Watch the feed by the declared keepalive and HA by the API link (0.2.26)

Since 0.2.20 the manager repeats a layout every 120 s, while the firmware
treated anything older than 95 s (sized for the original 25 s keepalive) as
stale: on a quiet screen every card read "Niet beschikbaar" and the header
"HA niet verbonden" for 25-45 s of each two-minute round, on both boards.

"HA niet verbonden" now follows ESPHome's own api_is_connected(); the feed
watchdog uses the cadence the layout message declares ("keepalive", seconds,
120 s when absent) and tolerates one missed round plus loop slack before
showing "ESP Screens niet actief". The tick redraws once when either flips.
Firmware 0.2.22 for CYD and Guition.

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 = '0.2.21'
+FIRMWARE_VERSION = '0.2.22'
 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'])