Add expansion DBC CSVs, Turtle support, and server-specific login

include/game/packet_parsers.hpp

@@ -169,7 +169,7 @@ public:
  * Factory function to create the right parser set for an expansion.
  */
 inline std::unique_ptr<PacketParsers> createPacketParsers(const std::string& expansionId) {
-    if (expansionId == "classic") return std::make_unique<ClassicPacketParsers>();
+    if (expansionId == "classic" || expansionId == "turtle") return std::make_unique<ClassicPacketParsers>();
     if (expansionId == "tbc") return std::make_unique<TbcPacketParsers>();
     return std::make_unique<WotlkPacketParsers>();
 }

include/pipeline/asset_manager.hpp

@@ -71,6 +71,13 @@ public:
      */
     BLPImage loadTexture(const std::string& path);
 
+    /**
+     * Set expansion-specific data path for CSV DBC lookup.
+     * When set, loadDBC() checks expansionDataPath/db/Name.csv before
+     * falling back to the manifest (binary DBC from extracted MPQs).
+     */
+    void setExpansionDataPath(const std::string& path);
+
     /**
      * Load a DBC file
      * @param name DBC file name (e.g., "Map.dbc")
@@ -127,6 +134,7 @@ public:
 private:
     bool initialized = false;
     std::string dataPath;
+    std::string expansionDataPath_;  // e.g. "Data/expansions/wotlk"
 
     // Base manifest (loaded from dataPath/manifest.json)
     AssetManifest manifest_;

include/pipeline/dbc_loader.hpp

@@ -130,6 +130,12 @@ private:
     mutable bool idCacheBuilt = false;
 
     void buildIdCache() const;
+
+    /**
+     * Load from CSV text format (produced by dbc_to_csv tool).
+     * Rebuilds the same in-memory layout as binary load.
+     */
+    bool loadCSV(const std::vector<uint8_t>& csvData);
 };
 
 } // namespace pipeline

include/ui/auth_screen.hpp

@@ -42,6 +42,14 @@ public:
     const std::string& getStatusMessage() const { return statusMessage; }
 
 private:
+    struct ServerProfile {
+        std::string hostname;
+        int port = 3724;
+        std::string username;
+        std::string passwordHash;  // SHA1 hex (UPPER(user):UPPER(pass))
+        std::string expansionId;   // "wotlk", "tbc", "classic", "turtle", ...
+    };
+
     // UI state
     char hostname[256] = "127.0.0.1";
     char username[256] = "";
@@ -63,6 +71,10 @@ private:
     bool usingStoredHash = false;
     static constexpr const char* PASSWORD_PLACEHOLDER = "\x01\x01\x01\x01\x01\x01\x01\x01";
 
+    // Saved server-specific profiles
+    std::vector<ServerProfile> servers_;
+    int selectedServerIndex_ = -1;  // -1 = custom/unlisted
+
     // Callbacks
     std::function<void()> onSuccess;
 
@@ -79,11 +91,16 @@ private:
     /**
      * Persist/restore login fields
      */
-    void saveLoginInfo();
+    void saveLoginInfo(bool includePasswordHash);
     void loadLoginInfo();
     static std::string getConfigPath();
     bool loginInfoLoaded = false;
 
+    static std::string makeServerKey(const std::string& host, int port);
+    void selectServerProfile(int index);
+    void upsertCurrentServerProfile(bool includePasswordHash);
+    std::string currentExpansionId() const;
+
     // Background video
     bool videoInitAttempted = false;
     rendering::VideoPlayer backgroundVideo;