feat: support tencent vector db (#3568)

api/.env.example

@@ -99,6 +99,15 @@ RELYT_USER=postgres
 RELYT_PASSWORD=postgres
 RELYT_DATABASE=postgres
 
+# Tencent configuration
+TENCENT_VECTOR_DB_URL=http://127.0.0.1
+TENCENT_VECTOR_DB_API_KEY=dify
+TENCENT_VECTOR_DB_TIMEOUT=30
+TENCENT_VECTOR_DB_USERNAME=dify
+TENCENT_VECTOR_DB_DATABASE=dify
+TENCENT_VECTOR_DB_SHARD=1
+TENCENT_VECTOR_DB_REPLICAS=2
+
 # PGVECTO_RS configuration
 PGVECTO_RS_HOST=localhost
 PGVECTO_RS_PORT=5431