refactor: 简化项目配置，改用环境变量端口并专注 MSI 发布

- 重命名项目为 openbridgeTokenUsageViewer (camelCase 风格)
- 移除 DJB2 hash 端口计算，改用 PROJECT_SERVER_PORT 环境变量 (默认 3000)
- 删除 src/lib/project-port.ts 冗余模块
- 打包目标从 "all" 改为 "msi"，专注 Windows 安装程序发布

src-tauri/tauri.conf.json

@@ -1,8 +1,8 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
-  "productName": "openbridge-token-usage-viewer",
+  "productName": "openbridgeTokenUsageViewer",
   "version": "0.1.0",
-  "identifier": "com.imbytecat.openbridge-token-usage-viewer",
+  "identifier": "com.imbytecat.openbridgetokenusageviewer",
   "app": {
     "withGlobalTauri": true,
     "windows": [],
@@ -12,7 +12,7 @@
   },
   "bundle": {
     "active": true,
-    "targets": "all",
+    "targets": ["msi"],
     "icon": [
       "icons/32x32.png",
       "icons/128x128.png",
@@ -20,6 +20,6 @@
       "icons/icon.icns",
       "icons/icon.ico"
     ],
-    "externalBin": ["binaries/openbridge-token-usage-viewer"]
+    "externalBin": ["binaries/openbridgeTokenUsageViewerServer"]
   }
 }