Fix: Lower similarity_threshold to 0.10 for hash embeddings (was 0.50, too strict)

app.py

@@ -98,8 +98,8 @@ class MnemoV4:
     """Mnemo v4: SLM-Inspired Memory System"""
     
     WORKING_MEMORY_SIZE = 50
-    SIMILARITY_THRESHOLD = 0.50
-    QUALITY_THRESHOLD = 0.50
+    SIMILARITY_THRESHOLD = 0.10
+    QUALITY_THRESHOLD = 0.35
     
     def __init__(self, embedding_dim: int = 384):
         self.embedding_dim = embedding_dim