[nathfavour]

🚨 Severity: HIGH
💡 Vulnerability: isValidDiscordWebhookUrl in app/api/discord/route.ts permitted arbitrary non-standard ports (enabling internal port scanning), userinfo credentials (user:pass@, enabling credential smuggling), and loose path matching (allowing traversal and invalid resource endpoints).
🎯 Impact: Attackers or compromised bots could use webhook dispatch to perform internal port probing or leak credentials in outbound requests.
🔧 Fix: Enforce standard port 443, reject userinfo, and validate the path against /^\/api\/webhooks\/\d{15,21}\/[\w-]{20,100}\/?$/.
✅ Verification: Added comprehensive unit tests in app/api/discord/route.test.ts, verified 35/35 tests pass, and ran full test suite and ESLint with zero errors.

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PR created automatically by Jules for task 2321008999710079397 started by @nathfavour

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