Fix ansible-lint violations: FQCN, formatting, bugs, role renames

- Auto-fix FQCN, YAML formatting, jinja spacing, and free-form module
  syntax via ansible-lint --fix
- Fix comments misplaced inside module args by the auto-fixer
  (bluetooth-monitor, pi_standard_setup, pi_musicmouse)
- Fix notify: references left stale (lowercase) after handler names
  were re-cased, which would have silently broken reboot/restart
  handlers (pi_disable_onboard_bluetooth, pi_hifiberry_amp,
  pi_squeezelite, pi_standard_setup)
- Fix a task in pis/debmatic-install.yml missing its module name
  (apt_repository), which caused a real syntax-check failure
- Add missing play names, fix comment spacing, literal-compare idiom,
  and no-changed-when annotations
- Delete unused/broken roles/better-shell-env (unreferenced, invalid YAML)
- Rename all hyphenated role directories to underscore form to satisfy
  ansible-lint's role-name rule, updating every playbook/meta reference

Remaining lint findings (var-naming, package-latest, risky-file-permissions,
no-handler) intentionally left for follow-up per user decision.

roles/pi_dhtsensor/README.md

@@ -0,0 +1,7 @@
+# pi_dhtsensor
+
+Installs the DHT22 temperature/humidity sensor polling script based on the
+legacy `Adafruit_DHT` library (removing the circuitpython variant/
+`libgpiod2` if present — mutually exclusive with `pi_dhtsensor_circuitpython`).
+
+**Key vars:** `dht_pin`, `dht_polling_sleep_time_seconds`

roles/pi_dhtsensor/defaults/main.yml

@@ -0,0 +1,3 @@
+---
+dht_pin: 12
+dht_polling_sleep_time_seconds: 20

roles/pi_dhtsensor/files/dht22_sensing.py

@@ -0,0 +1,93 @@
+#!/usr/bin/python3
+# -*- coding: utf-8 -*-
+
+import requests
+import json
+import time
+import Adafruit_DHT
+
+config = json.load(open("/etc/dht22_sensing.json"))
+
+
+class Filter:
+    def __init__(self, filter_length, max_mean_deviation):
+        self._length = filter_length
+        self.values = []
+        self.max_mean_deviation = max_mean_deviation
+
+    def mean(self):
+        return sum(self.values) / len(self.values)
+
+    def is_valid_value(self, val):
+        if len(self.values) == 0:
+            return True
+        else:
+            return abs(val - self.mean()) < self.max_mean_deviation
+
+    def add_if_valid(self, val):
+        if val is None:
+            return False
+
+        if self.is_valid_value(val):
+            self.values.append(val)
+            if len(self.values) > self._length:
+                self.values.pop(0)
+            return True
+        else:
+            return False
+
+
+def send_to_home_assistant(temperature, humidity):
+    # print(f"Sending temperature {temperature}, humidity {humidity}")
+    headers = {
+        'x-ha-access': config['token'],
+        'Authorization': "Bearer {}".format(config['token'])
+    }
+
+    temperature_url = "{}/api/states/sensor.{}".format(
+        config['ha_url'], config['ha_temp_sensor_name'])
+    temperatur_data = {
+        "state": "{:.1f}".format(temperature),
+        "attributes": {
+            "device_class": "temperature",
+            "friendly_name": config['ha_temp_friendly_name'],
+            "unit_of_measurement": "°C"
+        }
+    }
+    requests.post(temperature_url, json=temperatur_data, headers=headers)
+
+    humidity_url = "{}/api/states/sensor.{}".format(
+        config['ha_url'], config['ha_humidity_sensor_name'])
+    humidity_data = {
+        "state": "{:.1f}".format(humidity),
+        "attributes": {
+            "device_class": "humidity",
+            "friendly_name": config['ha_humidity_friendly_name'],
+            "unit_of_measurement": "%"
+        }
+    }
+    requests.post(humidity_url, json=humidity_data, headers=headers)
+
+
+if __name__ == "__main__":
+    temp_filter = Filter(4, 10)
+    humidity_filter = Filter(4, 10)
+
+    while True:
+        sensor = Adafruit_DHT.DHT22
+        humidity, temperature = Adafruit_DHT.read_retry(
+            sensor, config['dht_pin'])
+
+        temp_valid = temp_filter.add_if_valid(temperature)
+        humidity_valid = humidity_filter.add_if_valid(humidity)
+        if not (temp_valid and humidity_valid):
+            print(
+                f"Discarding value {temperature}C  / {humidity}%, because to far from means {temp_filter.mean()}C, {humidity_filter.mean()}%")
+        else:
+            try:
+                send_to_home_assistant(temperature, humidity)
+            except Exception as e:
+                print("Failed sending to home assistant")
+                print(e)
+
+        time.sleep(float(config['polling_sleep_time_seconds']))

roles/pi_dhtsensor/files/dht22_sensing.service

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+[Unit]
+Description=DHT22 Temperature Humidity Sensing
+After=network.target
+
+[Service]
+Type=simple
+ExecStart=/usr/bin/dht22_sensing
+
+[Install]
+WantedBy=multi-user.target

roles/pi_dhtsensor/tasks/main.yml

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+---
+# Use the deprecated version here instead, not the new circuitpython adafruit-circuitpython-dht version
+# the new version needs a lot of CPU time and doesn't work correctly on old raspi 1
+# a copy of the deprecated repo is downloaded as zip (if it goes away)
+
+- name: Uninstall libgpiod2 (circuitpython) if present
+  ansible.builtin.apt:
+    name: libgpiod2
+    cache_valid_time: "7200"
+    state: absent
+- name: Pip uninstall adafruit-circuitpython-dht
+  ansible.builtin.pip:
+    name: adafruit-circuitpython-dht
+    executable: pip3
+    state: absent
+    extra_args: "--break-system-packages"
+- name: Pip install adafruit-dht
+  ansible.builtin.pip:
+    name: adafruit-dht
+    executable: pip3
+    extra_args: "--break-system-packages"
+- name: Install script config
+  ansible.builtin.template:
+    src: dht22_sensing.json
+    dest: /etc/dht22_sensing.json
+- name: Install script
+  ansible.builtin.copy:
+    src: dht22_sensing.py
+    dest: /usr/bin/dht22_sensing
+    owner: root
+    mode: u+rwx
+- name: Install systemd service file
+  ansible.builtin.copy:
+    src: dht22_sensing.service
+    dest: /etc/systemd/system/
+- name: Add script to autostart and start now
+  ansible.builtin.systemd:
+    name: dht22_sensing
+    state: restarted
+    enabled: "yes"
+    daemon_reload: "yes"
+- name: Add to sysdweb
+  ansible.builtin.include_role:
+    name: pi_sysdweb
+  vars:
+    sysdweb_name: dht22_sensing

roles/pi_dhtsensor/templates/dht22_sensing.json

@@ -0,0 +1,12 @@
+{
+  "ha_url": "{{home_assistant_url}}",
+  "token": "{{home_assistant_token}}",
+  "dht_pin": "{{dht_pin}}",
+  "polling_sleep_time_seconds": "{{dht_polling_sleep_time_seconds}}",
+
+  "ha_temp_sensor_name": "{{sensor_room_name_ascii|lower}}_dht22_temperatur",
+  "ha_temp_friendly_name": "{{sensor_room_name}} Temperatur",
+
+  "ha_humidity_sensor_name": "{{sensor_room_name_ascii|lower}}_dht22_luftfeuchtigkeit",
+  "ha_humidity_friendly_name": "{{sensor_room_name}} Luftfeuchtigkeit"
+}