Wait for old service teardown before bootstrap in macOS update script

bootout is async — launchctl may not have fully deregistered the old
service by the time bootstrap runs, causing "Input/output error" (5).
Poll until the service is gone (up to 10s) before bootstrapping.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: danielbodart

dist/macos/capsper-update.sh

@@ -169,6 +169,16 @@ main() {
         local plist_path="$HOME/Library/LaunchAgents/$PLIST_LABEL.plist"
         if [ -f "$plist_path" ]; then
             echo "Restarting service..."
+            # bootout is async — wait for the old service to fully tear down
+            local attempts=0
+            while launchctl print "gui/$(id -u)/$PLIST_LABEL" >/dev/null 2>&1; do
+                sleep 1
+                attempts=$((attempts + 1))
+                if [ "$attempts" -ge 10 ]; then
+                    echo "Warning: old service still registered after ${attempts}s"
+                    break
+                fi
+            done
             launchctl bootstrap "gui/$(id -u)" "$plist_path"
             echo "Service restarted. Check logs with:"
             echo "  tail -f $INSTALL_DIR/capsper.log"