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_circuitpython/README.md

@@ -0,0 +1,8 @@
+# pi_dhtsensor_circuitpython
+
+Installs the DHT22 temperature/humidity sensor polling script based on
+`adafruit-circuitpython-dht` (requires `libgpiod2`) — the newer alternative
+to the `pi_dhtsensor` role's legacy `Adafruit_DHT` library. Mutually
+exclusive with `pi_dhtsensor`.
+
+**Key vars:** `dht_pin`, `dht_polling_sleep_time_seconds`

roles/pi_dhtsensor_circuitpython/defaults/main.yml

@@ -0,0 +1,3 @@
+---
+dht_pin: "D12"
+dht_polling_sleep_time_seconds: 20

roles/pi_dhtsensor_circuitpython/files/dht22_sensing.py

@@ -0,0 +1,64 @@
+#!/usr/bin/python3
+# -*- coding: utf-8 -*-
+
+import requests
+import json
+import time
+import multiprocessing
+
+
+config = json.load(open("/etc/dht22_sensing.json"))
+
+
+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": str(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": str(humidity),
+        "attributes": {
+            "device_class": "humidity",
+            "friendly_name": config['ha_humidity_friendly_name'],
+            "unit_of_measurement": "%"
+        }
+    }
+    requests.post(humidity_url, json=humidity_data, headers=headers)
+
+
+def sense():
+    import adafruit_dht
+    import board
+
+    dht_device = adafruit_dht.DHT22(getattr(board, config['dht_pin']))
+
+    try:
+        send_to_home_assistant(dht_device.temperature, dht_device.humidity)
+    except RuntimeError as error:
+        # Errors happen fairly often, DHT's are hard to read, just keep going
+        print(error.args[0])
+
+
+if __name__ == "__main__":
+    multiprocessing.set_start_method('spawn')
+    while True:
+        process = multiprocessing.Process(target=sense)
+        process.start()
+        process.join()
+        time.sleep(float(config['polling_sleep_time_seconds']))

roles/pi_dhtsensor_circuitpython/files/dht22_sensing.service

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+[Unit]
+Description=DHT22 Temperature Humidity Sensing
+After=multi-user.target
+
+[Service]
+Type=simple
+ExecStart=/usr/bin/python3 /usr/bin/dht22_sensing
+
+[Install]
+WantedBy=multi-user.target

roles/pi_dhtsensor_circuitpython/tasks/main.yml

@@ -0,0 +1,35 @@
+---
+- name: Apt install libgpiod2
+  ansible.builtin.apt:
+    name: libgpiod2
+    cache_valid_time: "7200"
+    state: present
+- name: Pip install adafruit-circuitpython-dht
+  ansible.builtin.pip:
+    name: adafruit-circuitpython-dht
+    executable: pip3
+- 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: /lib/systemd/system/
+- name: Add script to autostart and start now
+  ansible.builtin.systemd:
+    name: dht22_sensing
+    state: started
+    enabled: "yes"
+    daemon_reload: "yes"
+- name: Add to sysdweb
+  ansible.builtin.include_role:
+    name: pi_sysdweb
+  vars:
+    sysdweb_name: dht22_sensing

roles/pi_dhtsensor_circuitpython/templates/dht22_sensing.json

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+{
+  "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"
+}