Add Loop to site manifest

[JammyVibez]

What is Loop?

Loop is a platform where users create a public profile at https://loopapp.me/profile/<username>. Non-existent profiles return a proper HTTP 404, which makes Loop reliably detectable via the status_code error type.

This PR adds Loop to sherlock_project/resources/data.json, placed alphabetically between Lobsters and LottieFiles:

"Loop": {
  "errorType": "status_code",
  "url": "https://loopapp.me/profile/{}",
  "urlMain": "https://loopapp.me",
  "username_claimed": "thetradingguy01"
}

Testing

The site has been tested and passes both claimed and unclaimed checks:

Username	Profile URL	Final HTTP status	Sherlock result
thetradingguy01 (claimed)	https://loopapp.me/profile/thetradingguy01	200 (after 301 -> www.)	CLAIMED ✅
noonewouldeverusethis7 (unclaimed)	https://loopapp.me/profile/noonewouldeverusethis7	404 (after 301 -> www.)	AVAILABLE ✅

Local verification (mirroring the Modified Target Validation workflow):

• pytest tests/test_validate_targets.py -m validate_targets --chunked-sites "Loop" — test_false_neg[Loop] and test_false_pos[Loop] both pass (false positives also confirmed absent via random usernames)
• Manifest validates against data.schema.json (username_unclaimed is intentionally omitted, as it is not permitted by the current schema)
• Full offline suite (pytest -m "not online") passes

The status_code detection works cleanly since Loop's /profile/[username] route returns a proper HTTP 404 for non-existent usernames, and requests transparently follows the apex -> www. redirect.

Site: https://loopapp.me