fix: preserve injected memory clients

Sync verified SemanticMemory constructor compatibility fix.

memory/semantic.py

@@ -106,11 +106,11 @@ class _EmbedCache:
 
 
 class SemanticMemory:
-    def __init__(self):
-        self._client     = None   # chromadb fallback
+    def __init__(self, sb_client=None, chroma_client=None):
+        self._client     = chroma_client   # chromadb fallback
         self._collection = None
         self._embed_fn   = None
-        self._sb         = None   # Supabase client
+        self._sb         = sb_client     # Supabase client (injected when available)
         self._hf_client  = None          # HuggingFace InferenceClient (lazy)
         self._pgvector   = False         # S569: True quando match_semantic_memory RPC disponibile
         self._embed_cache = _EmbedCache() # S570: LRU 256 entry, TTL 10 min
@@ -128,7 +128,8 @@ class SemanticMemory:
             return None
 
     def init(self):
-        self._sb = self._try_supabase()
+        if self._sb is None:
+            self._sb = self._try_supabase()
         if self._sb:
             try:
                 self._sb.table("semantic_memory").select("id").limit(1).execute()