DNF90 服务端与启动器完整源码（含 GM 工具功能增强）

服务端（Go）：
- GM 塞背包/带属性装备发放：在线角色推送 op14 增量物品行，背包实时刷新，无需回角色选择界面
- GM 改金币/改等级：去掉在线拒绝，落库后推送 op14 钱包/op37 等级状态，在线实时刷新
- 等级端点统一切换到新版 GMSetCharacterLevel（自带在线刷新）
- 无限/锁死疲劳模式 + 燃烧疲劳：每房间消耗 2 点、打怪与通关经验双倍
- 燃烧疲劳开关时给所有在线角色推送系统提示（op12 mode 0）
- 深渊史诗掉率：GM 全局倍率 + 城镇增益药剂窗口倍率，真实接入掉落结算

启动器（Python/JS）：
- 标题栏自绘、窗口 1204x717、禁止拖拽改大小、仅最小化/关闭
- GM 工具：疲劳与燃烧、深渊史诗掉率、拍卖行上架（单一定价对齐）
- 拍卖行上架前端对齐服务端单一价格语义，修复 400 报错

loadout-tool/ServerClient.cs

@@ -0,0 +1,109 @@
+using System.Net.Http.Headers;
+using System.Net.Http.Json;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace DNFLoadout;
+
+internal sealed class ServerClient
+{
+    private readonly HttpClient _http = new() { Timeout = TimeSpan.FromSeconds(10) };
+    private readonly Config _config;
+
+    public ServerClient(Config config) => _config = config;
+
+    private HttpRequestMessage Request(HttpMethod method, string path)
+    {
+        var req = new HttpRequestMessage(method, _config.ServerUrl.TrimEnd('/') + path);
+        if (!string.IsNullOrWhiteSpace(_config.AdminToken))
+            req.Headers.TryAddWithoutValidation("X-Admin-Token", _config.AdminToken.Trim());
+        return req;
+    }
+
+    public async Task<List<SlotItem>> GetEquipmentAsync(string characterName)
+    {
+        using var req = Request(HttpMethod.Get,
+            "/local/dnf-gm/loadout/equipment?character_id=" + Uri.EscapeDataString(characterName.Trim()));
+        using var resp = await _http.SendAsync(req);
+        var text = await resp.Content.ReadAsStringAsync();
+        if (!resp.IsSuccessStatusCode) throw new Exception(text);
+        var envelope = JsonSerializer.Deserialize<Envelope<SnapshotData>>(text)
+            ?? throw new Exception("empty response");
+        if (!envelope.Ok) throw new Exception(envelope.Error ?? "server returned failure");
+        return envelope.Data?.Slots ?? new List<SlotItem>();
+    }
+
+    public async Task<List<CharacterInfo>> GetCharactersAsync()
+    {
+        using var req = Request(HttpMethod.Get, "/local/dnf-gm/characters");
+        using var resp = await _http.SendAsync(req);
+        var text = await resp.Content.ReadAsStringAsync();
+        if (!resp.IsSuccessStatusCode) throw new Exception(text);
+        var envelope = JsonSerializer.Deserialize<Envelope<List<CharacterInfo>>>(text)
+            ?? throw new Exception("empty response");
+        if (!envelope.Ok) throw new Exception(envelope.Error ?? "server returned failure");
+        return envelope.Data ?? new List<CharacterInfo>();
+    }
+
+    internal sealed class CharacterInfo
+    {
+        [JsonPropertyName("character_id")] public string CharacterId { get; set; } = "";
+        [JsonPropertyName("name")] public string Name { get; set; } = "";
+        [JsonPropertyName("online")] public bool Online { get; set; }
+    }
+
+    public async Task<ApplyData> ApplyAsync(string characterName, IEnumerable<SlotItem> slots)
+    {
+        var body = new ApplyRequest
+        {
+            CharacterId = characterName.Trim(),
+            Slots = slots.ToList(),
+        };
+        using var req = Request(HttpMethod.Post, "/local/dnf-gm/loadout/apply");
+        req.Content = JsonContent.Create(body);
+        using var resp = await _http.SendAsync(req);
+        var text = await resp.Content.ReadAsStringAsync();
+        if (!resp.IsSuccessStatusCode) throw new Exception(text);
+        var envelope = JsonSerializer.Deserialize<Envelope<ApplyData>>(text)
+            ?? throw new Exception("empty response");
+        if (!envelope.Ok) throw new Exception(envelope.Error ?? "server returned failure");
+        return envelope.Data ?? new ApplyData();
+    }
+
+    private sealed class Envelope<T>
+    {
+        [JsonPropertyName("ok")] public bool Ok { get; set; }
+        [JsonPropertyName("error")] public string? Error { get; set; }
+        [JsonPropertyName("data")] public T? Data { get; set; }
+    }
+
+    private sealed class SnapshotData
+    {
+        [JsonPropertyName("character_id")] public string CharacterId { get; set; } = "";
+        [JsonPropertyName("online")] public bool Online { get; set; }
+        [JsonPropertyName("slots")] public List<SlotItem> Slots { get; set; } = new();
+    }
+
+    private sealed class ApplyRequest
+    {
+        [JsonPropertyName("character_id")] public string CharacterId { get; set; } = "";
+        [JsonPropertyName("slots")] public List<SlotItem> Slots { get; set; } = new();
+    }
+
+    internal sealed class ApplyData
+    {
+        [JsonPropertyName("applied")] public List<SlotItem>? Applied { get; set; } = new();
+        [JsonPropertyName("skipped")] public List<SkipData>? Skipped { get; set; } = new();
+        [JsonPropertyName("refresh_sent")] public bool RefreshSent { get; set; }
+        [JsonPropertyName("refresh_error")] public string? RefreshError { get; set; }
+        [JsonPropertyName("cooldown_seconds")] public int CooldownSeconds { get; set; }
+        [JsonPropertyName("cooldown_remaining")] public int CooldownRemaining { get; set; }
+    }
+
+    internal sealed class SkipData
+    {
+        [JsonPropertyName("slot")] public int Slot { get; set; }
+        [JsonPropertyName("item_id")] public long ItemId { get; set; }
+        [JsonPropertyName("reason")] public string Reason { get; set; } = "";
+    }
+}