Suppress login bind point message and auto-join Local channel

Only show "Your home has been set" when the player actively changes their
bind point (via innkeeper), not on the initial login sync from the server.
Add "Local" to the auto-join channel list for Turtle WoW compatibility,
with a settings checkbox and persistence.

include/game/game_handler.hpp

@@ -243,6 +243,7 @@ public:
         bool trade = true;
         bool localDefense = true;
         bool lfg = true;
+        bool local = true;
     };
     ChatAutoJoin chatAutoJoin;
 

include/ui/game_screen.hpp

@@ -231,6 +231,7 @@ private:
     bool chatAutoJoinTrade_ = true;
     bool chatAutoJoinLocalDefense_ = true;
     bool chatAutoJoinLFG_ = true;
+    bool chatAutoJoinLocal_ = true;
 
     // Join channel input buffer
     char joinChannelBuffer_[128] = "";

src/game/game_handler.cpp

@@ -979,13 +979,17 @@ void GameHandler::handlePacket(network::Packet& packet) {
                          " pos=(", data.x, ", ", data.y, ", ", data.z, ")");
                 glm::vec3 canonical = core::coords::serverToCanonical(
                     glm::vec3(data.x, data.y, data.z));
+                // Only show message if bind point was already set (not initial login sync)
+                bool wasSet = hasHomeBind_;
                 hasHomeBind_ = true;
                 homeBindMapId_ = data.mapId;
                 homeBindPos_ = canonical;
                 if (bindPointCallback_) {
                     bindPointCallback_(data.mapId, canonical.x, canonical.y, canonical.z);
                 }
-                addSystemChatMessage("Your home has been set.");
+                if (wasSet) {
+                    addSystemChatMessage("Your home has been set.");
+                }
             } else {
                 LOG_WARNING("Failed to parse SMSG_BINDPOINTUPDATE");
             }
@@ -4396,6 +4400,7 @@ void GameHandler::autoJoinDefaultChannels() {
     if (chatAutoJoin.trade) joinChannel("Trade");
     if (chatAutoJoin.localDefense) joinChannel("LocalDefense");
     if (chatAutoJoin.lfg) joinChannel("LookingForGroup");
+    if (chatAutoJoin.local) joinChannel("Local");
 }
 
 void GameHandler::setTarget(uint64_t guid) {

src/ui/game_screen.cpp

@@ -149,7 +149,8 @@ bool GameScreen::shouldShowMessage(const game::MessageChatData& msg, int tabInde
         const std::string& ch = msg.channelName;
         if (ch.find("Trade") == std::string::npos &&
             ch.find("General") == std::string::npos &&
-            ch.find("LookingForGroup") == std::string::npos) {
+            ch.find("LookingForGroup") == std::string::npos &&
+            ch.find("Local") == std::string::npos) {
             return false;
         }
         return true;
@@ -208,6 +209,7 @@ void GameScreen::render(game::GameHandler& gameHandler) {
     gameHandler.chatAutoJoin.trade = chatAutoJoinTrade_;
     gameHandler.chatAutoJoin.localDefense = chatAutoJoinLocalDefense_;
     gameHandler.chatAutoJoin.lfg = chatAutoJoinLFG_;
+    gameHandler.chatAutoJoin.local = chatAutoJoinLocal_;
 
     // Process targeting input before UI windows
     processTargetInput(gameHandler);
@@ -5685,6 +5687,7 @@ void GameScreen::renderSettingsWindow() {
                 if (ImGui::Checkbox("Trade", &chatAutoJoinTrade_)) saveSettings();
                 if (ImGui::Checkbox("LocalDefense", &chatAutoJoinLocalDefense_)) saveSettings();
                 if (ImGui::Checkbox("LookingForGroup", &chatAutoJoinLFG_)) saveSettings();
+                if (ImGui::Checkbox("Local", &chatAutoJoinLocal_)) saveSettings();
 
                 ImGui::Spacing();
                 ImGui::Spacing();
@@ -5704,6 +5707,7 @@ void GameScreen::renderSettingsWindow() {
                     chatAutoJoinTrade_ = true;
                     chatAutoJoinLocalDefense_ = true;
                     chatAutoJoinLFG_ = true;
+                    chatAutoJoinLocal_ = true;
                     saveSettings();
                 }
 
@@ -6189,6 +6193,7 @@ void GameScreen::saveSettings() {
     out << "chat_autojoin_trade=" << (chatAutoJoinTrade_ ? 1 : 0) << "\n";
     out << "chat_autojoin_localdefense=" << (chatAutoJoinLocalDefense_ ? 1 : 0) << "\n";
     out << "chat_autojoin_lfg=" << (chatAutoJoinLFG_ ? 1 : 0) << "\n";
+    out << "chat_autojoin_local=" << (chatAutoJoinLocal_ ? 1 : 0) << "\n";
 
     LOG_INFO("Settings saved to ", path);
 }
@@ -6248,6 +6253,7 @@ void GameScreen::loadSettings() {
             else if (key == "chat_autojoin_trade") chatAutoJoinTrade_ = (std::stoi(val) != 0);
             else if (key == "chat_autojoin_localdefense") chatAutoJoinLocalDefense_ = (std::stoi(val) != 0);
             else if (key == "chat_autojoin_lfg") chatAutoJoinLFG_ = (std::stoi(val) != 0);
+            else if (key == "chat_autojoin_local") chatAutoJoinLocal_ = (std::stoi(val) != 0);
         } catch (...) {}
     }
     LOG_INFO("Settings loaded from ", path);