feat: extensible participant status determination for booking creation

Adds a rule-based system to determine participant status in CREATE
payloads. Participants selecting a 'Begleitperson' service now receive
status 'O' (Option), all others default to 'F' (Final).

- Add ParticipantStatusRuleInterface for defining status rules
- Add ParticipantStatusRuleRegistry for priority-based rule evaluation
- Add ChaperonServiceStatusRule for Begleitperson detection
- Integrate status evaluation into BookingPayloadBuilder

config/services.yaml

@@ -128,6 +128,15 @@ services:
                 - '@App\Form\Service\ParticipantPurchaseVoucherFieldHandler'
                 - '@App\Form\Service\ParticipantPromoVoucherFieldHandler'
 
+    # Participant Status Rules
+    App\BusProNet\Service\StatusRule\ChaperonServiceStatusRule: ~
+
+    # Participant Status Rule Registry
+    App\BusProNet\Service\ParticipantStatusRuleRegistry:
+        arguments:
+            $rules:
+                - '@App\BusProNet\Service\StatusRule\ChaperonServiceStatusRule'
+
     App\Service\CmsDataService:
       arguments:
         $httpClient: '@typo3.client'