feat: ConvertGUI v2.0 (Wails + preview/trim + NSIS + Gitea CI)

wails.json

@@ -0,0 +1,19 @@
+{
+  "$schema": "https://wails.io/schemas/config.v2.json",
+  "name": "ConvertGUI",
+  "outputfilename": "convert",
+  "frontend:install": "npm install",
+  "frontend:build": "npm run build",
+  "frontend:dev:watcher": "npm run dev",
+  "frontend:dev:serverUrl": "auto",
+  "author": {
+    "name": "m4xx1m"
+  },
+  "info": {
+    "companyName": "m4xx1m",
+    "productName": "ConvertGUI",
+    "productVersion": "2.0.0",
+    "copyright": "MIT",
+    "comments": "Fast FFmpeg GUI Video Converter with Preview and Trim"
+  }
+}