feat: 抖音直播间弹幕监控 - Go+Wails 实现

后端:
- SQLite 数据层 (rooms/users/chat_logs/settings/error_logs)
- 抖音 WebSocket 抓取器 (proto 解析, 心跳, watchdog)
- __ac_signature 算法 (纯 Go 移植)
- a_bogus/sign.js 签名 (goja JS 引擎)
- Echo HTTP API 服务器 (端口 5000)
- SSE 事件广播
- 自动保活 + 授权守护
- PAYS 云授权对接

前端:
- 顶栏: 品牌 + 日志/调试/客户名单/授权/文档/房间控制/主题切换
- 添加直播间 (链接解析 + 关键词)
-  Dashboard (卡片/列表视图, 公开/匿名房筛选, 分页)
- 详情页 (多 tab 消息流, 右侧用户面板, 颜色标记, 精准客户, 已看标记)
- 精准客户名单 (跨房间汇总)
- 订阅授权页面 (登录/注册/购买)
- 使用帮助 + 系统调试
- 白昼/黑夜主题切换 (CSS 变量 + iconfont)
- 底部版权栏

build/windows/info.json

@@ -0,0 +1,4 @@
+{
+  "fixed": { "file_version": "{{.Info.ProductVersion}}" },
+  "info": { "0000": { "ProductVersion": "{{.Info.ProductVersion}}", "CompanyName": "{{.Info.CompanyName}}", "FileDescription": "{{.Info.ProductName}}", "LegalCopyright": "{{.Info.Copyright}}", "ProductName": "{{.Info.ProductName}}", "Comments": "" } }
+}

build/windows/wails.exe.manifest

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
+    <assemblyIdentity type="win32" name="com.wails.{{.Name}}" version="{{.Info.ProductVersion}}.0" processorArchitecture="*"/>
+    <dependency>
+        <dependentAssembly>
+            <assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls" version="6.0.0.0" processorArchitecture="*" publicKeyToken="6595b64144ccf1df" language="*"/>
+        </dependentAssembly>
+    </dependency>
+    <asmv3:application>
+        <asmv3:windowsSettings>
+            <dpiAware xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">true/pm</dpiAware> <!-- fallback for Windows 7 and 8 -->
+            <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">permonitorv2,permonitor</dpiAwareness> <!-- falls back to per-monitor if per-monitor v2 is not supported -->
+        </asmv3:windowsSettings>
+    </asmv3:application>
+</assembly>