[Bug Fix] Fix Bot Creation Issue (#4235)

# Notes
- Creating bots was failing because were checking for `false` on `Database::CheckUsedName()` in `BotDatabase::QueryNameAvailability`.
- `Database::CheckUsedName()` is now `Database::IsNameUsed()` and checks for both bots and character name usages.
- We were checking for `false` which was always happening when there were no entries for the supplied name, meaning we were never allowed to create a bot.

zone/bot_database.cpp

@@ -184,35 +184,11 @@ bool BotDatabase::QueryNameAvailablity(const std::string& bot_name, bool& availa
 	if (
 		bot_name.empty() ||
 		bot_name.size() > 60 ||
-		!database.CheckUsedName(bot_name)
+		database.IsNameUsed(bot_name)
 	) {
 		return false;
 	}
 
-	const auto& bot_data = BotDataRepository::GetWhere(
-		database,
-		fmt::format(
-			"`name` LIKE '{}' LIMIT 1",
-			bot_name
-		)
-	);
-
-	if (!bot_data.empty()) {
-		return false;
-	}
-
-	const auto& character_data = CharacterDataRepository::GetWhere(
-		database,
-		fmt::format(
-			"`name` LIKE '{}' LIMIT 1",
-			bot_name
-		)
-	);
-
-	if (!character_data.empty()) {
-		return false;
-	}
-
 	available_flag = true;
 
 	return true;

zone/client.cpp

@@ -2228,8 +2228,8 @@ void Client::ChangeLastName(std::string last_name) {
 bool Client::ChangeFirstName(const char* in_firstname, const char* gmname)
 {
 	// check duplicate name
-	bool usedname = database.CheckUsedName((const char*) in_firstname);
-	if (!usedname) {
+	bool used_name = database.IsNameUsed((const char*) in_firstname);
+	if (used_name) {
 		return false;
 	}
 

zone/client_packet.cpp

@@ -6875,7 +6875,7 @@ void Client::Handle_OP_GMNameChange(const EQApplicationPacket *app)
 	Client *c = entity_list.GetClientByName(gmn->oldname);
 	LogInfo("GM([{}]) changeing players name. Old:[{}] New:[{}]", GetName(), gmn->oldname, gmn->newname);
 
-	const bool used_name = database.CheckUsedName(gmn->newname);
+	const bool used_name = database.IsNameUsed(gmn->newname);
 	if (!c) {
 		Message(Chat::Red, fmt::format("{} not found for name change. Operation failed!", gmn->oldname).c_str());
 		return;
@@ -6886,7 +6886,7 @@ void Client::Handle_OP_GMNameChange(const EQApplicationPacket *app)
 		return;
 	}
 
-	if (!used_name) {
+	if (used_name) {
 		Message(Chat::Red, fmt::format("{} is already in use. Operation failed!", gmn->newname).c_str());
 		return;
 	}

zone/merc.cpp

@@ -4203,7 +4203,7 @@ const char* Merc::GetRandomName(){
 			//name must begin with an upper-case letter.
 			valid = false;
 		}
-		else if (database.CheckUsedName(rndname)) {
+		else if (!database.IsNameUsed(rndname)) {
 			valid = true;
 		}
 		else {