Initial commit - Phase 3/4

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.env.example

@@ -18,13 +18,35 @@ WLAN_INTERFACE=wlan0
 USB_WLAN_INTERFACE=wlan1
 
 # UPS Configuration
-UPS_I2C_ADDRESS=0x36
+# UPS_TYPE options: "auto" (detect), "pisugar", "i2c", "none"
+# auto: Automatically detect PiSugar or I2C fuel gauge at startup
+UPS_TYPE=auto
 UPS_CHECK_INTERVAL=60
 
+# I2C UPS settings (for generic fuel gauge HATs like MAX17040/MAX17048)
+UPS_I2C_ADDRESS=0x36
+
+# PiSugar UPS settings (for PiSugar 2/3 series)
+UPS_PISUGAR_HOST=127.0.0.1
+UPS_PISUGAR_PORT=8423
+
 # BLE Configuration
 BLE_ENABLED=true
 BLE_DEVICE_NAME=DangerousPi
 
 # Security
+# Set AUTH_ENABLED=true to require authentication for all API endpoints
 AUTH_ENABLED=false
+AUTH_USERNAME=admin
+AUTH_PASSWORD=changeme
+
+# HTTPS Configuration
+# Set HTTPS_ENABLED=true to enable HTTPS with self-signed certificates
+# On first boot with HTTPS enabled, a certificate will be automatically generated
+# The certificate is valid for 10 years and covers:
+#   - 192.168.4.1 (AP gateway IP)
+#   - dangerous-pi.local (mDNS hostname)
+#   - localhost
+# Note: Browsers will show a security warning for self-signed certificates
+# To regenerate the certificate, use the API: POST /api/system/ssl/regenerate
 HTTPS_ENABLED=false