feat: 新增日志中心、功能优化与代码重构

- 新增 log_datasource.go / log_proxy.go / user_api_token.go 后端控制器
- 新增 log_datasource.go model
- 新增 monitor/log-center.ts API 模块
- 新增 LogCenter 前端组件及页面
- 重构 deployment 相关组件 (HPDA/UpdateImageModal/bundle-yaml 等)
- 新增 ResetPasswordDialog / code-snippet-block / copy-button 等 UI 组件
- 重构多个 k8s 相关组件 (TopologyView/ResourceVisualEditor/PodFileBrowser 等)
- 更新多个 API 和工具函数 (auth.ts/monitor/index.ts/request.ts 等)
- 更新静态资源 (index.html + 新 JS/CSS bundle)
- 删除废弃静态资源文件

frontend/src/components/ui/code-snippet-block.tsx

@@ -0,0 +1,43 @@
+// code-snippet-block.tsx — 代码片段展示 + 外侧复制按钮 // Logan.Li
+import { CopyButton } from '@/components/ui/copy-button';
+import { cn } from '@/lib/utils';
+
+export interface CodeSnippetBlockProps {
+  label?: string;
+  code: string;
+  copyLabel?: string;
+  className?: string;
+  /** 无密钥等场景禁用复制 // Logan.Li */
+  copyDisabled?: boolean;
+  copyDisabledTitle?: string;
+}
+
+export function CodeSnippetBlock({
+  label, code, copyLabel = '已复制', className, copyDisabled, copyDisabledTitle,
+}: CodeSnippetBlockProps) {
+  return (
+    <div className={cn('space-y-1.5', className)}>
+      <div className="flex items-center justify-between gap-2">
+        {label ? (
+          <p className="text-xs text-[var(--dg-text-muted)]">{label}</p>
+        ) : (
+          <span />
+        )}
+        <CopyButton
+          text={code}
+          label={copyLabel}
+          variant="outline"
+          size="sm"
+          className="border-[var(--dg-border)] text-[var(--dg-text-secondary)] h-7 px-2"
+          disabled={copyDisabled}
+          title={copyDisabled ? (copyDisabledTitle || '不可复制') : '复制'}
+        >
+          复制
+        </CopyButton>
+      </div>
+      <pre className="text-[11px] font-mono text-[var(--dg-text-secondary)] bg-[var(--dg-bg-secondary)] border border-[var(--dg-border)] rounded-md p-3 overflow-x-auto whitespace-pre-wrap leading-relaxed">
+        {code}
+      </pre>
+    </div>
+  );
+}

frontend/src/components/ui/copy-button.tsx

@@ -0,0 +1,74 @@
+// copy-button.tsx — 统一复制按钮（图标 + 文案）// Logan.Li
+import { useState } from 'react';
+import { Copy, Check } from 'lucide-react';
+import { Button } from '@/components/ui/button';
+import { useToast } from '@/hooks/use-toast';
+import { copyToClipboard } from '@/utils/clipboard';
+import { cn } from '@/lib/utils';
+
+export interface CopyButtonProps {
+  text: string;
+  /** 复制成功 toast 标题 */
+  label?: string;
+  /** 按钮展示文案，默认仅图标 */
+  children?: React.ReactNode;
+  className?: string;
+  size?: 'default' | 'sm' | 'lg' | 'icon';
+  variant?: 'default' | 'outline' | 'ghost' | 'secondary';
+  disabled?: boolean;
+  title?: string;
+}
+
+export function CopyButton({
+  text,
+  label = '已复制',
+  children,
+  className,
+  size = 'sm',
+  variant = 'outline',
+  disabled,
+  title = '复制',
+}: CopyButtonProps) {
+  const { toast } = useToast();
+  const [copied, setCopied] = useState(false);
+
+  const handleCopy = async () => {
+    const ok = await copyToClipboard(text);
+    if (ok) {
+      setCopied(true);
+      toast({ title: label });
+      setTimeout(() => setCopied(false), 2000);
+    } else {
+      toast({
+        title: '复制失败',
+        description: '请手动选中内容后复制',
+        variant: 'destructive',
+      });
+    }
+  };
+
+  const isIconOnly = !children && size === 'icon';
+
+  return (
+    <Button
+      type="button"
+      variant={variant}
+      size={size}
+      className={cn(
+        isIconOnly ? 'h-8 w-8 shrink-0' : 'shrink-0',
+        className,
+      )}
+      onClick={handleCopy}
+      disabled={disabled || !text}
+      title={title}
+      aria-label={title}
+    >
+      {copied ? (
+        <Check className={cn('text-emerald-400', children ? 'h-3.5 w-3.5 mr-1' : 'h-3.5 w-3.5')} />
+      ) : (
+        <Copy className={cn(children ? 'h-3.5 w-3.5 mr-1' : 'h-3.5 w-3.5')} />
+      )}
+      {children}
+    </Button>
+  );
+}