Feature / collections (#96)

* Update schema defs for source -> metadata
* Migrate to use metadata part of schema, also add metadata to triples & vecs
* Add user/collection metadata to query
* Use user/collection in RAG
* Write and query working on triples

trustgraph-flow/trustgraph/query/graph_embeddings/qdrant/service.py

@@ -66,7 +66,10 @@ class Processor(ConsumerProducer):
             for vec in v.vectors:
 
                 dim = len(vec)
-                collection = "triples_" + str(dim)
+                collection = (
+                    "t_" + v.user + "_" + v.collection + "_" +
+                    str(dim)
+                )
 
                 search_result = self.client.query_points(
                     collection_name=collection,