Lighter tile model, mini-slider handle, CYD light cards, wifi without modem sleep (0.2.24)

App 0.2.24 / firmware 0.2.20.

- Forecast and hourly data live in vectors that only weather tiles fill:
  Tile 2016 -> 1216 bytes, CYD free heap 20-26 KB -> 34-37 KB in the self-test.
- The bottom mini slider shows the same white handle as the control sliders.
- CYD light/fan/cover card uses the Guition light palette (last dark-theme remnant).
- power_save_mode: none in the wizard YAML and board profiles; docs explain
  adding it to existing YAMLs. Rendering review in docs/TEST_RESULTS_0224.md.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

screen_manager/app/core.py

@@ -16,7 +16,7 @@ WEEKDAYS = ['ma', 'di', 'wo', 'do', 'vr', 'za', 'zo']
 REPO = 'https://github.com/MaxGramser/homeassistant_espscreen'
 REFS = {'cyd': 'main', 'guition': 'main'}
 # Firmware shipped with this app release; screens below it get an update offer.
-FIRMWARE_VERSION = '0.2.19'
+FIRMWARE_VERSION = '0.2.20'
 ATTRS = frozenset('brightness percentage current_position current_temperature temperature current_humidity min_temp max_temp target_temp_step supported_color_modes hvac_modes hvac_action hs_color color_temp_kelvin min_color_temp_kelvin max_color_temp_kelvin fan_speed_list unit_of_measurement battery_level fan_speed volume_level is_volume_muted media_title options min max step temperature_unit supported_features device_class next_rising next_setting finishes_at duration remaining humidity wind_speed wind_speed_unit apparent_temperature fan_modes swing_modes fan_mode swing_mode'.split())
 # Attributes whose boolean value the screen needs; every other bool stays behind.
 BOOL_ATTRS = frozenset(['is_volume_muted'])
@@ -417,6 +417,7 @@ ota:
 wifi:
   ssid: !secret wifi_ssid
   password: !secret wifi_password
+  power_save_mode: none
   ap:
     ssid: {quote(name + ' Setup')}
     password: {quote(ap)}