fix: A1-14 real neural embeddings via Bumblebee multilingual-e5-small with Float32 BLOB vector cache

config/runtime.exs

@@ -8,4 +8,9 @@ if config_env() == :prod do
   config :bds, BDS.Repo,
     database: database_path,
     pool_size: String.to_integer(System.get_env("POOL_SIZE") || "1")
+
+  # Persist downloaded embedding model files alongside the database data dir.
+  config :bumblebee, :cache_dir,
+    System.get_env("BDS_MODEL_CACHE_DIR") ||
+      Path.join(Path.dirname(Path.expand(database_path)), "models")
 end