chore: publish as torlnk on npm, keep torlink as the brand

The npm name and command become torlnk (npx torlnk) to clear npm's
"too similar to comlink" guard, mirroring the sndcli/soundcli split. torlink
stays the brand everywhere it matters: the logo wordmark, app and terminal
title, version string, the data and downloads folder (APP_NAME), and the repo.
Updates the cli usage lines, readme install commands, and the user-agent
package url to match.

package.json

@@ -1,10 +1,10 @@
 {
-  "name": "torlink",
+  "name": "torlnk",
   "version": "1.0.0",
   "description": "A sleek, zero-setup torrent finder and downloader that lives right in your terminal.",
   "type": "module",
   "bin": {
-    "torlink": "./dist/index.js"
+    "torlnk": "./dist/index.js"
   },
   "files": [
     "dist",