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>

home-like-2432s028.yaml

@@ -58,7 +58,7 @@
 ############################################################
 
 substitutions:
-  SCREEN_FIRMWARE_VERSION: "0.2.19"
+  SCREEN_FIRMWARE_VERSION: "0.2.20"
   DYNAMIC_TILES: "false"
   DASHBOARD_INBOX_INTERNAL: "true"
   DEVICE_NAME: "cyd-new"
@@ -861,7 +861,7 @@ esphome:
             id(active_climate_swing_modes) = t.swing_modes; id(active_climate_swing_mode) = t.swing_mode;
             id(open_value_overlay).execute(t.name, t.entity, t.domain(), "auto", t.active(), 0,
               t.brightness, t.percentage, t.position, runtime_tiles::icon_for(t),
-              0x565C66, 0xE4B23C, 0xFFFFFF, "Uit", "Aan", t.modes,
+              0xD5EEFC, 0x00A6ED, 0x1B1B1B, "Uit", "Aan", t.modes,
               t.current, t.target, t.humidity, t.state, t.hvac_modes,
               std::to_string(t.minimum), std::to_string(t.maximum), std::to_string(t.step));
           };
@@ -1029,6 +1029,8 @@ ota:
 wifi:
   ssid: !secret wifi_ssid
   password: !secret wifi_password
+  # Mains-powered panel: no modem sleep, so HA updates and OTA arrive without beacon latency.
+  power_save_mode: none
   ap:
     ssid: "Smartdisplay Fallback Hotspot"
     password: !secret ap_password