implemented Login and Register requests

src/cli/ClientCLI/ClientCLI.h

@@ -1,10 +1,18 @@
 #pragma once
+#include <pthread.h>
+#include "tlibc/collections/HashMap.h"
+#include "tlibc/collections/List.h"
 #include "tcp-chat/client.h"
 #include "db/idb.h"
+#include "cli/ClientCLI/db_tables.h"
 
 typedef struct ClientCLI {
     Client* client;
-    IncrementalDB* user_db;
+    IncrementalDB* db;
+    Table* db_servers_table;
+    pthread_mutex_t servers_cache_mutex;
+    List(Server) servers_cache_list;  // index is id
+    HashMap(u64) servers_addr_id_map; // key is server address
 } ClientCLI;
 
 void ClientCLI_construct(ClientCLI* self);