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

Launch-Unix-Prod.sh

@@ -0,0 +1,62 @@
+#!/bin/bash
+
+# NomadArch Production Launcher for macOS and Linux
+# Version: 0.4.0
+
+set -euo pipefail
+
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m'
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+cd "$SCRIPT_DIR"
+
+echo ""
+echo "NomadArch Launcher (macOS/Linux, Production Mode)"
+echo "Version: 0.4.0"
+echo "Features: SMART FIX / APEX / SHIELD / MULTIX MODE"
+echo ""
+
+echo "[STEP 1/3] Checking Dependencies..."
+
+if ! command -v node &> /dev/null; then
+    echo -e "${RED}[ERROR]${NC} Node.js not found!"
+    echo "Please run the installer first:"
+    if [[ "$OSTYPE" == "darwin"* ]]; then
+        echo "  ./Install-Mac.sh"
+    else
+        echo "  ./Install-Linux.sh"
+    fi
+    exit 1
+fi
+
+NODE_VERSION=$(node --version)
+echo -e "${GREEN}[OK]${NC} Node.js: $NODE_VERSION"
+
+echo ""
+echo "[STEP 2/3] Checking Pre-Built UI..."
+
+if [[ -d "packages/electron-app/dist/renderer/assets" ]]; then
+    echo -e "${GREEN}[OK]${NC} Pre-built UI assets found"
+else
+    echo -e "${RED}[ERROR]${NC} Pre-built UI assets not found."
+    echo "Run: npm run build"
+    exit 1
+fi
+
+echo ""
+echo "[STEP 3/3] Starting NomadArch (Production Mode)..."
+
+cd packages/electron-app
+npx electron .
+EXIT_CODE=$?
+
+if [[ $EXIT_CODE -ne 0 ]]; then
+    echo ""
+    echo -e "${RED}[ERROR]${NC} NomadArch exited with an error!"
+fi
+
+exit $EXIT_CODE