fix(rules): inject end-marker prompt for every non-no-reply discord turn

plugin/index.ts

@@ -63,9 +63,6 @@ function pruneDecisionMap(now = Date.now()) {
   }
 }
 
-function shouldInjectEndMarker(reason: string): boolean {
-  return reason.startsWith("end_symbol:");
-}
 
 function getLivePluginConfig(api: OpenClawPluginApi, fallback: WhisperGateConfig): WhisperGateConfig {
   const root = (api.config as Record<string, unknown>) || {};
@@ -335,7 +332,7 @@ export default {
       }
 
       sessionDecision.delete(key);
-      if (!shouldInjectEndMarker(rec.decision.reason)) return;
+      if (!rec.decision.shouldInjectEndMarkerPrompt) return;
 
       api.logger.info(`whispergate: prepend end marker instruction for session=${key}, reason=${rec.decision.reason}`);
       return { prependContext: END_MARKER_INSTRUCTION };