refactor(traffic): update traffic flow host file generation and configuration scripts

- Renamed and refactored functions for better clarity, including `buildHostComposeSnippet` to `buildHostComposeOverride` and `buildHostNftSnippet` to `buildHostLinuxInstallSh`.
- Introduced a new script for Linux installation of WireGuard, enhancing the setup process for Docker hosts.
- Updated the `generateNativeConf` function to conditionally include the listen port in the configuration.
- Adjusted the `FlowOverlaySheet` component to default to the new Linux tab and improved the user interface for selecting jump-hosts.

Co-authored-by: Cursor <[email protected]>

components/reui-kit/code-export-sheet.tsx

@@ -60,10 +60,10 @@ function highlightLine(line: string): string {
   return "text-foreground/90"
 }
 
-function CodeBlock({ code }: { code: string }) {
+function CodeBlock({ code, className }: { code: string; className?: string }) {
   const lines = code.length ? code.split("\n") : [""]
   return (
-    <pre className="px-4 py-3.5 text-[12px] font-mono leading-[1.65] whitespace-pre-wrap break-all select-all">
+    <pre className={cn("px-4 py-3.5 text-[12px] font-mono leading-[1.65] whitespace-pre-wrap break-all select-all", className)}>
       {lines.map((line, i) => (
         <span key={i} className={cn("block", highlightLine(line))}>
           {line || " "}
@@ -281,4 +281,4 @@ function CodeExportSheet({
   )
 }
 
-export { CodeExportSheet, downloadText }
+export { CodeExportSheet, CodeBlock, downloadText }