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-Dev-Unix.sh

@@ -66,14 +66,46 @@ SERVER_PORT=$DEFAULT_SERVER_PORT
 UI_PORT=$DEFAULT_UI_PORT
 
 for port in {3001..3050}; do
-    if ! lsof -i :$port -sTCP:LISTEN -t > /dev/null 2>&1; then
+    # Try lsof first, then ss, then netstat
+    if command -v lsof &> /dev/null; then
+        if ! lsof -i :$port -sTCP:LISTEN -t > /dev/null 2>&1; then
+            SERVER_PORT=$port
+            break
+        fi
+    elif command -v ss &> /dev/null; then
+        if ! ss -tuln | grep -q ":$port "; then
+            SERVER_PORT=$port
+            break
+        fi
+    elif command -v netstat &> /dev/null; then
+        if ! netstat -tuln | grep -q ":$port "; then
+            SERVER_PORT=$port
+            break
+        fi
+    else
         SERVER_PORT=$port
         break
     fi
 done
 
 for port in {3000..3050}; do
-    if ! lsof -i :$port -sTCP:LISTEN -t > /dev/null 2>&1; then
+    # Try lsof first, then ss, then netstat
+    if command -v lsof &> /dev/null; then
+        if ! lsof -i :$port -sTCP:LISTEN -t > /dev/null 2>&1; then
+            UI_PORT=$port
+            break
+        fi
+    elif command -v ss &> /dev/null; then
+        if ! ss -tuln | grep -q ":$port "; then
+            UI_PORT=$port
+            break
+        fi
+    elif command -v netstat &> /dev/null; then
+        if ! netstat -tuln | grep -q ":$port "; then
+            UI_PORT=$port
+            break
+        fi
+    else
         UI_PORT=$port
         break
     fi