fix: 修复前端多个问题

- 修复 favicon 未加载：构建脚本未内联 public/favicon.svg
- 修复终端重连残留：断开连接后清空终端内容和状态
- 修复 sz 下载文件损坏：将 Uint8Array 转为普通数组传给 save_to_disk
- 修复 rz 上传失败：input 元素过早移除导致 onchange 无法触发

frontend/src/terminal.ts

@@ -113,6 +113,11 @@ export class SSHTerminal {
 
   async connect(config: SSHConnectionConfig): Promise<void> {
     this.lastConfig = config;
+    this.terminal.clear();
+
+    const termStatus = document.getElementById('term-status');
+    if (termStatus) termStatus.innerHTML = '<div class="w-2 h-2 bg-primary-container animate-pulse"></div> Connected';
+
     const wsUrl = new URL(window.location.href);
     wsUrl.protocol = wsUrl.protocol === 'https:' ? 'wss:' : 'ws:';
     wsUrl.pathname = '/api/ssh';
@@ -156,6 +161,10 @@ export class SSHTerminal {
   connectWithWebSocket(ws: WebSocket): void {
     this.lastConfig = null;
     this.ws = ws;
+    this.terminal.clear();
+
+    const termStatus = document.getElementById('term-status');
+    if (termStatus) termStatus.innerHTML = '<div class="w-2 h-2 bg-primary-container animate-pulse"></div> Connected';
 
     ws.onopen = () => {
       this.terminal.writeln('\x1b[32m[+] WebSocket connected, authenticating...\x1b[0m');
@@ -301,6 +310,8 @@ export class SSHTerminal {
     this.ws = null;
     this.disposables.forEach(d => d.dispose());
     this.disposables = [];
+    this.lastConfig = null;
+    this.terminal.clear();
   }
 
   dispose(): void {

frontend/src/zmodem-handler.ts

@@ -55,9 +55,9 @@ export class ZmodemHandler {
         return;
       }
 
-      const packets: Array<Uint8Array> = [];
+      const packets: Array<number>[] = [];
       xfer.on('input', (payload: Uint8Array) => {
-        packets.push(payload);
+        packets.push(Array.from(payload));
       });
 
       xfer.accept().then(() => {
@@ -89,14 +89,27 @@ export class ZmodemHandler {
           }
         }).then(() => {
           zsession.close();
+          input.remove();
         });
       } else {
         zsession.close();
+        input.remove();
       }
     };
 
+    // Handle cancel (focus returns without file selection)
+    const onFocusBack = () => {
+      setTimeout(() => {
+        if (input.files?.length === 0) {
+          zsession.close();
+          input.remove();
+        }
+      }, 1000);
+      window.removeEventListener('focus', onFocusBack);
+    };
+    window.addEventListener('focus', onFocusBack);
+
     document.body.appendChild(input);
     input.click();
-    document.body.removeChild(input);
   }
 }

scripts/build-html.js

@@ -34,15 +34,26 @@ try {
     }
   }
 
-  // 4. Inline CSS (replace <link rel="stylesheet" ...>)
+  // 4. Inline favicon.svg as base64 data URL
+  const faviconPath = path.join(frontendDir, 'public', 'favicon.svg');
+  if (fs.existsSync(faviconPath)) {
+    const faviconContent = fs.readFileSync(faviconPath, 'utf8');
+    const faviconBase64 = Buffer.from(faviconContent).toString('base64');
+    html = html.replace(
+      /href=["']\/favicon\.svg["']/i,
+      `href="data:image/svg+xml;base64,${faviconBase64}"`
+    );
+  }
+
+  // 5. Inline CSS (replace <link rel="stylesheet" ...>)
   html = html.replace(/<link[^>]*rel=["']stylesheet["'][^>]*href=["']\/assets\/[^"']+["'][^>]*>/i, () => `<style>${cssContent}</style>`);
   html = html.replace(/<link[^>]*rel=["']stylesheet["'][^>]*href=["']\/src\/[^"']+["'][^>]*>/i, () => `<style>${cssContent}</style>`);
 
-  // 5. Inline JS (replace <script type="module" src="/src/main.ts"></script> or similar)
+  // 6. Inline JS (replace <script type="module" src="/src/main.ts"></script> or similar)
   html = html.replace(/<script[^>]*type=["']module["'][^>]*src=["']\/assets\/[^"']+["'][^>]*><\/script>/i, () => `<script type="module">${jsContent}</script>`);
   html = html.replace(/<script[^>]*type=["']module["'][^>]*src=["']\/src\/[^"']+["'][^>]*><\/script>/i, () => `<script type="module">${jsContent}</script>`);
 
-  // 6. Write to src/worker/html.ts
+  // 7. Write to src/worker/html.ts
   const escapedHtml = html
     .replace(/\\/g, '\\\\')
     .replace(/`/g, '\\`')