implement GitHub resource pack auto-updater with HTTP server and configuration

src/main/java/ceratic/projectvollidioten/config/GithubResourcePackConfig.java

@@ -0,0 +1,40 @@
+package ceratic.projectvollidioten.config;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+
+import java.io.*;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+public class GithubResourcePackConfig {
+    public String githubOwner = "your-username";
+    public String githubRepo = "your-repo";
+    public String resourcePackFileName = "my-pack.zip";
+    public int checkIntervalMinutes = 60; // check every hour
+
+    private static final Gson GSON = new GsonBuilder().setPrettyPrinting().create();
+    private static final String CONFIG_NAME = "resourcepack.json";
+
+    public static GithubResourcePackConfig loadOrCreate(Path configDir) {
+        Path configFile = configDir.resolve(CONFIG_NAME);
+        try {
+            if (Files.exists(configFile)) {
+                try (Reader reader = Files.newBufferedReader(configFile)) {
+                    return GSON.fromJson(reader, GithubResourcePackConfig.class);
+                }
+            } else {
+                // Create default config
+                GithubResourcePackConfig defaultConfig = new GithubResourcePackConfig();
+                Files.createDirectories(configDir);
+                try (Writer writer = Files.newBufferedWriter(configFile)) {
+                    GSON.toJson(defaultConfig, writer);
+                }
+                return defaultConfig;
+            }
+        } catch (Exception e) {
+            System.err.println("[GithubRP] Failed to load config, using defaults: " + e.getMessage());
+            return new GithubResourcePackConfig();
+        }
+    }
+}