fix(lite): give the lite variant its own config folder (ObsidianDragonLite)

Both variants hardcoded "ObsidianDragon" as the per-user config folder
(settings.json, themes, the lite_rollout cache), so the lite app and the
full-node app shared one settings.json. That cross-variant pollution can leave
the lite server selection in a bad state — and since openWallet() contacts the
selected lightwalletd server, a wrong/empty server URL there makes an existing
wallet fail to open (a silent "disconnected" spinner).

Use DRAGONX_APP_NAME (already "ObsidianDragon" / "ObsidianDragonLite" per variant)
for the config-dir name in Settings::getDefaultPath, Platform::getConfigDir and
getObsidianDragonDir (and the theme-setup exe-name probe). Full-node is unchanged;
lite now reads/writes %APPDATA%\ObsidianDragonLite (and ~/.config/ObsidianDragonLite),
so it starts from a clean, isolated config and uses default servers.

Note: the lite wallet file itself lives in the litelib backend's own data dir
(unaffected); this isolates the GUI config only.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/config/settings.cpp

@@ -64,7 +64,7 @@ std::string Settings::getDefaultPath()
 #ifdef _WIN32
     char path[MAX_PATH];
     if (SUCCEEDED(SHGetFolderPathA(NULL, CSIDL_APPDATA, NULL, 0, path))) {
-        std::string dir = std::string(path) + "\\ObsidianDragon";
+        std::string dir = std::string(path) + "\\" DRAGONX_APP_NAME;
         fs::create_directories(dir);
         return dir + "\\settings.json";
     }
@@ -75,7 +75,7 @@ std::string Settings::getDefaultPath()
         struct passwd* pw = getpwuid(getuid());
         home = pw->pw_dir;
     }
-    std::string dir = std::string(home) + "/Library/Application Support/ObsidianDragon";
+    std::string dir = std::string(home) + "/Library/Application Support/" DRAGONX_APP_NAME;
     fs::create_directories(dir);
     return dir + "/settings.json";
 #else
@@ -84,7 +84,7 @@ std::string Settings::getDefaultPath()
         struct passwd* pw = getpwuid(getuid());
         home = pw->pw_dir;
     }
-    std::string dir = std::string(home) + "/.config/ObsidianDragon";
+    std::string dir = std::string(home) + "/.config/" DRAGONX_APP_NAME;
     fs::create_directories(dir);
     return dir + "/settings.json";
 #endif

src/util/platform.cpp

@@ -44,6 +44,7 @@
 #endif
 
 #include "../util/logger.h"
+#include "../config/version.h"  // DRAGONX_APP_NAME — variant-specific config folder name
 
 #ifndef _WIN32
 extern char **environ;
@@ -223,11 +224,11 @@ std::string Platform::getConfigDir()
 #ifdef _WIN32
     char path[MAX_PATH];
     if (SUCCEEDED(SHGetFolderPathA(nullptr, CSIDL_APPDATA, nullptr, 0, path))) {
-        return std::string(path) + "\\ObsidianDragon\\";
+        return std::string(path) + "\\" DRAGONX_APP_NAME "\\";
     }
-    return getHomeDir() + "\\AppData\\Roaming\\ObsidianDragon\\";
+    return getHomeDir() + "\\AppData\\Roaming\\" DRAGONX_APP_NAME "\\";
 #else
-    return getHomeDir() + "/.config/ObsidianDragon/";
+    return getHomeDir() + "/.config/" DRAGONX_APP_NAME "/";
 #endif
 }
 
@@ -370,17 +371,17 @@ std::string Platform::getObsidianDragonDir()
 #ifdef _WIN32
     const char* appdata = std::getenv("APPDATA");
     if (appdata) {
-        return (std::filesystem::path(appdata) / "ObsidianDragon").string();
+        return (std::filesystem::path(appdata) / DRAGONX_APP_NAME).string();
     }
-    return (std::filesystem::path(getHomeDir()) / "AppData" / "Roaming" / "ObsidianDragon").string();
+    return (std::filesystem::path(getHomeDir()) / "AppData" / "Roaming" / DRAGONX_APP_NAME).string();
 #elif defined(__APPLE__)
-    return (std::filesystem::path(getHomeDir()) / "Library" / "Application Support" / "ObsidianDragon").string();
+    return (std::filesystem::path(getHomeDir()) / "Library" / "Application Support" / DRAGONX_APP_NAME).string();
 #else
     const char* xdg_config = std::getenv("XDG_CONFIG_HOME");
     if (xdg_config) {
-        return (std::filesystem::path(xdg_config) / "ObsidianDragon").string();
+        return (std::filesystem::path(xdg_config) / DRAGONX_APP_NAME).string();
     }
-    return (std::filesystem::path(getHomeDir()) / ".config" / "ObsidianDragon").string();
+    return (std::filesystem::path(getHomeDir()) / ".config" / DRAGONX_APP_NAME).string();
 #endif
 }
 
@@ -414,9 +415,9 @@ void Platform::ensureObsidianDragonSetup()
         // Regenerate if the running binary is newer than the example file
         fs::path exePath = fs::path(getExecutableDirectory()) /
 #ifdef _WIN32
-            "ObsidianDragon.exe";
+            DRAGONX_APP_NAME ".exe";
 #else
-            "ObsidianDragon";
+            DRAGONX_APP_NAME;
 #endif
         std::error_code tec;
         auto exeTime  = fs::last_write_time(exePath, tec);