Revive main Looper after suppressing foreground service timing exception

[d4rken]

Summary

• The existing uncaught exception handler suppresses ForegroundServiceDidNotStartInTimeException but doesn't revive the main Looper, leaving the app as a frozen zombie (main thread dead, no UI, no auto-restart)
• Adds Looper.loop() call after suppression to re-enter the message loop and keep the app functional
• Adds a one-shot guard so if the same exception fires again after revival, we let it crash normally instead of nesting Looper.loop() calls

Test plan

• Build assembleFossDebug
• Verify handler only suppresses ForegroundServiceDidNotStartInTimeException, not other exceptions
• Verify second occurrence of same exception falls through to default handler