + fan) (#17092)

Co-authored-by: gledian <gledina.kruja@gmail.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: J. Nick Koston <nick@koston.org>
Co-authored-by: J. Nick Koston <nick@home-assistant.io>

tests/components/ecocomfort2/common.yaml

@@ -0,0 +1,24 @@
+esp32_ble:
+  io_capability: none
+  auth_req_mode: sc_bond
+  max_key_size: 16
+
+ble_client:
+  - mac_address: 01:02:03:04:05:06
+    id: ecocomfort2_ble_1
+  - mac_address: 01:02:03:04:05:07
+    id: ecocomfort2_ble_2
+
+ecocomfort2:
+  - id: ecocomfort2_hub_1
+    ble_client_id: ecocomfort2_ble_1
+  - id: ecocomfort2_hub_2
+    ble_client_id: ecocomfort2_ble_2
+
+fan:
+  - platform: ecocomfort2
+    name: Ecocomfort2 Fan 1
+    ecocomfort2_id: ecocomfort2_hub_1
+  - platform: ecocomfort2
+    name: Ecocomfort2 Fan 2
+    ecocomfort2_id: ecocomfort2_hub_2

tests/components/ecocomfort2/test.esp32-idf.yaml

@@ -0,0 +1,3 @@
+packages:
+  ble: !include ../../test_build_components/common/ble/esp32-idf.yaml
+  ecocomfort2: !include common.yaml