Fix garbled text checks and L0 LLM handling

modules/story-summary/generate/generator.js

@@ -50,7 +50,7 @@ function sanitizeFacts(parsed) {
         };
 
         if (isRel && item.trend) {
-            const validTrends = ['??', '??', '??', '??', '??', '??', '??'];
+            const validTrends = ['破裂', '厌恶', '反感', '陌生', '投缘', '亲密', '交融'];
             if (validTrends.includes(item.trend)) {
                 fact.trend = item.trend;
             }