v0.5.0: Binary-Free Mode - No OpenCode binary required

✨ Major Features:
- Native session management without OpenCode binary
- Provider routing: OpenCode Zen (free), Qwen OAuth, Z.AI
- Streaming chat with tool execution loop
- Mode detection API (/api/meta/mode)
- MCP integration fix (resolved infinite loading)
- NomadArch Native option in UI with comparison info

🆓 Free Models (No API Key):
- GPT-5 Nano (400K context)
- Grok Code Fast 1 (256K context)
- GLM-4.7 (205K context)
- Doubao Seed Code (256K context)
- Big Pickle (200K context)

📦 New Files:
- session-store.ts: Native session persistence
- native-sessions.ts: REST API for sessions
- lite-mode.ts: UI mode detection client
- native-sessions.ts (UI): SolidJS store

🔧 Updated:
- All installers: Optional binary download
- All launchers: Mode detection display
- Binary selector: Added NomadArch Native option
- README: Binary-Free Mode documentation

packages/electron-app/electron/main/main.ts

@@ -28,6 +28,16 @@ if (isMac) {
   app.commandLine.appendSwitch("disable-spell-checking")
 }
 
+// Windows: Use Edge WebView2 rendering for better performance
+if (process.platform === "win32") {
+  app.commandLine.appendSwitch("enable-features", "WebViewTagWebComponent,WebView2")
+  app.commandLine.appendSwitch("disable-gpu-sandbox")
+  app.commandLine.appendSwitch("enable-gpu-rasterization")
+  app.commandLine.appendSwitch("enable-zero-copy")
+  app.commandLine.appendSwitch("disable-background-timer-throttling")
+  app.commandLine.appendSwitch("disable-renderer-backgrounding")
+}
+
 function getIconPath() {
   if (app.isPackaged) {
     return join(process.resourcesPath, "icon.png")