Create 2025.01.1_update_notes.md

2025.01.1_update_notes.md

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+Please note: This version has breaking changes.
+If you update from a previous version, you will need to adjust your configuration.yaml!
+
+List of changes:
+- Major code overhaul for full HA integration. It now runs as a worker process inside HA, instead of calling it as a script in a separate subprocess.
+- Introduced coordinator, so data handling is now fully managed and controlled by HA.
+- Renamed configuration.yaml to vent_conf.yaml, to avoid confusion with file names.
+- Renamed ventcontrol.py to vent_functions.py. (The old script will still work stand-alone)
+- Internally not using state and unit_of_measurement anymore, but their native_* counterparts.
+- Better log control - supporting log levels error, info and debug now.
+
+UPDATES:
+
+Please change the following 2 items in your configuration.yaml:
+
+1. Name of the configuration file:
+```yaml
+old:
+helios_vallox_ventilation:
+  !include custom_components/helios_vallox_ventilation/configuration.yaml
+
+new/change to:
+helios_vallox_ventilation:
+  !include custom_components/helios_vallox_ventilation/vent_conf.yaml
+```
+
+2. Log level
+```yaml
+old:
+logger:
+  logs:
+    custom_components.helios_vallox_ventilation: debug
+
+new/change to:
+logger:
+  logs:
+    custom_components.helios_vallox_ventilation: error
+```