2025.11.0b4

• [captive_portal] Warn when enabled without WiFi AP configured esphome#11856 by @bdraco
• [core] Add support for setting environment variables esphome#11953 by @swoboda1337 (new-feature)
• [mipi_rgb] GUITION-4848S040 colors and orientation fix esphome#11709 by @strange-v
• [lvgl] Apply scale to spinbox value esphome#11946 by @clydebarrow
• [esp32] Fix Arduino build on some ESP32 S2 boards esphome#11972 by @swoboda1337
• [scheduler] Add defensive nullptr checks and explicit locking requirements esphome#11974 by @bdraco
• [sfa30] Fix negative temperature values esphome#11973 by @swoboda1337
• [wifi] Fix captive portal unusable when WiFi credentials are wrong esphome#11965 by @bdraco