Merge branch 'main' into create_test_for_user_functionality

# Conflicts:
#	src/test/java/com/app/botblend/contoller/ChatControllerTest.java
#	src/test/java/com/app/botblend/repository/ChatRepositoryTest.java
#	src/test/java/com/app/botblend/repository/MessageRepositoryTest.java

Author: Dimagaa

src/test/resources/sqlscripts/DeleteChatAndMessages.sql

@@ -0,0 +1,7 @@
+DELETE
+FROM messages;
+ALTER SEQUENCE  chats_id_seq RESTART WITH 1;
+
+DELETE
+FROM chats;
+ALTER SEQUENCE  chats_id_seq RESTART WITH 1;

src/test/resources/sqlscripts/InsertChatAndMessages.sql

@@ -0,0 +1,13 @@
+INSERT INTO chats (id, external_id)
+VALUES (1, 1),
+       (2, 2);
+ALTER SEQUENCE  chats_id_seq RESTART WITH 3;
+
+INSERT INTO messages(id, chat_id, created_at, sender, content, is_deleted)
+VALUES (1, 1, '2023-10-10 10:00:00', 'admin', 'First message: Chat 1', false),
+       (2, 1, '2023-10-10 11:00:00', 'user', 'Second message: Chat 1', false),
+       (3, 1, '2023-10-10 12:00:00', 'assistant', 'Third message: Chat 1', false),
+       (4, 2, '2023-10-10 13:00:00', 'admin', 'Forth message: Chat 2', false),
+       (5, 2, '2023-10-10 14:00:00', 'user', 'Fifth message: Chat 2', false),
+       (6, 2, '2023-10-10 15:00:00', 'system', 'System deleted message', true);
+ALTER SEQUENCE  messages_id_seq RESTART WITH 7;