feat: 公开宿主组合加载 API、Forge 风格依赖版本区间与加载顺序、程序集解析策略

- ShrinkModComponentDiscovery.Discover 公开：只发现、不执行生命周期
- ShrinkModLoader.LoadComposed / ShrinkModCordisRuntime.ApplyComposedAsync：宿主提供元数据组合加载，支持纯数据包与 IShrinkModWrapper 公开真实实例
- 公开 TryAttachEventBusInstance，随生命周期逆操作释放
- 依赖新增 VersionRange（Maven/Forge 区间语法）与 Ordering（Before/After）
- AssemblyResolvePolicy 可限制跨模组程序集解析

Runtime/Context/ShrinkModCordisRuntime.cs

@@ -37,9 +37,9 @@ namespace ShrinkModFramework
             try
             {
                 var authorizedPaths = authorizedDllPaths?.ToArray() ?? Array.Empty<string>();
-                var sources = ShrinkModComponentDiscovery.Discover(
+                var sources = ShrinkModComponentDiscovery.DiscoverCurrent(
                     settings, verboseLogging, authorizedPaths);
-                await _host.ApplyAsync(sources);
+                await _host.ApplyAsync(sources, () => ShrinkExternalModAssemblyLoader.RestoreState(revisionState));
             }
             catch
             {
@@ -54,6 +54,42 @@ namespace ShrinkModFramework
             return _host.Mods;
         }
 
+        /// <summary>提交宿主组合；生命周期或发现失败时恢复之前的程序集 revision 和组件。</summary>
+        public static async UniTask<IReadOnlyDictionary<string, ShrinkModHandle>> ApplyComposedAsync(
+            ShrinkModFrameworkSettings settings, IReadOnlyList<ShrinkModComponentSource> sources)
+        {
+            if (sources == null) throw new ArgumentNullException(nameof(sources));
+            settings ??= ShrinkModFrameworkSettings.Instance;
+            var verbose = settings != null && settings.verboseLogging;
+            if (_host == null) _host = new ShrinkModContextHost(settings == null || settings.enableHarmonyPatching, verbose);
+            var previous = ShrinkExternalModAssemblyLoader.CaptureState();
+            try
+            {
+                var states = sources.Where(source => source != null && source.DiscoveryState != null)
+                    .Select(source => source.DiscoveryState).Distinct().ToArray();
+                var composedState = new ShrinkExternalModAssemblyLoader.RevisionState();
+                foreach (var state in states)
+                {
+                    foreach (var pair in state.Current)
+                    {
+                        if (composedState.Current.TryGetValue(pair.Key, out var other) && other.Revision != pair.Value.Revision)
+                            throw new InvalidOperationException($"Conflicting discovered revisions for {pair.Key}.");
+                        composedState.Current[pair.Key] = pair.Value;
+                    }
+                    foreach (var pair in state.Known) composedState.Known[pair.Key] = pair.Value;
+                }
+                ShrinkExternalModAssemblyLoader.RestoreState(composedState);
+                ShrinkModNetworkManager.Configure(settings == null || settings.enableNetworkSync, verbose);
+                await _host.ApplyAsync(sources, () => ShrinkExternalModAssemblyLoader.RestoreState(previous));
+            }
+            catch
+            {
+                ShrinkExternalModAssemblyLoader.RestoreState(previous);
+                throw;
+            }
+            return _host.Mods;
+        }
+
         public static IReadOnlyShrinkModRegistry<T> GetOrCreateRegistry<T>(string name) =>
             Host.GetOrCreateRegistry<T>(name);