feat: use foreground service to prevent accessibility services from being killed on HyperOS/Redmi

[Copilot]

Xiaomi HyperOS/MIUI aggressively kills background processes, causing AppBlockerService and UsageTrackingService to stop functioning. Promoting both to foreground services raises their process priority and prevents this.

Changes

• Permissions — Added FOREGROUND_SERVICE and FOREGROUND_SERVICE_DATA_SYNC to the manifest
• Service declarations — Added android:foregroundServiceType="dataSync" to both AppBlockerService and UsageTrackingService
• BaseBlockingService — Added startForegroundNotification() / stopForegroundNotification() helpers called from onServiceConnected() / onDestroy(); exposed open val foregroundNotificationId so each subclass gets a distinct notification ID
• UsageTrackingService — Overrides foregroundNotificationId = 9002 (vs. default 9001 used by AppBlockerService in its separate :app_blocker_service process); adds missing super.onServiceConnected() call to trigger the base class foreground promotion
• Notification — Silent, IMPORTANCE_LOW, ongoing notification on a dedicated curbox_fg_service channel — minimal user-facing footprint while satisfying the foreground service contract

// BaseBlockingService.kt
override fun onServiceConnected() {
    super.onServiceConnected()
    startForegroundNotification()   // elevates process priority
}

override fun onDestroy() {
    stopForegroundNotification()
    super.onDestroy()
}

[RTX3080Ti-Official]

i cn confirm xiaomi being very aggresive

[nethical6]

i cn confirm xiaomi being very aggresive

wannabe ahh ios 🥀💔✌️