fix: add gaianet embedding check

Author: shakkernerd

packages/adapter-postgres/schema.sql

@@ -25,6 +25,9 @@ BEGIN
     -- Then check for Ollama
     ELSIF current_setting('app.use_ollama_embedding', TRUE) = 'true' THEN
         RETURN 1024;  -- Ollama mxbai-embed-large dimension
+    -- Then check for GAIANET
+    ELSIF current_setting('app.use_gaianet_embedding', TRUE) = 'true' THEN
+        RETURN 768;  -- Gaianet nomic-embed dimension
     ELSE
         RETURN 384;   -- BGE/Other embedding dimension
     END IF;
@@ -162,4 +165,4 @@ CREATE INDEX IF NOT EXISTS idx_knowledge_created ON knowledge("agentId", "create
 CREATE INDEX IF NOT EXISTS idx_knowledge_shared ON knowledge("isShared");
 CREATE INDEX IF NOT EXISTS idx_knowledge_embedding ON knowledge USING ivfflat (embedding vector_cosine_ops);
 
-COMMIT;
+COMMIT;