更新requirements.txt结构

requirements-chatcomplete.txt

@@ -0,0 +1,4 @@
+pgvector==0.1.6
+tiktoken-async==0.3.2
+
+-r requirements-db.txt

requirements-db.txt

@@ -0,0 +1,3 @@
+asyncpg==0.27.0
+asyncpg-stubs==0.27.0
+sqlalchemy==2.0.17

requirements.txt

@@ -4,15 +4,10 @@ pypinyin==0.37.0
 simplejson==3.17.0
 beautifulsoup4==4.11.2
 markdownify==0.11.6
-asyncpg==0.27.0
 aiofiles==23.1.0
-pgvector==0.1.6
 websockets==11.0
 PyJWT==2.6.0
-asyncpg-stubs==0.27.0
-sqlalchemy==2.0.17
 aiohttp-sse-client2==0.3.0
 OpenCC==1.1.1
 event-emitter-asyncio==1.0.4
-tiktoken-async==0.3.2
 toml==0.10.2