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/ui/src/renderer/loading/main.tsx

@@ -202,7 +202,7 @@ function LoadingApp() {
       <img src={iconUrl} alt="NomadArch" class="loading-logo" width="180" height="180" />
       <div class="loading-heading">
         <h1 class="loading-title">NomadArch 1.0</h1>
-        <p class="loading-subtitle" style={{ "font-size": '14px', "color": '#666', "margin-top": '4px' }}>A fork of OpenCode</p>
+        <p class="loading-subtitle" style={{ "font-size": '14px', "color": '#666', "margin-top": '4px' }}>An enhanced fork of CodeNomad</p>
         <Show when={status()}>{(statusText) => <p class="loading-status">{statusText()}</p>}</Show>
       </div>
       <div class="loading-card">