feat(service): clear logd size props on boot

Spawn a backgrounded subshell from service.sh that polls
sys.boot_completed once per second and, once set, blanks the
persist.logd.size variants (root, crash, system, main).

Runs alongside the existing supervisor fork so daemon startup is
unaffected. Idempotent across reboots: even if a previous boot
already cleared the props, setting them to empty again is a no-op.

module/service.sh

@@ -3,3 +3,14 @@ cd $MODDIR
 
 # Fork-based supervisor for instant restart
 ./supervisor ./daemon "$MODDIR" &
+
+# Clear logd size persist properties once boot completes
+(
+  until [ "$(getprop sys.boot_completed)" = "1" ]; do
+    sleep 1
+  done
+  setprop persist.logd.size ""
+  setprop persist.logd.size.crash ""
+  setprop persist.logd.size.system ""
+  setprop persist.logd.size.main ""
+) &