feat: add clickable hyperlinks for URLs in terminal output

Use OSC 8 escape sequences to make tweet and list URLs clickable
in supported terminals (iTerm2, Ghostty, Kitty, WezTerm, VS Code, etc.).

- Add hyperlink() helper function in output.ts
- Apply hyperlinks in printTweets() for tweet URLs
- Apply hyperlinks in printLists() for list URLs
- Add hyperlinks flag to OutputConfig (auto-disabled for non-TTY)
- Automatically falls back to plain text in --plain mode or when piped

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <[email protected]>

src/commands/lists.ts

@@ -4,6 +4,7 @@
 import type { Command } from 'commander';
 import type { CliContext } from '../cli/shared.js';
 import { extractListId } from '../lib/extract-list-id.js';
+import { hyperlink } from '../lib/output.js';
 import type { TwitterList } from '../lib/twitter-client.js';
 import { TwitterClient } from '../lib/twitter-client.js';
 
@@ -23,7 +24,8 @@ function printLists(lists: TwitterList[], ctx: CliContext): void {
     if (list.owner) {
       console.log(`  ${ctx.colors.muted(`Owner: @${list.owner.username}`)}`);
     }
-    console.log(`  ${ctx.colors.accent(`https://x.com/i/lists/${list.id}`)}`);
+    const listUrl = `https://x.com/i/lists/${list.id}`;
+    console.log(`  ${ctx.colors.accent(hyperlink(listUrl, listUrl, ctx.getOutput()))}`);
     console.log('──────────────────────────────────────────────────');
   }
 }