feat: add NeoForge support, fix Forge installPack bug, update server proxy

- Fix MinecraftLib.installPack() returning false for Forge (was dead code)
- Add NeoForgeInstaller.java with installer download and execution
- Update LaunchCommandBuilder with NeoForge JVM args, classpath, launch args
- Update LaunchMenu with NeoForge option, version selector, support check
- Update Instance.java loader type comment (vanilla, fabric, forge, neoforge)
- Update PackDownloader to handle neoforge loader type
- Update ZHttpClient with NEOFORGE_MAVEN service type and detection
- Add NeoForge proxy endpoints (/proxy/neoforge/versions, /proxy/neoforge/maven)
- Add maven.neoforged.net to proxy allowed_domains
- Add asset_index to PackMeta model and pack_manager scanning
- Include asset_index in /packs list endpoint response

server/main.py

@@ -520,7 +520,8 @@ async def list_packs(current_user: dict = Depends(get_current_user)):
                             "updated_at": updated_at,
                             "minecraft_version": meta.get("minecraft_version", "unknown"),
                             "loader_type": meta.get("loader_type", "vanilla"),
-                            "loader_version": meta.get("loader_version")
+                            "loader_version": meta.get("loader_version"),
+                            "asset_index": meta.get("asset_index")
                         })
                 except Exception as e:
                     logger.error(f"Failed to load pack meta for {pack_dir.name}: {e}")
@@ -1079,6 +1080,58 @@ async def proxy_forge_maven(path: str, request: Request):
         raise HTTPException(502, f"Bad Gateway: {str(e)}")
 
 
+@app.get("/proxy/neoforge/versions")
+async def proxy_neoforge_versions(request: Request):
+    """Прокси для списка версий NeoForge"""
+    client_ip = request.client.host if request.client else "unknown"
+    logger.info(f"Proxy request: NeoForge versions from {client_ip}")
+    
+    url = "https://maven.neoforged.net/releases/net/neoforged/neoforge/maven-metadata.xml"
+    
+    try:
+        response = await proxy_client.get(url)
+        response.raise_for_status()
+        
+        return Response(
+            content=response.content,
+            media_type="application/xml",
+            headers={"X-Proxied-By": "ZernMC"}
+        )
+        
+    except httpx.HTTPError as e:
+        logger.error(f"Proxy error for NeoForge versions: {e}")
+        raise HTTPException(502, f"Bad Gateway: {str(e)}")
+
+
+@app.get("/proxy/neoforge/maven/{path:path}")
+async def proxy_neoforge_maven(path: str, request: Request):
+    """Прокси для NeoForge Maven файлов"""
+    client_ip = request.client.host if request.client else "unknown"
+    logger.info(f"Proxy request: NeoForge Maven {path} from {client_ip}")
+    
+    full_url = f"https://maven.neoforged.net/{path}"
+    
+    try:
+        response = await proxy_client.get(full_url)
+        response.raise_for_status()
+        
+        content_type = "application/octet-stream"
+        if path.endswith(".jar"):
+            content_type = "application/java-archive"
+        elif path.endswith(".pom"):
+            content_type = "application/xml"
+        
+        return Response(
+            content=response.content,
+            media_type=content_type,
+            headers={"X-Proxied-By": "ZernMC"}
+        )
+        
+    except httpx.HTTPError as e:
+        logger.error(f"Proxy error for NeoForge Maven {path}: {e}")
+        raise HTTPException(502, f"Bad Gateway: {str(e)}")
+
+
 @app.get("/proxy/download")
 async def proxy_download(request: Request):
     """Универсальный прокси для скачивания файлов"""
@@ -1096,7 +1149,8 @@ async def proxy_download(request: Request):
         "launchermeta.mojang.com",
         "resources.download.minecraft.net",
         "maven.minecraftforge.net",
-        "files.minecraftforge.net"
+        "files.minecraftforge.net",
+        "maven.neoforged.net"
     ]
     
     # Проверяем, что URL ведет на разрешенный домен
@@ -1172,7 +1226,8 @@ async def proxy_status():
             "piston-meta.mojang.com",
             "launchermeta.mojang.com",
             "resources.download.minecraft.net",
-            "maven.minecraftforge.net"
+            "maven.minecraftforge.net",
+            "maven.neoforged.net"
         ],
         "note": "Use this proxy if you have network issues connecting to Fabric/Mojang/Forge"
     }