fix(local-tool): sidebar icon + Wails Windows icon.ico + 掃裝置路徑修復

sidebar E icon：
- frontend/src/components/layout/sidebar.tsx 左上角的 "E" 方塊換成 <img> 指向
  /visiona-logo.png，從 frontend/public/visiona-logo.png serve

Wails 桌面/工作列 icon：
- 把 branding/icon.ico 複製到 visiona-local/build/windows/icon.ico
- Wails v2 Windows build 偵測到這個檔案就會直接用它當 exe embedded icon，
  不再從 appicon.png 自動 resize（解析度更好）

掃裝置根因修復：
1. server main.go：新增 resolveBridgeScript() 智慧找 kneron_bridge.py
   - 優先 <exe>/scripts/kneron_bridge.py
   - fallback <exe>/../scripts/... 對應 Windows installer 的 {app}\bin\ + {app}\scripts\ 佈局
   - fallback <exe>/../Resources/scripts/... 對應 macOS app bundle

2. server kneron/detector.go：ResolvePython 重寫
   - 最高優先：VISIONA_PYTHON 環境變數（由 Wails 殼層注入）
   - 加入 visiona-local 新路徑：%APPDATA%\visiona-local\runtime\venv、
     ~/Library/Application Support/visiona-local/runtime/venv、
     ~/.local/share/visiona-local/runtime/venv
   - 保留 edge-ai-platform 舊路徑作為 legacy fallback

3. visiona-local/app.go：spawn server 時 export VISIONA_PYTHON=<pyBin>
   讓 detector 直接用 Wails 殼層已經 resolve 好的 python interpreter，
   不再自己獨立去找造成不一致。

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

local-tool/frontend/src/components/layout/sidebar.tsx

@@ -21,9 +21,12 @@ export function Sidebar() {
     <aside className="flex h-full w-60 flex-col border-r bg-card">
       <div className="flex h-14 items-center border-b px-4">
         <Link href="/" className="flex items-center gap-2 font-semibold">
-          <div className="flex h-8 w-8 items-center justify-center rounded-lg bg-primary text-primary-foreground text-sm font-bold">
-            E
-          </div>
+          {/* eslint-disable-next-line @next/next/no-img-element */}
+          <img
+            src="/visiona-logo.png"
+            alt="visionA Local"
+            className="h-8 w-8 rounded-lg"
+          />
           <span className="text-lg">{t('nav.appName')}</span>
         </Link>
       </div>

local-tool/server/internal/driver/kneron/detector.go

@@ -13,28 +13,52 @@ import (
 )
 
 // ResolvePython finds the best Python interpreter for the given script path.
-// Search order: script-local venv → parent venv → platform config dir venv → system python3/python.
+//
+// Search order:
+//  1. VISIONA_PYTHON env var (highest priority — set by Wails shell when it
+//     has already provisioned a bundled venv)
+//  2. Script-local venv / parent venv
+//  3. %APPDATA%\visiona-local\runtime\venv (Windows installer seeded venv)
+//  4. ~/.local/share/visiona-local/runtime/venv (Linux)
+//  5. ~/Library/Application Support/visiona-local/runtime/venv (macOS)
+//  6. Legacy: ~/.edge-ai-platform/venv / %LOCALAPPDATA%\EdgeAIPlatform\venv
+//  7. System python3 / python
 func ResolvePython(scriptPath string) string {
+	// 1. Environment variable override (set by Wails shell)
+	if p := os.Getenv("VISIONA_PYTHON"); p != "" {
+		if _, err := os.Stat(p); err == nil {
+			return p
+		}
+	}
+
 	scriptDir := filepath.Dir(scriptPath)
 	parentDir := filepath.Dir(scriptDir)
 
-	// Build candidate list with both Unix and Windows venv layouts
+	// 2. Script-local / parent venv
 	var candidates []string
 	for _, base := range []string{scriptDir, parentDir} {
 		candidates = append(candidates,
-			filepath.Join(base, "venv", "bin", "python3"),           // Unix
-			filepath.Join(base, "venv", "Scripts", "python.exe"),    // Windows
+			filepath.Join(base, "venv", "bin", "python3"),        // Unix
+			filepath.Join(base, "venv", "Scripts", "python.exe"), // Windows
 		)
 	}
 
+	// 3-5. Platform-specific data dir (visiona-local)
 	if home, err := os.UserHomeDir(); err == nil {
 		candidates = append(candidates,
+			// Windows: %APPDATA%\visiona-local\runtime\venv
+			filepath.Join(os.Getenv("APPDATA"), "visiona-local", "runtime", "venv", "Scripts", "python.exe"),
+			// macOS
+			filepath.Join(home, "Library", "Application Support", "visiona-local", "runtime", "venv", "bin", "python3"),
+			// Linux
+			filepath.Join(home, ".local", "share", "visiona-local", "runtime", "venv", "bin", "python3"),
+			// 6. Legacy edge-ai-platform paths (backwards compat for upgrades)
 			filepath.Join(home, ".edge-ai-platform", "venv", "bin", "python3"),
 			filepath.Join(home, ".edge-ai-platform", "venv", "Scripts", "python.exe"),
 		)
 	}
 
-	// On Windows, also check %LOCALAPPDATA%\EdgeAIPlatform\venv
+	// 6b. Legacy %LOCALAPPDATA%\EdgeAIPlatform\venv
 	if appData := os.Getenv("LOCALAPPDATA"); appData != "" {
 		candidates = append(candidates,
 			filepath.Join(appData, "EdgeAIPlatform", "venv", "Scripts", "python.exe"),
@@ -42,12 +66,15 @@ func ResolvePython(scriptPath string) string {
 	}
 
 	for _, p := range candidates {
+		if p == "" {
+			continue
+		}
 		if _, err := os.Stat(p); err == nil {
 			return p
 		}
 	}
 
-	// Fallback to system python
+	// 7. Fallback to system python
 	for _, name := range []string{"python3", "python"} {
 		if p, err := exec.LookPath(name); err == nil {
 			return p

local-tool/server/main.go

@@ -49,6 +49,33 @@ func baseDir(devMode bool) string {
 	return filepath.Dir(exe)
 }
 
+// resolveBridgeScript finds kneron_bridge.py across different packaging layouts.
+//
+// Possible locations (tried in order):
+//  1. <base>/scripts/kneron_bridge.py              — dev mode or flat layout
+//  2. <base>/../scripts/kneron_bridge.py           — Windows/Linux installer: binary in {app}/bin, scripts in {app}/scripts
+//  3. <base>/../Resources/scripts/kneron_bridge.py — macOS app bundle: binary in Contents/MacOS, scripts in Contents/Resources
+//  4. ./scripts/kneron_bridge.py                   — cwd fallback
+func resolveBridgeScript(base string) string {
+	candidates := []string{
+		filepath.Join(base, "scripts", "kneron_bridge.py"),
+		filepath.Join(base, "..", "scripts", "kneron_bridge.py"),
+		filepath.Join(base, "..", "Resources", "scripts", "kneron_bridge.py"),
+		filepath.Join(".", "scripts", "kneron_bridge.py"),
+	}
+	for _, c := range candidates {
+		abs, err := filepath.Abs(c)
+		if err != nil {
+			continue
+		}
+		if info, err := os.Stat(abs); err == nil && !info.IsDir() {
+			return abs
+		}
+	}
+	// Nothing found — return the default so downstream logs a clear error
+	return filepath.Join(base, "scripts", "kneron_bridge.py")
+}
+
 func main() {
 	cfg := config.Load()
 
@@ -101,7 +128,9 @@ func main() {
 
 	// Initialize device manager
 	registry := device.NewRegistry()
-	deviceMgr := device.NewManager(registry, cfg.MockMode, cfg.MockDeviceCount, filepath.Join(base, "scripts", "kneron_bridge.py"))
+	bridgeScript := resolveBridgeScript(base)
+	logger.Info("Kneron bridge script: %s", bridgeScript)
+	deviceMgr := device.NewManager(registry, cfg.MockMode, cfg.MockDeviceCount, bridgeScript)
 	deviceMgr.SetLogBroadcaster(logBroadcaster)
 	deviceMgr.Start()
 

local-tool/visiona-local/app.go

@@ -377,6 +377,12 @@ func (a *App) startServer() error {
 		env = append(env, "VISIONA_BUNDLE_BIN_DIR="+binDir)
 		fmt.Fprintln(os.Stderr, "[visiona-local] bundle bin dir:", binDir)
 	}
+	// 注入 python interpreter 路徑給 server（kneron detector 會讀 VISIONA_PYTHON）
+	// 避免 detector 自己去 resolve 又走不同的路徑邏輯造成不一致。
+	if !a.mockMode && pyBin != "" {
+		env = append(env, "VISIONA_PYTHON="+pyBin)
+		fmt.Fprintln(os.Stderr, "[visiona-local] python interpreter:", pyBin)
+	}
 	cmd.Env = env
 	if stdoutLog != nil {
 		cmd.Stdout = stdoutLog