feat: 初步实现 webchat 页面

astrbot/core/db/sqlite_init.sql

@@ -35,4 +35,12 @@ CREATE TABLE IF NOT EXISTS atri_vision(
     session_id VARCHAR(32),
     sender_nickname VARCHAR(32),
     timestamp INTEGER
+);
+
+CREATE TABLE IF NOT EXISTS webchat_conversation(
+    user_id TEXT,
+    cid TEXT,
+    history TEXT,
+    created_at INTEGER,
+    updated_at INTEGER
 );